Acetone[μ-N,N′-bis­(3-meth­oxy-2-oxido­benzyl­idene)-1,2-propane­diamine]­trinitratocopper(II)praseodymium(III)

Sun, W.-B.; Gao, T.; Yan, P.-F.; Li, G.-M.; Hou, G.-F.

doi:10.1107/S1600536807034460

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Acetone[μ-N,N′-bis(3-methoxy-2-oxidobenzylidene)-1,2-propanediamine]trinitratocopper(II)praseodymium(III)

W.-B. Sun, T. Gao, P.-F. Yan, G.-M. Li and G.-F. Hou

In the title complex (systematic name: (acetone-2κO){6,6′-dimethoxy-2,2′-[propane-1,2-diylbis(nitrilomethylidyne)]diphenolato-1κ⁴O¹,O^1′,O⁶,O^6′:2κ⁴O¹,N,N′,O^1′}trinitrato-1κ⁶O,O′-copper(II)praseodymium(III)), [CuPr(C₁₉H₂₀N₂O₄)(NO₃)₃(C₃H₆O)], the Cu^II ion is five-coordinated by two O atoms and two N atoms of the deprotonated Schiff base and by the acetone, giving rise to a square-pyramidal geometry, whereas the Pr^III ion is ten-coordinated by six nitrate O atoms and four O atoms of the deprotonated Schiff base. The C atoms, with attached H atoms, of the diaminopropane link are disordered over two positions with site occupancy factors of ca 0.7 and 0.3.

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Supporting information

	Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807034460/ng2296sup1.cif Contains datablocks I, global
	Structure factor file (CIF format) https://doi.org/10.1107/S1600536807034460/ng2296Isup2.hkl Contains datablock I

CCDC reference: 625765

checkCIF report

Key indicators

Single-crystal X-ray study
T = 295 K
Mean (C-C) = 0.008 Å
Disorder in main residue
R factor = 0.036
wR factor = 0.110
Data-to-parameter ratio = 15.8

checkCIF/PLATON results

No syntax errors found





Alert level B
PLAT241_ALERT_2_B Check High      Ueq as Compared to Neighbors for        O11
PLAT241_ALERT_2_B Check High      Ueq as Compared to Neighbors for        O13
PLAT432_ALERT_2_B Short Inter X...Y Contact  O12    ..  C9      ..       2.75 Ang.

Alert level C
PLAT062_ALERT_4_C Rescale T(min) & T(max) by .....................       0.98
PLAT220_ALERT_2_C Large Non-Solvent    C     Ueq(max)/Ueq(min) ...       3.14 Ratio
PLAT220_ALERT_2_C Large Non-Solvent    O     Ueq(max)/Ueq(min) ...       2.68 Ratio
PLAT222_ALERT_3_C Large Non-Solvent    H     Ueq(max)/Ueq(min) ...       3.94 Ratio
PLAT241_ALERT_2_C Check High      Ueq as Compared to Neighbors for         O5
PLAT241_ALERT_2_C Check High      Ueq as Compared to Neighbors for         O7
PLAT241_ALERT_2_C Check High      Ueq as Compared to Neighbors for         O8
PLAT241_ALERT_2_C Check High      Ueq as Compared to Neighbors for        O10
PLAT242_ALERT_2_C Check Low       Ueq as Compared to Neighbors for        Pr1
PLAT242_ALERT_2_C Check Low       Ueq as Compared to Neighbors for         N3
PLAT242_ALERT_2_C Check Low       Ueq as Compared to Neighbors for         N4
PLAT242_ALERT_2_C Check Low       Ueq as Compared to Neighbors for         N5
PLAT242_ALERT_2_C Check Low       Ueq as Compared to Neighbors for        C8'
PLAT242_ALERT_2_C Check Low       Ueq as Compared to Neighbors for        C21
PLAT242_ALERT_2_C Check Low       Ueq as Compared to Neighbors for         C8
PLAT242_ALERT_2_C Check Low       Ueq as Compared to Neighbors for        C10
PLAT301_ALERT_3_C Main Residue  Disorder .........................       7.00 Perc.

Alert level G
PLAT793_ALERT_1_G Check the Absolute Configuration of C8     = ...          S
PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints .......         56

   0 ALERT level A = In general: serious problem
   3 ALERT level B = Potentially serious problem
  17 ALERT level C = Check and explain
   2 ALERT level G = General alerts; check

   1 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
  17 ALERT type 2 Indicator that the structure model may be wrong or deficient
   3 ALERT type 3 Indicator that the structure quality may be low
   1 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check

Comment top

As shown in Fig. 1, the octodentate Schiff base ligand links Cu and Pr atoms into a dinuclear complex through two phenolate O atoms, which is similar with the bonding reported for another copper-lanthanum complex of the same ligand (Kara et al., 2000). The Pr^III centre in (I) is ten-coordinated by four oxygen atoms from the ligand and six oxygen atoms from three nitrate ions. The Cu^II center is five-coordinate by two nitrogen atoms and two oxygen atoms from the ligand and one oxygen atom from acetone in a square-pyramidal geometry.

Related literature top

See Kara et al. (2000) for a similar copper–lanthanum complex of the same Schiff base.

Experimental top

The title complex was obtained by the treatment of copper(II) acetate monohydrate with the Schiff base in methanol/acetone (4:1). The first two reactants were refluxed for 6 h, and the mixture was refluxed for another 3 h after the addition of praseodymium (III) nitrate hexahydrate. The reaction mixture was cooled and filtered; diethyl ether was allowed to diffuse slowly into the solution of the filtrate. Single crystals were obtained after several days. Analysis calculated for C₂₂H₂₆CuN₅O₁₄Pr: C, 33.49; H, 3.32; Cu, 8.05; N, 8.88; Pr, 17.86; found: C, 33.10; H, 3.05; Cu, 7.85; N, 8.25; Pr, 17.23%.

Structure description top

See Kara et al. (2000) for a similar copper–lanthanum complex of the same Schiff base.

Computing details top

Data collection: RAPID-AUTO (Rigaku, 1998); cell refinement: RAPID-AUTO; data reduction: CrystalStructure (Rigaku/MSC, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997a); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997a); molecular graphics: SHELXTL (Sheldrick, 1997b); software used to prepare material for publication: SHELXL97.

Figures top

Fig. 1. The molecular structure of (I), showing 30% probability displacement ellipsoids. The disordered C8', C9', C10' and all H atoms have been omitted.

(acetone-2κO){6,6'-dimethoxy-2,2'-[propane-1,2- diylbis(nitrilomethylidyne)]diphenolato- 1κ⁴O¹,O^1',O⁶,O^6':2κ⁴O¹,N,N',O^1'}trinitrato- 1κ⁶O,O'-copper(II)neodymium(III) top

Crystal data top

[CuPr(C₁₉H₂₀N₂O₄)(NO₃)₃(C₃H₆O)]	F(000) = 1555
M_r = 784.64	D_x = 1.790 Mg m⁻³
Monoclinic, P2₁/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybc	Cell parameters from 20972 reflections
a = 9.879 (3) Å	θ = 3.0–27.5°
b = 18.887 (7) Å	µ = 2.46 mm⁻¹
c = 15.676 (5) Å	T = 295 K
β = 95.376 (14)°	Block, colourless
V = 2912.2 (16) Å³	0.39 × 0.25 × 0.24 mm
Z = 4

Data collection top

Rigaku RAXIS-RAPID diffractometer	6654 independent reflections
Radiation source: fine-focus sealed tube	5376 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.033
ω scans	θ_max = 27.5°, θ_min = 3.0°
Absorption correction: multi-scan (ABSCOR; Higashi, 1995)	h = −12→12
T_min = 0.447, T_max = 0.567	k = −24→24
25560 measured reflections	l = −20→20

Refinement top

Refinement on F²	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F² > 2σ(F²)] = 0.037	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.110	H-atom parameters constrained
S = 1.11	w = 1/[σ²(F_o²) + (0.0596P)² + 1.9949P] where P = (F_o² + 2F_c²)/3
6654 reflections	(Δ/σ)_max = 0.004
421 parameters	Δρ_max = 1.01 e Å⁻³
56 restraints	Δρ_min = −0.75 e Å⁻³

Crystal data top

[CuPr(C₁₉H₂₀N₂O₄)(NO₃)₃(C₃H₆O)]	V = 2912.2 (16) Å³
M_r = 784.64	Z = 4
Monoclinic, P2₁/c	Mo Kα radiation
a = 9.879 (3) Å	µ = 2.46 mm⁻¹
b = 18.887 (7) Å	T = 295 K
c = 15.676 (5) Å	0.39 × 0.25 × 0.24 mm
β = 95.376 (14)°

Data collection top

Rigaku RAXIS-RAPID diffractometer	6654 independent reflections
Absorption correction: multi-scan (ABSCOR; Higashi, 1995)	5376 reflections with I > 2σ(I)
T_min = 0.447, T_max = 0.567	R_int = 0.033
25560 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.037	56 restraints
wR(F²) = 0.110	H-atom parameters constrained
S = 1.11	Δρ_max = 1.01 e Å⁻³
6654 reflections	Δρ_min = −0.75 e Å⁻³
421 parameters

Special details top

Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes.

Refinement. Refinement of F² against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F², conventional R-factors R are based on F, with F set to zero for negative F². The threshold expression of F² > σ(F²) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F² are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²) top

	x	y	z	U_iso*/U_eq	Occ. (<1)
C1	0.8680 (4)	0.2350 (2)	0.3353 (3)	0.0444 (9)
C2	0.9441 (5)	0.1951 (2)	0.3985 (3)	0.0480 (10)
C3	1.0029 (6)	0.2261 (3)	0.4713 (4)	0.0676 (15)
H1	1.0514	0.1989	0.5131	0.081*
C4	0.9895 (6)	0.2994 (3)	0.4825 (4)	0.0748 (17)
H2	1.0267	0.3207	0.5328	0.090*
C5	0.9234 (5)	0.3387 (3)	0.4211 (4)	0.0684 (16)
H3	0.9178	0.3874	0.4291	0.082*
C6	0.8622 (5)	0.3091 (2)	0.3451 (3)	0.0520 (11)
C7	0.7993 (6)	0.3557 (3)	0.2800 (5)	0.0760 (18)
H4	0.8057	0.4041	0.2907	0.091*
C11	0.5822 (7)	0.2497 (4)	0.0017 (4)	0.0783 (19)
H11	0.5442	0.2763	−0.0444	0.094*
C12	0.5947 (5)	0.1744 (3)	−0.0112 (3)	0.0594 (13)
C13	0.5531 (6)	0.1477 (4)	−0.0920 (3)	0.0750 (18)
H12	0.5149	0.1782	−0.1342	0.090*
C14	0.5669 (7)	0.0777 (4)	−0.1105 (3)	0.0761 (19)
H13	0.5369	0.0608	−0.1647	0.091*
C15	0.6248 (5)	0.0325 (3)	−0.0499 (3)	0.0606 (13)
H14	0.6348	−0.0151	−0.0630	0.073*
C16	0.6688 (5)	0.0572 (3)	0.0312 (3)	0.0492 (11)
C17	0.6527 (5)	0.1276 (3)	0.0526 (3)	0.0493 (11)
C18	0.7768 (6)	−0.0526 (3)	0.0730 (4)	0.0636 (14)
H15	0.6997	−0.0816	0.0546	0.095*
H17	0.8273	−0.0742	0.1214	0.095*
H16	0.8340	−0.0480	0.0270	0.095*
C19	1.0568 (7)	0.0843 (3)	0.4255 (4)	0.0703 (16)
H18	1.1406	0.1102	0.4268	0.106*
H19	1.0667	0.0397	0.3976	0.106*
H20	1.0345	0.0764	0.4830	0.106*
C20	0.3179 (7)	0.1927 (4)	0.1389 (4)	0.0841 (19)
H21	0.2896	0.2285	0.0975	0.126*
H22	0.2443	0.1604	0.1444	0.126*
H23	0.3942	0.1674	0.1204	0.126*
C21	0.3576 (6)	0.2265 (3)	0.2231 (4)	0.0620 (13)
C22	0.2484 (8)	0.2423 (5)	0.2793 (5)	0.102 (2)
H24	0.2131	0.1987	0.2997	0.154*
H25	0.1767	0.2680	0.2474	0.154*
H26	0.2849	0.2703	0.3272	0.154*
Cu1	0.70339 (7)	0.24136 (3)	0.17375 (4)	0.05314 (16)
Pr1	0.78327 (2)	0.072680 (11)	0.251884 (13)	0.03820 (9)
N1	0.7363 (6)	0.3368 (2)	0.2097 (4)	0.0833 (17)
N2	0.6188 (6)	0.2829 (3)	0.0708 (3)	0.0736 (14)
N3	1.0501 (4)	0.0451 (2)	0.1849 (3)	0.0553 (10)
N4	0.7742 (5)	−0.0693 (2)	0.3381 (3)	0.0607 (11)
N5	0.5171 (6)	0.0863 (3)	0.3227 (4)	0.0774 (15)
O1	0.8088 (3)	0.19986 (16)	0.2688 (2)	0.0501 (7)
O2	0.9507 (3)	0.12417 (17)	0.3795 (2)	0.0516 (8)
O3	0.6936 (4)	0.14686 (17)	0.13258 (18)	0.0510 (8)
O4	0.7309 (3)	0.01636 (17)	0.09667 (19)	0.0496 (7)
O5	0.9915 (4)	0.1033 (2)	0.1734 (3)	0.0686 (10)
O6	1.1512 (6)	0.0298 (3)	0.1524 (4)	0.1089 (19)
O7	0.9956 (4)	0.00182 (18)	0.2334 (3)	0.0631 (9)
O8	0.7247 (5)	−0.0603 (2)	0.2635 (2)	0.0707 (11)
O9	0.7751 (6)	−0.1266 (2)	0.3731 (3)	0.1046 (17)
O10	0.8210 (5)	−0.0157 (2)	0.3766 (2)	0.0715 (10)
O11	0.5273 (5)	0.0602 (3)	0.2508 (3)	0.0887 (14)
O12	0.4092 (6)	0.0918 (4)	0.3531 (5)	0.133 (2)
O13	0.6254 (5)	0.1080 (3)	0.3616 (3)	0.0890 (13)
O14	0.4757 (4)	0.2408 (2)	0.2439 (3)	0.0718 (11)
C8	0.622 (2)	0.3855 (8)	0.1689 (15)	0.067 (6)	0.289 (11)
H5	0.5540	0.3932	0.2097	0.080*	0.289 (11)
C9	0.674 (4)	0.4528 (12)	0.143 (2)	0.139 (15)	0.289 (11)
H6	0.7042	0.4485	0.0868	0.209*	0.289 (11)
H7	0.7491	0.4668	0.1829	0.209*	0.289 (11)
H8	0.6036	0.4879	0.1423	0.209*	0.289 (11)
C10	0.5539 (19)	0.3537 (8)	0.0867 (10)	0.044 (4)	0.289 (11)
H9	0.4575	0.3474	0.0917	0.053*	0.289 (11)
H10	0.5643	0.3853	0.0390	0.053*	0.289 (11)
C8'	0.7006 (12)	0.3867 (5)	0.1348 (6)	0.083 (3)	0.711 (11)
C9'	0.7917 (14)	0.3991 (6)	0.0717 (10)	0.128 (6)	0.711 (11)
C10'	0.6150 (14)	0.3613 (5)	0.0732 (7)	0.088 (3)	0.711 (11)

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
C1	0.042 (2)	0.037 (2)	0.054 (2)	−0.0015 (18)	0.0044 (19)	−0.0046 (18)
C2	0.048 (2)	0.046 (2)	0.049 (2)	−0.006 (2)	−0.004 (2)	−0.0070 (19)
C3	0.069 (3)	0.064 (3)	0.066 (3)	0.001 (3)	−0.014 (3)	−0.013 (3)
C4	0.071 (4)	0.064 (4)	0.086 (4)	−0.003 (3)	−0.013 (3)	−0.036 (3)
C5	0.055 (3)	0.043 (3)	0.106 (5)	−0.002 (2)	−0.003 (3)	−0.024 (3)
C6	0.040 (2)	0.038 (2)	0.077 (3)	−0.0029 (19)	0.000 (2)	−0.007 (2)
C7	0.065 (3)	0.029 (2)	0.131 (6)	−0.001 (2)	−0.009 (4)	0.003 (3)
C11	0.081 (4)	0.098 (5)	0.055 (3)	0.029 (4)	0.003 (3)	0.038 (3)
C12	0.053 (3)	0.086 (4)	0.038 (2)	0.012 (3)	0.000 (2)	0.017 (2)
C13	0.066 (3)	0.115 (6)	0.042 (3)	0.005 (4)	−0.004 (2)	0.019 (3)
C14	0.066 (3)	0.122 (6)	0.038 (2)	−0.010 (4)	−0.009 (2)	0.003 (3)
C15	0.055 (3)	0.086 (4)	0.040 (2)	−0.014 (3)	0.003 (2)	−0.008 (2)
C16	0.045 (2)	0.065 (3)	0.038 (2)	−0.006 (2)	0.0057 (19)	−0.001 (2)
C17	0.046 (2)	0.069 (3)	0.0327 (19)	0.001 (2)	0.0031 (18)	0.007 (2)
C18	0.077 (4)	0.054 (3)	0.060 (3)	0.006 (3)	0.008 (3)	−0.014 (2)
C19	0.076 (4)	0.054 (3)	0.074 (4)	0.009 (3)	−0.027 (3)	0.001 (3)
C20	0.067 (4)	0.092 (5)	0.090 (4)	−0.020 (3)	−0.006 (3)	−0.011 (4)
C21	0.055 (3)	0.057 (3)	0.074 (3)	−0.003 (2)	0.005 (3)	0.004 (3)
C22	0.073 (4)	0.131 (7)	0.107 (5)	0.001 (5)	0.026 (4)	−0.014 (5)
Cu1	0.0654 (4)	0.0380 (3)	0.0542 (3)	0.0070 (3)	−0.0038 (3)	0.0120 (2)
Pr1	0.04735 (15)	0.03195 (13)	0.03429 (13)	0.00098 (9)	−0.00148 (9)	0.00179 (8)
N1	0.096 (4)	0.031 (2)	0.116 (4)	−0.002 (2)	−0.026 (3)	0.014 (3)
N2	0.094 (4)	0.065 (3)	0.062 (3)	0.027 (3)	0.003 (3)	0.029 (2)
N3	0.055 (2)	0.043 (2)	0.069 (3)	−0.0001 (19)	0.014 (2)	−0.0002 (19)
N4	0.080 (3)	0.041 (2)	0.057 (2)	−0.011 (2)	−0.014 (2)	0.0130 (18)
N5	0.072 (3)	0.081 (4)	0.084 (4)	0.004 (3)	0.030 (3)	0.008 (3)
O1	0.0594 (19)	0.0348 (16)	0.0529 (17)	0.0021 (14)	−0.0111 (15)	0.0018 (13)
O2	0.0605 (19)	0.0394 (16)	0.0507 (17)	0.0038 (14)	−0.0174 (15)	0.0000 (14)
O3	0.068 (2)	0.0476 (18)	0.0362 (15)	0.0119 (15)	−0.0032 (14)	0.0074 (13)
O4	0.0578 (18)	0.0493 (18)	0.0407 (15)	0.0011 (15)	−0.0005 (14)	−0.0058 (13)
O5	0.068 (2)	0.052 (2)	0.089 (3)	0.0092 (18)	0.024 (2)	0.021 (2)
O6	0.098 (3)	0.073 (3)	0.169 (5)	0.016 (3)	0.080 (4)	0.014 (3)
O7	0.062 (2)	0.0446 (19)	0.084 (2)	0.0074 (16)	0.0117 (19)	0.0159 (17)
O8	0.098 (3)	0.052 (2)	0.056 (2)	−0.020 (2)	−0.023 (2)	0.0102 (16)
O9	0.147 (4)	0.064 (3)	0.094 (3)	−0.021 (3)	−0.035 (3)	0.031 (2)
O10	0.095 (2)	0.0604 (19)	0.0561 (17)	−0.0169 (17)	−0.0104 (17)	0.0087 (15)
O11	0.058 (2)	0.114 (4)	0.094 (3)	−0.008 (2)	0.009 (2)	−0.020 (3)
O12	0.081 (4)	0.170 (6)	0.159 (6)	0.005 (4)	0.070 (4)	0.004 (5)
O13	0.0882 (15)	0.0920 (16)	0.0874 (15)	0.0007 (10)	0.0117 (10)	−0.0043 (10)
O14	0.060 (2)	0.080 (3)	0.075 (2)	−0.012 (2)	0.004 (2)	−0.017 (2)
C8	0.076 (12)	0.023 (7)	0.106 (15)	0.018 (8)	0.029 (11)	0.014 (8)
C9	0.17 (4)	0.10 (2)	0.15 (3)	0.07 (2)	0.04 (3)	0.00 (2)
C10	0.042 (5)	0.043 (5)	0.047 (5)	−0.001 (3)	0.002 (3)	0.009 (3)
C8'	0.090 (4)	0.069 (4)	0.088 (4)	0.001 (3)	0.006 (3)	0.013 (3)
C9'	0.128 (10)	0.070 (7)	0.197 (15)	−0.013 (7)	0.073 (10)	0.023 (8)
C10'	0.089 (3)	0.088 (3)	0.088 (3)	0.0016 (11)	0.0086 (11)	0.0014 (11)

Geometric parameters (Å, º) top

C1—O1	1.325 (5)	C21—C22	1.485 (9)
C1—C2	1.406 (7)	C22—H24	0.9600
C1—C6	1.410 (6)	C22—H25	0.9600
C2—C3	1.363 (7)	C22—H26	0.9600
C2—O2	1.375 (5)	Cu1—O3	1.897 (3)
C3—C4	1.404 (8)	Cu1—O1	1.905 (3)
C3—H1	0.9300	Cu1—N1	1.907 (5)
C4—C5	1.336 (9)	Cu1—N2	1.915 (4)
C4—H2	0.9300	Cu1—O14	2.594 (4)
C5—C6	1.401 (7)	Cu1—Pr1	3.4774 (12)
C5—H3	0.9300	Pr1—O1	2.427 (3)
C6—C7	1.443 (8)	Pr1—O3	2.436 (3)
C7—N1	1.266 (9)	Pr1—O13	2.518 (5)
C7—H4	0.9300	Pr1—O7	2.528 (4)
C11—N2	1.273 (9)	Pr1—O11	2.538 (4)
C11—C12	1.444 (9)	Pr1—O5	2.559 (4)
C11—H11	0.9300	Pr1—O10	2.571 (4)
C12—C13	1.388 (8)	Pr1—O8	2.588 (4)
C12—C17	1.416 (7)	Pr1—O2	2.658 (3)
C13—C14	1.363 (9)	Pr1—O4	2.661 (3)
C13—H12	0.9300	N1—C8	1.549 (19)
C14—C15	1.363 (8)	N2—C10	1.514 (17)
C14—H13	0.9300	N3—O6	1.199 (6)
C15—C16	1.384 (6)	N3—O5	1.247 (6)
C15—H14	0.9300	N3—O7	1.270 (5)
C16—O4	1.381 (6)	N4—O9	1.214 (5)
C16—C17	1.384 (7)	N4—O8	1.236 (5)
C17—O3	1.331 (5)	N4—O10	1.244 (5)
C18—O4	1.440 (6)	N5—O12	1.212 (7)
C18—H15	0.9600	N5—O11	1.244 (7)
C18—H17	0.9600	N5—O13	1.250 (7)
C18—H16	0.9600	C8—C9	1.444 (19)
C19—O2	1.430 (6)	C8—C10	1.52 (3)
C19—H18	0.9600	C8—H5	0.9800
C19—H19	0.9600	C9—H6	0.9600
C19—H20	0.9600	C9—H7	0.9600
C20—C21	1.486 (8)	C9—H8	0.9600
C20—H21	0.9600	C10—H9	0.9700
C20—H22	0.9600	C10—H10	0.9700
C20—H23	0.9600	C8'—C10'	1.313 (12)
C21—O14	1.213 (6)	C8'—C9'	1.417 (13)

O1—C1—C2	116.9 (4)	O1—Pr1—O8	167.01 (13)
O1—C1—C6	124.3 (4)	O3—Pr1—O8	123.00 (12)
C2—C1—C6	118.7 (4)	O13—Pr1—O8	93.01 (16)
C3—C2—O2	125.1 (5)	O7—Pr1—O8	71.80 (14)
C3—C2—C1	121.1 (5)	O11—Pr1—O8	71.42 (16)
O2—C2—C1	113.8 (4)	O5—Pr1—O8	116.62 (14)
C2—C3—C4	119.4 (6)	O10—Pr1—O8	48.21 (12)
C2—C3—H1	120.3	O1—Pr1—O2	60.30 (10)
C4—C3—H1	120.3	O3—Pr1—O2	121.56 (11)
C5—C4—C3	120.2 (5)	O13—Pr1—O2	76.72 (15)
C5—C4—H2	119.9	O7—Pr1—O2	79.38 (12)
C3—C4—H2	119.9	O11—Pr1—O2	126.05 (14)
C4—C5—C6	122.2 (5)	O5—Pr1—O2	78.91 (13)
C4—C5—H3	118.9	O10—Pr1—O2	68.27 (11)
C6—C5—H3	118.9	O8—Pr1—O2	115.44 (11)
C5—C6—C1	118.1 (5)	O1—Pr1—O4	120.33 (10)
C5—C6—C7	118.7 (5)	O3—Pr1—O4	60.17 (11)
C1—C6—C7	123.2 (5)	O13—Pr1—O4	130.59 (15)
N1—C7—C6	126.0 (5)	O7—Pr1—O4	77.04 (12)
N1—C7—H4	117.0	O11—Pr1—O4	81.28 (14)
C6—C7—H4	117.0	O5—Pr1—O4	75.36 (13)
N2—C11—C12	125.7 (5)	O10—Pr1—O4	115.93 (11)
N2—C11—H11	117.2	O8—Pr1—O4	69.57 (11)
C12—C11—H11	117.2	O2—Pr1—O4	152.68 (11)
C13—C12—C17	118.9 (6)	O1—Pr1—Cu1	31.75 (8)
C13—C12—C11	117.7 (5)	O3—Pr1—Cu1	31.62 (8)
C17—C12—C11	123.4 (5)	O13—Pr1—Cu1	82.12 (12)
C14—C13—C12	121.3 (6)	O7—Pr1—Cu1	127.44 (8)
C14—C13—H12	119.3	O11—Pr1—Cu1	83.65 (13)
C12—C13—H12	119.3	O5—Pr1—Cu1	77.87 (8)
C13—C14—C15	120.1 (5)	O10—Pr1—Cu1	151.01 (9)
C13—C14—H13	119.9	O8—Pr1—Cu1	150.37 (9)
C15—C14—H13	119.9	O2—Pr1—Cu1	91.98 (7)
C14—C15—C16	120.3 (6)	O4—Pr1—Cu1	91.49 (7)
C14—C15—H14	119.9	C7—N1—C8	118.2 (9)
C16—C15—H14	119.9	C7—N1—Cu1	125.5 (4)
O4—C16—C17	114.1 (4)	C8—N1—Cu1	110.0 (8)
O4—C16—C15	125.0 (5)	C11—N2—C10	119.0 (7)
C17—C16—C15	120.9 (5)	C11—N2—Cu1	125.6 (4)
O3—C17—C16	117.4 (4)	C10—N2—Cu1	112.4 (7)
O3—C17—C12	124.2 (5)	O6—N3—O5	123.1 (4)
C16—C17—C12	118.4 (4)	O6—N3—O7	121.0 (5)
O14—C21—C22	122.0 (6)	O5—N3—O7	115.9 (4)
O14—C21—C20	120.1 (5)	O9—N4—O8	122.3 (5)
C22—C21—C20	117.9 (6)	O9—N4—O10	121.3 (5)
O3—Cu1—O1	83.45 (13)	O8—N4—O10	116.3 (4)
O3—Cu1—N1	172.5 (2)	O12—N5—O11	122.6 (7)
O1—Cu1—N1	95.29 (19)	O12—N5—O13	121.7 (7)
O3—Cu1—N2	95.40 (19)	O11—N5—O13	115.7 (5)
O1—Cu1—N2	172.52 (19)	C1—O1—Cu1	125.3 (3)
N1—Cu1—N2	84.9 (2)	C1—O1—Pr1	128.0 (3)
O3—Cu1—O14	96.98 (14)	Cu1—O1—Pr1	106.14 (14)
O1—Cu1—O14	95.65 (14)	C2—O2—C19	116.8 (4)
N1—Cu1—O14	90.5 (2)	C2—O2—Pr1	118.7 (3)
N2—Cu1—O14	91.82 (19)	C19—O2—Pr1	124.2 (3)
O3—Cu1—Pr1	42.32 (9)	C17—O3—Cu1	125.4 (3)
O1—Cu1—Pr1	42.11 (9)	C17—O3—Pr1	128.5 (3)
N1—Cu1—Pr1	137.31 (17)	Cu1—O3—Pr1	106.06 (13)
N2—Cu1—Pr1	137.64 (17)	C16—O4—C18	116.3 (4)
O14—Cu1—Pr1	91.37 (10)	C16—O4—Pr1	119.4 (3)
O1—Pr1—O3	62.71 (11)	C18—O4—Pr1	124.0 (3)
O1—Pr1—O13	74.17 (15)	N3—O5—Pr1	96.6 (3)
O3—Pr1—O13	99.66 (15)	N3—O7—Pr1	97.5 (3)
O1—Pr1—O7	117.25 (12)	N4—O8—Pr1	97.3 (3)
O3—Pr1—O7	117.54 (11)	N4—O10—Pr1	98.0 (3)
O13—Pr1—O7	142.44 (15)	N5—O11—Pr1	97.0 (4)
O1—Pr1—O11	100.69 (14)	N5—O13—Pr1	97.9 (4)
O3—Pr1—O11	75.97 (15)	C21—O14—Cu1	137.6 (4)
O13—Pr1—O11	49.37 (16)	C9—C8—C10	105 (2)
O7—Pr1—O11	141.92 (14)	C9—C8—N1	112 (2)
O1—Pr1—O5	75.49 (12)	C10—C8—N1	111.2 (12)
O3—Pr1—O5	75.65 (12)	C9—C8—H5	109.7
O13—Pr1—O5	147.72 (16)	C10—C8—H5	109.7
O7—Pr1—O5	49.57 (11)	N1—C8—H5	109.7
O11—Pr1—O5	149.61 (16)	N2—C10—C8	109.2 (12)
O1—Pr1—O10	123.59 (12)	N2—C10—H9	109.8
O3—Pr1—O10	166.77 (13)	C8—C10—H9	109.8
O13—Pr1—O10	73.02 (16)	N2—C10—H10	109.8
O7—Pr1—O10	71.38 (13)	C8—C10—H10	109.8
O11—Pr1—O10	91.06 (16)	H9—C10—H10	108.3
O5—Pr1—O10	116.49 (13)	C10'—C8'—C9'	87.5 (10)

O1—C1—C2—C3	−176.6 (5)	O11—Pr1—O2—C19	117.3 (4)
C6—C1—C2—C3	5.0 (7)	O5—Pr1—O2—C19	−81.8 (4)
O1—C1—C2—O2	2.8 (6)	O10—Pr1—O2—C19	42.7 (4)
C6—C1—C2—O2	−175.6 (4)	O8—Pr1—O2—C19	32.5 (5)
O2—C2—C3—C4	179.4 (5)	O4—Pr1—O2—C19	−62.0 (5)
C1—C2—C3—C4	−1.3 (8)	Cu1—Pr1—O2—C19	−159.1 (4)
C2—C3—C4—C5	−2.1 (10)	C16—C17—O3—Cu1	171.8 (3)
C3—C4—C5—C6	1.8 (10)	C12—C17—O3—Cu1	−8.0 (6)
C4—C5—C6—C1	2.0 (8)	C16—C17—O3—Pr1	−3.9 (6)
C4—C5—C6—C7	−176.6 (6)	C12—C17—O3—Pr1	176.3 (3)
O1—C1—C6—C5	176.5 (4)	O1—Cu1—O3—C17	−165.9 (4)
C2—C1—C6—C5	−5.2 (7)	N2—Cu1—O3—C17	6.7 (4)
O1—C1—C6—C7	−5.1 (8)	O14—Cu1—O3—C17	99.2 (4)
C2—C1—C6—C7	173.3 (5)	Pr1—Cu1—O3—C17	−176.5 (4)
C5—C6—C7—N1	−177.4 (6)	O1—Cu1—O3—Pr1	10.57 (15)
C1—C6—C7—N1	4.1 (10)	N2—Cu1—O3—Pr1	−176.85 (19)
N2—C11—C12—C13	−178.1 (6)	O14—Cu1—O3—Pr1	−84.35 (15)
N2—C11—C12—C17	−1.1 (10)	O1—Pr1—O3—C17	167.1 (4)
C17—C12—C13—C14	0.0 (9)	O13—Pr1—O3—C17	−126.4 (4)
C11—C12—C13—C14	177.1 (6)	O7—Pr1—O3—C17	58.9 (4)
C12—C13—C14—C15	−1.1 (10)	O11—Pr1—O3—C17	−82.8 (4)
C13—C14—C15—C16	0.6 (9)	O5—Pr1—O3—C17	86.2 (4)
C14—C15—C16—O4	−178.7 (5)	O10—Pr1—O3—C17	−71.2 (7)
C14—C15—C16—C17	1.2 (7)	O8—Pr1—O3—C17	−26.4 (4)
O4—C16—C17—O3	−2.2 (6)	O2—Pr1—O3—C17	153.3 (3)
C15—C16—C17—O3	177.9 (4)	O4—Pr1—O3—C17	5.1 (3)
O4—C16—C17—C12	177.6 (4)	Cu1—Pr1—O3—C17	176.3 (5)
C15—C16—C17—C12	−2.3 (7)	O1—Pr1—O3—Cu1	−9.26 (13)
C13—C12—C17—O3	−178.5 (5)	O13—Pr1—O3—Cu1	57.21 (19)
C11—C12—C17—O3	4.5 (8)	O7—Pr1—O3—Cu1	−117.44 (15)
C13—C12—C17—C16	1.7 (7)	O11—Pr1—O3—Cu1	100.87 (18)
C11—C12—C17—C16	−175.3 (5)	O5—Pr1—O3—Cu1	−90.11 (17)
O3—Cu1—Pr1—O1	164.2 (2)	O10—Pr1—O3—Cu1	112.4 (5)
N1—Cu1—Pr1—O1	−4.6 (3)	O8—Pr1—O3—Cu1	157.23 (16)
N2—Cu1—Pr1—O1	168.9 (3)	O2—Pr1—O3—Cu1	−23.1 (2)
O14—Cu1—Pr1—O1	−96.91 (18)	O4—Pr1—O3—Cu1	−171.2 (2)
O1—Cu1—Pr1—O3	−164.2 (2)	C17—C16—O4—C18	−166.9 (4)
N1—Cu1—Pr1—O3	−168.8 (3)	C15—C16—O4—C18	13.0 (6)
N2—Cu1—Pr1—O3	4.6 (3)	C17—C16—O4—Pr1	6.4 (5)
O14—Cu1—Pr1—O3	98.87 (18)	C15—C16—O4—Pr1	−173.7 (4)
O3—Cu1—Pr1—O13	−123.2 (2)	O1—Pr1—O4—C16	−24.4 (3)
O1—Cu1—Pr1—O13	72.6 (2)	O3—Pr1—O4—C16	−5.8 (3)
N1—Cu1—Pr1—O13	68.0 (3)	O13—Pr1—O4—C16	70.5 (3)
N2—Cu1—Pr1—O13	−118.6 (3)	O7—Pr1—O4—C16	−138.5 (3)
O14—Cu1—Pr1—O13	−24.35 (15)	O11—Pr1—O4—C16	73.0 (3)
O3—Cu1—Pr1—O7	82.4 (2)	O5—Pr1—O4—C16	−87.4 (3)
O1—Cu1—Pr1—O7	−81.86 (19)	O10—Pr1—O4—C16	159.9 (3)
N1—Cu1—Pr1—O7	−86.5 (3)	O8—Pr1—O4—C16	146.3 (3)
N2—Cu1—Pr1—O7	87.0 (3)	O2—Pr1—O4—C16	−107.6 (3)
O14—Cu1—Pr1—O7	−178.77 (15)	Cu1—Pr1—O4—C16	−10.4 (3)
O3—Cu1—Pr1—O11	−73.46 (19)	O1—Pr1—O4—C18	148.4 (4)
O1—Cu1—Pr1—O11	122.31 (19)	O3—Pr1—O4—C18	167.0 (4)
N1—Cu1—Pr1—O11	117.7 (3)	O13—Pr1—O4—C18	−116.7 (4)
N2—Cu1—Pr1—O11	−68.8 (3)	O7—Pr1—O4—C18	34.2 (4)
O14—Cu1—Pr1—O11	25.40 (14)	O11—Pr1—O4—C18	−114.3 (4)
O3—Cu1—Pr1—O5	82.27 (19)	O5—Pr1—O4—C18	85.3 (4)
O1—Cu1—Pr1—O5	−81.96 (19)	O10—Pr1—O4—C18	−27.3 (4)
N1—Cu1—Pr1—O5	−86.6 (3)	O8—Pr1—O4—C18	−40.9 (4)
N2—Cu1—Pr1—O5	86.9 (3)	O2—Pr1—O4—C18	65.2 (4)
O14—Cu1—Pr1—O5	−178.87 (13)	Cu1—Pr1—O4—C18	162.4 (4)
O3—Cu1—Pr1—O10	−154.1 (3)	O6—N3—O5—Pr1	173.0 (6)
O1—Cu1—Pr1—O10	41.7 (3)	O7—N3—O5—Pr1	−6.6 (5)
N1—Cu1—Pr1—O10	37.0 (3)	O1—Pr1—O5—N3	151.2 (3)
N2—Cu1—Pr1—O10	−149.5 (3)	O3—Pr1—O5—N3	−143.8 (3)
O14—Cu1—Pr1—O10	−55.3 (2)	O13—Pr1—O5—N3	130.8 (4)
O3—Cu1—Pr1—O8	−41.0 (3)	O7—Pr1—O5—N3	3.9 (3)
O1—Cu1—Pr1—O8	154.7 (3)	O11—Pr1—O5—N3	−122.4 (4)
N1—Cu1—Pr1—O8	150.1 (3)	O10—Pr1—O5—N3	30.6 (4)
N2—Cu1—Pr1—O8	−36.4 (3)	O8—Pr1—O5—N3	−23.7 (4)
O14—Cu1—Pr1—O8	57.8 (2)	O2—Pr1—O5—N3	89.3 (3)
O3—Cu1—Pr1—O2	160.48 (17)	O4—Pr1—O5—N3	−81.4 (3)
O1—Cu1—Pr1—O2	−3.74 (17)	Cu1—Pr1—O5—N3	−176.2 (3)
N1—Cu1—Pr1—O2	−8.4 (3)	O6—N3—O7—Pr1	−172.9 (5)
N2—Cu1—Pr1—O2	165.1 (3)	O5—N3—O7—Pr1	6.6 (5)
O14—Cu1—Pr1—O2	−100.65 (12)	O1—Pr1—O7—N3	−39.8 (3)
O3—Cu1—Pr1—O4	7.59 (17)	O3—Pr1—O7—N3	31.9 (3)
O1—Cu1—Pr1—O4	−156.63 (17)	O13—Pr1—O7—N3	−139.4 (3)
N1—Cu1—Pr1—O4	−161.2 (3)	O11—Pr1—O7—N3	134.8 (3)
N2—Cu1—Pr1—O4	12.2 (3)	O5—Pr1—O7—N3	−3.8 (3)
O14—Cu1—Pr1—O4	106.45 (11)	O10—Pr1—O7—N3	−158.7 (3)
C6—C7—N1—C8	151.3 (10)	O8—Pr1—O7—N3	150.3 (3)
C6—C7—N1—Cu1	2.2 (10)	O2—Pr1—O7—N3	−88.2 (3)
O1—Cu1—N1—C7	−5.6 (6)	O4—Pr1—O7—N3	77.9 (3)
N2—Cu1—N1—C7	−178.1 (7)	Cu1—Pr1—O7—N3	−3.9 (3)
O14—Cu1—N1—C7	90.1 (6)	O9—N4—O8—Pr1	−177.8 (6)
Pr1—Cu1—N1—C7	−2.5 (8)	O10—N4—O8—Pr1	3.7 (6)
O1—Cu1—N1—C8	−156.8 (9)	O1—Pr1—O8—N4	−57.1 (7)
N2—Cu1—N1—C8	30.7 (9)	O3—Pr1—O8—N4	−169.7 (3)
O14—Cu1—N1—C8	−61.1 (9)	O13—Pr1—O8—N4	−66.1 (4)
Pr1—Cu1—N1—C8	−153.7 (9)	O7—Pr1—O8—N4	78.8 (4)
C12—C11—N2—C10	−157.0 (9)	O11—Pr1—O8—N4	−111.2 (4)
C12—C11—N2—Cu1	1.6 (10)	O5—Pr1—O8—N4	100.6 (4)
O3—Cu1—N2—C11	−3.6 (6)	O10—Pr1—O8—N4	−2.2 (3)
N1—Cu1—N2—C11	168.9 (6)	O2—Pr1—O8—N4	10.6 (4)
O14—Cu1—N2—C11	−100.7 (6)	O4—Pr1—O8—N4	161.4 (4)
Pr1—Cu1—N2—C11	−6.7 (7)	Cu1—Pr1—O8—N4	−145.4 (3)
O3—Cu1—N2—C10	156.2 (8)	O9—N4—O10—Pr1	177.7 (6)
N1—Cu1—N2—C10	−31.4 (8)	O8—N4—O10—Pr1	−3.7 (6)
O14—Cu1—N2—C10	59.0 (8)	O1—Pr1—O10—N4	169.4 (3)
Pr1—Cu1—N2—C10	153.1 (8)	O3—Pr1—O10—N4	54.6 (7)
C2—C1—O1—Cu1	−178.7 (3)	O13—Pr1—O10—N4	112.4 (4)
C6—C1—O1—Cu1	−0.4 (6)	O7—Pr1—O10—N4	−79.7 (4)
C2—C1—O1—Pr1	10.9 (6)	O11—Pr1—O10—N4	65.8 (4)
C6—C1—O1—Pr1	−170.8 (3)	O5—Pr1—O10—N4	−100.9 (4)
O3—Cu1—O1—C1	177.2 (4)	O8—Pr1—O10—N4	2.2 (3)
N1—Cu1—O1—C1	4.7 (4)	O2—Pr1—O10—N4	−165.4 (4)
O14—Cu1—O1—C1	−86.4 (4)	O4—Pr1—O10—N4	−15.0 (4)
Pr1—Cu1—O1—C1	−172.2 (4)	Cu1—Pr1—O10—N4	144.6 (3)
O3—Cu1—O1—Pr1	−10.62 (15)	O12—N5—O11—Pr1	−179.4 (6)
N1—Cu1—O1—Pr1	176.9 (2)	O13—N5—O11—Pr1	2.0 (6)
O14—Cu1—O1—Pr1	85.78 (15)	O1—Pr1—O11—N5	−59.3 (4)
O3—Pr1—O1—C1	−178.9 (4)	O3—Pr1—O11—N5	−117.5 (4)
O13—Pr1—O1—C1	71.1 (4)	O13—Pr1—O11—N5	−1.2 (4)
O7—Pr1—O1—C1	−70.3 (4)	O7—Pr1—O11—N5	125.6 (4)
O11—Pr1—O1—C1	113.1 (4)	O5—Pr1—O11—N5	−138.8 (4)
O5—Pr1—O1—C1	−97.8 (4)	O10—Pr1—O11—N5	65.2 (4)
O10—Pr1—O1—C1	14.6 (4)	O8—Pr1—O11—N5	110.0 (4)
O8—Pr1—O1—C1	61.8 (7)	O2—Pr1—O11—N5	1.6 (5)
O2—Pr1—O1—C1	−12.4 (3)	O4—Pr1—O11—N5	−178.7 (4)
O4—Pr1—O1—C1	−160.8 (3)	Cu1—Pr1—O11—N5	−86.2 (4)
Cu1—Pr1—O1—C1	171.9 (4)	O12—N5—O13—Pr1	179.4 (6)
O3—Pr1—O1—Cu1	9.23 (13)	O11—N5—O13—Pr1	−2.0 (6)
O13—Pr1—O1—Cu1	−100.80 (19)	O1—Pr1—O13—N5	121.0 (4)
O7—Pr1—O1—Cu1	117.86 (15)	O3—Pr1—O13—N5	63.1 (4)
O11—Pr1—O1—Cu1	−58.74 (19)	O7—Pr1—O13—N5	−124.6 (4)
O5—Pr1—O1—Cu1	90.34 (17)	O11—Pr1—O13—N5	1.2 (4)
O10—Pr1—O1—Cu1	−157.25 (15)	O5—Pr1—O13—N5	141.5 (4)
O8—Pr1—O1—Cu1	−110.1 (5)	O10—Pr1—O13—N5	−105.5 (4)
O2—Pr1—O1—Cu1	175.69 (19)	O8—Pr1—O13—N5	−61.1 (4)
O4—Pr1—O1—Cu1	27.34 (19)	O2—Pr1—O13—N5	−176.5 (4)
C3—C2—O2—C19	−19.1 (7)	O4—Pr1—O13—N5	4.4 (5)
C1—C2—O2—C19	161.5 (5)	Cu1—Pr1—O13—N5	89.6 (4)
C3—C2—O2—Pr1	166.4 (4)	C22—C21—O14—Cu1	−171.4 (5)
C1—C2—O2—Pr1	−13.0 (5)	C20—C21—O14—Cu1	8.2 (10)
O1—Pr1—O2—C2	12.7 (3)	O3—Cu1—O14—C21	−52.6 (6)
O3—Pr1—O2—C2	26.8 (3)	O1—Cu1—O14—C21	−136.6 (6)
O13—Pr1—O2—C2	−66.4 (3)	N1—Cu1—O14—C21	128.0 (6)
O7—Pr1—O2—C2	142.7 (3)	N2—Cu1—O14—C21	43.1 (6)
O11—Pr1—O2—C2	−68.6 (4)	Pr1—Cu1—O14—C21	−94.7 (6)
O5—Pr1—O2—C2	92.2 (3)	C7—N1—C8—C9	65 (2)
O10—Pr1—O2—C2	−143.2 (3)	Cu1—N1—C8—C9	−140.9 (18)
O8—Pr1—O2—C2	−153.4 (3)	C7—N1—C8—C10	−178.0 (11)
O4—Pr1—O2—C2	112.1 (3)	Cu1—N1—C8—C10	−24.4 (16)
Cu1—Pr1—O2—C2	15.0 (3)	C11—N2—C10—C8	−175.3 (11)
O1—Pr1—O2—C19	−161.3 (5)	Cu1—N2—C10—C8	23.4 (15)
O3—Pr1—O2—C19	−147.2 (4)	C9—C8—C10—N2	121.7 (18)
O13—Pr1—O2—C19	119.5 (4)	N1—C8—C10—N2	0.8 (18)
O7—Pr1—O2—C19	−31.3 (4)

Experimental details

Crystal data
Chemical formula	[CuPr(C₁₉H₂₀N₂O₄)(NO₃)₃(C₃H₆O)]
M_r	784.64
Crystal system, space group	Monoclinic, P2₁/c
Temperature (K)	295
a, b, c (Å)	9.879 (3), 18.887 (7), 15.676 (5)
β (°)	95.376 (14)
V (Å³)	2912.2 (16)
Z	4
Radiation type	Mo Kα
µ (mm⁻¹)	2.46
Crystal size (mm)	0.39 × 0.25 × 0.24

Data collection
Diffractometer	Rigaku RAXIS-RAPID
Absorption correction	Multi-scan (ABSCOR; Higashi, 1995)
T_min, T_max	0.447, 0.567
No. of measured, independent and observed [I > 2σ(I)] reflections	25560, 6654, 5376
R_int	0.033
(sin θ/λ)_max (Å⁻¹)	0.649

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.037, 0.110, 1.11
No. of reflections	6654
No. of parameters	421
No. of restraints	56
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	1.01, −0.75

Computer programs: RAPID-AUTO (Rigaku, 1998), RAPID-AUTO, CrystalStructure (Rigaku/MSC, 2002), SHELXS97 (Sheldrick, 1997a), SHELXL97 (Sheldrick, 1997a), SHELXTL (Sheldrick, 1997b), SHELXL97.

Selected bond lengths (Å) top

Cu1—O3	1.897 (3)	Pr1—O7	2.528 (4)
Cu1—O1	1.905 (3)	Pr1—O11	2.538 (4)
Cu1—N1	1.907 (5)	Pr1—O5	2.559 (4)
Cu1—N2	1.915 (4)	Pr1—O10	2.571 (4)
Cu1—O14	2.594 (4)	Pr1—O8	2.588 (4)
Pr1—O1	2.427 (3)	Pr1—O2	2.658 (3)
Pr1—O3	2.436 (3)	Pr1—O4	2.661 (3)
Pr1—O13	2.518 (5)

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