(μ-3,5-Diphenyl­pyrazolato-κ²N:N′)bis­(2,2′:6′,2′′-terpyridyl-κ³N)palladium(II) trinitrate

In the title compound, [Pd₂(C₁₅H₂₂N₂)(C₁₅H₁₁N₃)₂](NO₃)₃, two planar Pd(terpy) units (terpy is 2,2′:6′,2′′-terpyrid­yl) are bridged by a 3,5-diphenyl­pyrazolate ligand in an exodentate fashion, which results a clip-like cavity between the two Pd(terpy) planes. A nitrate anion is held in the cavity by an anion–π inter­action. The cation has crystallographic twofold rotation symmetry.

Key indicators

• Single-crystal X-ray study
• T = 291 K
• Mean [sigma](C-C) = 0.014 Å
• Disorder in solvent or counterion
• R factor = 0.051
• wR factor = 0.157
• Data-to-parameter ratio = 13.2

checkCIF/PLATON results

No syntax errors found



Alert level B
PLAT430_ALERT_2_B Short Inter D...A Contact  O5     ..  N2      ..       2.72 Ang.

Alert level C
PLAT029_ALERT_3_C _diffrn_measured_fraction_theta_full Low .......       0.97
PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ ....          ?
PLAT094_ALERT_2_C Ratio of Maximum / Minimum Residual Density ....       2.39
PLAT244_ALERT_4_C Low   'Solvent' Ueq as Compared to Neighbors for         N5
PLAT244_ALERT_4_C Low   'Solvent' Ueq as Compared to Neighbors for         N6
PLAT302_ALERT_4_C Anion/Solvent Disorder .........................      25.00 Perc.
PLAT342_ALERT_3_C Low Bond Precision on C-C bonds (x 1000) Ang ...         14
PLAT432_ALERT_2_C Short Inter X...Y Contact  O1     ..  C10     ..       3.01 Ang.
PLAT432_ALERT_2_C Short Inter X...Y Contact  O3     ..  C7      ..       2.99 Ang.
PLAT432_ALERT_2_C Short Inter X...Y Contact  O5     ..  C10     ..       2.93 Ang.

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

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

---

Computing details

Data collection: RAPID-AUTO (Rigaku, 1999); cell refinement: RAPID-AUTO; data reduction: RAPID-AUTO; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Sheldrick, 2001); software used to prepare material for publication: SHELXTL.

(µ-3,5-Diphenylpyrazolato-κ²N:N')bis(2,2':6',2''-terpyridyl- κ³N)palladium(II) trinitrate

Crystal data

[Pd2(C15H22N2)(C15H11N3)2](NO3)3	F(000) = 2176
Mr = 1084.62	Dx = 1.686 Mg m^−3
Monoclinic, C2/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -C 2yc	Cell parameters from 4879 reflections
a = 25.917 (5) Å	θ = 1.5–26.0°
b = 12.191 (2) Å	µ = 0.91 mm^−1
c = 16.116 (3) Å	T = 291 K
β = 122.96 (3)°	Block, yellow
V = 4272 (2) Å^3	0.25 × 0.18 × 0.15 mm
Z = 4

Data collection

Rigaku R-AXIS RAPID IP diffractometer	4070 independent reflections
Radiation source: Rotating Anode	3366 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.045
Oscillation scans	θmax = 26.0°, θmin = 1.9°
Absorption correction: empirical (using intensity measurements) (ABSCOR; Higashi, 1995)	h = −31→31
Tmin = 0.804, Tmax = 0.875	k = −15→15
7944 measured reflections	l = −19→19

Refinement

Refinement on F^2	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F^2 > 2σ(F^2)] = 0.051	Hydrogen site location: inferred from neighbouring sites
wR(F^2) = 0.157	H-atom parameters constrained
S = 1.07	w = 1/[σ^2(Fo^2) + (0.026P)^2] where P = (Fo^2 + 2Fc^2)/3
4070 reflections	(Δ/σ)max = 0.001
309 parameters	Δρmax = 1.19 e Å^−3
19 restraints	Δρmin = −0.50 e Å^−3

Special details

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 (Ų)

	x	y	z	Uiso*/Ueq	Occ. (<1)
Pd1	0.57057 (2)	0.79833 (4)	0.26226 (4)	0.0345 (2)
O1	0.6589 (4)	0.8024 (6)	0.1476 (7)	0.088 (2)
O2	0.6063 (3)	0.9279 (6)	0.0400 (6)	0.080 (2)
O3	0.7020 (4)	0.9180 (7)	0.1066 (8)	0.103 (3)
O4	0.5214 (9)	0.4130 (12)	0.2873 (13)	0.141 (5)	0.50
O5	0.5001 (9)	0.5779 (13)	0.2748 (12)	0.141 (5)	0.50
O6	0.5705 (8)	0.5150 (15)	0.4131 (10)	0.141 (5)	0.50
N1	0.6339 (3)	0.7751 (5)	0.4084 (5)	0.0433 (17)
N2	0.6052 (3)	0.6636 (5)	0.2528 (5)	0.0429 (15)
N3	0.5228 (3)	0.7846 (5)	0.1138 (5)	0.0443 (16)
N4	0.5310 (3)	0.9373 (4)	0.2657 (4)	0.0341 (13)
N5	0.6552 (4)	0.8857 (6)	0.0979 (6)	0.0530 (19)
N6	0.5309 (6)	0.5052 (11)	0.3264 (10)	0.098 (6)	0.50
C1	0.6506 (3)	0.8393 (7)	0.4855 (6)	0.0441 (19)
H1	0.6324	0.9080	0.4744	0.053*
C2	0.6935 (4)	0.8089 (8)	0.5804 (7)	0.057 (2)
H2	0.7026	0.8567	0.6316	0.069*
C3	0.7234 (5)	0.7106 (8)	0.6026 (7)	0.068 (3)
H3	0.7507	0.6878	0.6674	0.081*
C4	0.7105 (4)	0.6487 (7)	0.5242 (7)	0.061 (3)
H4	0.7333	0.5851	0.5354	0.073*
C5	0.6640 (4)	0.6762 (5)	0.4252 (6)	0.0423 (19)
C6	0.6512 (3)	0.6177 (7)	0.3368 (6)	0.0437 (19)
C7	0.6774 (4)	0.5217 (7)	0.3301 (7)	0.054 (2)
H7	0.7082	0.4868	0.3871	0.065*
C8	0.6576 (5)	0.4783 (7)	0.2383 (7)	0.062 (3)
H8	0.6766	0.4153	0.2348	0.075*
C9	0.6108 (4)	0.5247 (7)	0.1515 (8)	0.062 (3)
H9	0.5971	0.4944	0.0899	0.074*
C10	0.5850 (4)	0.6223 (6)	0.1631 (6)	0.0425 (18)
C11	0.5379 (4)	0.6916 (7)	0.0847 (7)	0.052 (2)
C12	0.5096 (5)	0.6714 (8)	−0.0187 (7)	0.068 (3)
H12	0.5204	0.6095	−0.0396	0.081*
C13	0.4662 (4)	0.7432 (9)	−0.0877 (7)	0.062 (2)
H13	0.4458	0.7280	−0.1550	0.074*
C14	0.4543 (4)	0.8348 (8)	−0.0557 (7)	0.056 (2)
H14	0.4263	0.8856	−0.1009	0.067*
C15	0.4845 (4)	0.8547 (7)	0.0478 (7)	0.047 (2)
H15	0.4766	0.9199	0.0689	0.057*
C16	0.5000	1.1107 (9)	0.2500	0.036 (2)
H16	0.5000	1.1869	0.2500	0.043*
C17	0.5501 (3)	1.0417 (5)	0.2761 (6)	0.0333 (16)
C18	0.6124 (3)	1.0742 (6)	0.3052 (6)	0.0395 (18)
C19	0.6449 (4)	1.0168 (7)	0.2758 (7)	0.047 (2)
H19	0.6297	0.9520	0.2400	0.057*
C20	0.7026 (4)	1.0597 (8)	0.3018 (8)	0.057 (2)
H20	0.7257	1.0206	0.2836	0.068*
C21	0.7244 (4)	1.1498 (10)	0.3491 (7)	0.063 (3)
H21	0.7626	1.1745	0.3645	0.075*
C22	0.6911 (4)	1.2112 (8)	0.3779 (7)	0.069 (3)
H22	0.7067	1.2774	0.4110	0.082*
C23	0.6358 (5)	1.1737 (8)	0.3572 (7)	0.064 (3)
H23	0.6138	1.2134	0.3772	0.077*

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Pd1	0.0305 (3)	0.0271 (3)	0.0382 (4)	0.0021 (2)	0.0138 (3)	0.0018 (3)
O1	0.081 (5)	0.089 (6)	0.109 (7)	0.027 (4)	0.061 (5)	0.021 (5)
O2	0.059 (4)	0.079 (5)	0.083 (5)	0.017 (4)	0.027 (4)	0.025 (4)
O3	0.086 (6)	0.085 (6)	0.158 (9)	−0.022 (5)	0.080 (6)	−0.017 (6)
O4	0.166 (9)	0.142 (7)	0.133 (9)	−0.032 (7)	0.092 (7)	0.010 (7)
O5	0.166 (9)	0.142 (7)	0.133 (9)	−0.032 (7)	0.092 (7)	0.010 (7)
O6	0.166 (9)	0.142 (7)	0.133 (9)	−0.032 (7)	0.092 (7)	0.010 (7)
N1	0.032 (3)	0.027 (3)	0.051 (4)	0.006 (3)	0.009 (3)	0.003 (3)
N2	0.050 (4)	0.031 (3)	0.042 (4)	0.002 (3)	0.021 (3)	0.009 (3)
N3	0.032 (3)	0.043 (4)	0.054 (4)	0.007 (3)	0.021 (3)	−0.003 (3)
N4	0.039 (3)	0.025 (3)	0.033 (3)	0.000 (3)	0.015 (3)	−0.003 (3)
N5	0.056 (5)	0.038 (4)	0.077 (6)	0.009 (4)	0.044 (4)	0.014 (4)
N6	0.086 (9)	0.076 (9)	0.150 (11)	−0.030 (7)	0.075 (8)	0.032 (8)
C1	0.041 (4)	0.033 (4)	0.047 (5)	0.005 (3)	0.017 (4)	−0.001 (4)
C2	0.044 (5)	0.069 (6)	0.038 (5)	0.013 (4)	0.009 (4)	−0.006 (5)
C3	0.072 (7)	0.085 (7)	0.025 (4)	0.015 (6)	0.012 (4)	0.006 (5)
C4	0.053 (5)	0.041 (5)	0.056 (6)	0.015 (4)	0.008 (4)	0.016 (5)
C5	0.064 (5)	0.021 (3)	0.032 (4)	0.012 (3)	0.020 (4)	0.009 (3)
C6	0.039 (4)	0.047 (4)	0.039 (4)	0.008 (4)	0.017 (4)	0.006 (4)
C7	0.054 (5)	0.037 (4)	0.050 (6)	0.011 (4)	0.014 (4)	0.003 (4)
C8	0.073 (6)	0.040 (4)	0.060 (6)	0.029 (5)	0.028 (5)	0.012 (5)
C9	0.079 (7)	0.050 (5)	0.078 (7)	0.015 (5)	0.057 (6)	0.001 (5)
C10	0.059 (5)	0.027 (4)	0.042 (4)	−0.003 (4)	0.028 (4)	−0.001 (3)
C11	0.037 (4)	0.048 (5)	0.054 (5)	0.004 (4)	0.014 (4)	0.013 (4)
C12	0.071 (7)	0.063 (6)	0.057 (6)	0.016 (5)	0.027 (5)	−0.012 (5)
C13	0.062 (6)	0.070 (6)	0.042 (5)	0.007 (5)	0.020 (5)	0.001 (5)
C14	0.045 (5)	0.061 (5)	0.049 (5)	0.002 (4)	0.017 (4)	0.022 (5)
C15	0.042 (4)	0.042 (4)	0.059 (5)	0.009 (4)	0.028 (4)	0.013 (4)
C16	0.038 (5)	0.039 (5)	0.021 (5)	0.000	0.010 (4)	0.000
C17	0.031 (4)	0.022 (3)	0.039 (4)	−0.009 (3)	0.014 (3)	−0.004 (3)
C18	0.049 (5)	0.025 (3)	0.040 (4)	−0.008 (3)	0.021 (4)	0.006 (3)
C19	0.042 (5)	0.042 (5)	0.060 (6)	−0.001 (4)	0.030 (4)	0.007 (4)
C20	0.049 (5)	0.058 (5)	0.068 (6)	0.001 (5)	0.036 (5)	0.016 (5)
C21	0.043 (5)	0.088 (7)	0.051 (6)	−0.003 (5)	0.022 (5)	0.023 (6)
C22	0.054 (6)	0.073 (6)	0.040 (5)	−0.034 (5)	0.000 (4)	0.011 (5)
C23	0.071 (7)	0.059 (6)	0.052 (6)	−0.015 (5)	0.026 (5)	−0.007 (5)

Geometric parameters (Å, º)

Pd1—N2	1.917 (7)	C7—H7	0.9300
Pd1—N4	1.997 (5)	C8—C9	1.378 (13)
Pd1—N3	2.015 (7)	C8—H8	0.9300
Pd1—N1	2.029 (7)	C9—C10	1.427 (11)
O1—N5	1.265 (10)	C9—H9	0.9300
O2—N5	1.205 (9)	C10—C11	1.457 (11)
O3—N5	1.208 (9)	C11—C12	1.430 (13)
O4—N6	1.246 (9)	C12—C13	1.380 (13)
O5—N6	1.180 (9)	C12—H12	0.9300
O6—N6	1.208 (9)	C13—C14	1.335 (14)
N1—C1	1.326 (11)	C13—H13	0.9300
N1—C5	1.381 (9)	C14—C15	1.426 (13)
N2—C10	1.340 (10)	C14—H14	0.9300
N2—C6	1.346 (10)	C15—H15	0.9300
N3—C15	1.303 (10)	C16—C17^i	1.404 (10)
N3—C11	1.362 (10)	C16—C17	1.404 (10)
N4—C17	1.343 (8)	C16—H16	0.9300
N4—N4^i	1.40 (1)	C17—C18	1.471 (10)
C1—C2	1.364 (12)	C18—C19	1.363 (11)
C1—H1	0.9300	C18—C23	1.410 (11)
C2—C3	1.365 (12)	C19—C20	1.415 (11)
C2—H2	0.9300	C19—H19	0.9300
C3—C4	1.349 (13)	C20—C21	1.280 (13)
C3—H3	0.9300	C20—H20	0.9300
C4—C5	1.421 (11)	C21—C22	1.397 (15)
C4—H4	0.9300	C21—H21	0.9300
C5—C6	1.460 (11)	C22—C23	1.362 (13)
C6—C7	1.388 (11)	C22—H22	0.9300
C7—C8	1.380 (13)	C23—H23	0.9300
N2—Pd1—N4	177.3 (3)	C7—C8—H8	118.7
N2—Pd1—N3	81.2 (3)	C8—C9—C10	115.2 (9)
N4—Pd1—N3	96.4 (2)	C8—C9—H9	122.4
N2—Pd1—N1	81.6 (3)	C10—C9—H9	122.4
N4—Pd1—N1	100.9 (2)	N2—C10—C9	121.2 (8)
N3—Pd1—N1	162.4 (3)	N2—C10—C11	111.7 (7)
C1—N1—C5	118.1 (7)	C9—C10—C11	127.0 (8)
C1—N1—Pd1	130.6 (5)	N3—C11—C12	118.9 (8)
C5—N1—Pd1	111.3 (5)	N3—C11—C10	116.5 (8)
C10—N2—C6	122.8 (7)	C12—C11—C10	124.6 (8)
C10—N2—Pd1	118.9 (5)	C13—C12—C11	120.4 (9)
C6—N2—Pd1	118.2 (6)	C13—C12—H12	119.8
C15—N3—C11	119.9 (8)	C11—C12—H12	119.8
C15—N3—Pd1	128.1 (6)	C14—C13—C12	118.5 (9)
C11—N3—Pd1	111.8 (6)	C14—C13—H13	120.8
C17—N4—N4^i	108.5 (4)	C12—C13—H13	120.8
C17—N4—Pd1	130.4 (5)	C13—C14—C15	120.0 (8)
N4^i—N4—Pd1	119.8 (2)	C13—C14—H14	120.0
O2—N5—O3	121.1 (8)	C15—C14—H14	120.0
O2—N5—O1	121.3 (8)	N3—C15—C14	122.2 (8)
O3—N5—O1	117.5 (8)	N3—C15—H15	118.9
O5—N6—O6	124.3 (10)	C14—C15—H15	118.9
O5—N6—O4	116.7 (10)	C17^i—C16—C17	106.5 (9)
O6—N6—O4	118.9 (10)	C17^i—C16—H16	126.7
N1—C1—C2	122.8 (8)	C17—C16—H16	126.7
N1—C1—H1	118.6	N4—C17—C16	108.2 (6)
C2—C1—H1	118.6	N4—C17—C18	124.1 (6)
C1—C2—C3	122.2 (9)	C16—C17—C18	127.6 (6)
C1—C2—H2	118.9	C19—C18—C23	120.0 (8)
C3—C2—H2	118.9	C19—C18—C17	122.0 (7)
C4—C3—C2	115.4 (8)	C23—C18—C17	117.7 (8)
C4—C3—H3	122.3	C18—C19—C20	117.4 (8)
C2—C3—H3	122.3	C18—C19—H19	121.3
C3—C4—C5	123.1 (8)	C20—C19—H19	121.3
C3—C4—H4	118.4	C21—C20—C19	123.2 (9)
C5—C4—H4	118.4	C21—C20—H20	118.4
N1—C5—C4	118.0 (7)	C19—C20—H20	118.4
N1—C5—C6	115.6 (7)	C20—C21—C22	120.3 (9)
C4—C5—C6	125.7 (7)	C20—C21—H21	119.8
N2—C6—C7	118.4 (8)	C22—C21—H21	119.8
N2—C6—C5	112.7 (7)	C23—C22—C21	119.7 (10)
C7—C6—C5	128.8 (8)	C23—C22—H22	120.1
C8—C7—C6	119.6 (8)	C21—C22—H22	120.1
C8—C7—H7	120.2	C22—C23—C18	119.3 (10)
C6—C7—H7	120.2	C22—C23—H23	120.3
C9—C8—C7	122.6 (8)	C18—C23—H23	120.3
C9—C8—H8	118.7
N2—Pd1—N1—C1	173.5 (8)	C6—C7—C8—C9	−2.1 (15)
N4—Pd1—N1—C1	−7.4 (8)	C7—C8—C9—C10	1.2 (14)
N3—Pd1—N1—C1	161.1 (8)	C6—N2—C10—C9	1.1 (12)
N2—Pd1—N1—C5	−4.4 (6)	Pd1—N2—C10—C9	177.5 (6)
N4—Pd1—N1—C5	174.6 (5)	C6—N2—C10—C11	−176.2 (7)
N3—Pd1—N1—C5	−16.8 (12)	Pd1—N2—C10—C11	0.2 (9)
N3—Pd1—N2—C10	−0.7 (6)	C8—C9—C10—N2	−0.7 (12)
N1—Pd1—N2—C10	−176.9 (6)	C8—C9—C10—C11	176.1 (8)
N3—Pd1—N2—C6	175.9 (6)	C15—N3—C11—C12	−1.9 (12)
N1—Pd1—N2—C6	−0.4 (6)	Pd1—N3—C11—C12	−177.9 (7)
N2—Pd1—N3—C15	−174.6 (7)	C15—N3—C11—C10	174.8 (7)
N4—Pd1—N3—C15	6.5 (7)	Pd1—N3—C11—C10	−1.2 (9)
N1—Pd1—N3—C15	−162.1 (8)	N2—C10—C11—N3	0.7 (11)
N2—Pd1—N3—C11	1.0 (6)	C9—C10—C11—N3	−176.4 (8)
N4—Pd1—N3—C11	−177.9 (5)	N2—C10—C11—C12	177.2 (8)
N1—Pd1—N3—C11	13.5 (12)	C9—C10—C11—C12	0.1 (15)
N3—Pd1—N4—C17	−97.7 (7)	N3—C11—C12—C13	−2.1 (15)
N1—Pd1—N4—C17	78.8 (7)	C10—C11—C12—C13	−178.5 (9)
N3—Pd1—N4—N4^i	67.7 (7)	C11—C12—C13—C14	4.1 (16)
N1—Pd1—N4—N4^i	−115.8 (7)	C12—C13—C14—C15	−2.2 (14)
C5—N1—C1—C2	−4.0 (13)	C11—N3—C15—C14	3.9 (12)
Pd1—N1—C1—C2	178.2 (7)	Pd1—N3—C15—C14	179.2 (6)
N1—C1—C2—C3	1.6 (15)	C13—C14—C15—N3	−1.9 (13)
C1—C2—C3—C4	4.0 (16)	N4^i—N4—C17—C16	−0.8 (9)
C2—C3—C4—C5	−7.3 (16)	Pd1—N4—C17—C16	165.8 (4)
C1—N1—C5—C4	0.8 (12)	N4^i—N4—C17—C18	−178.0 (7)
Pd1—N1—C5—C4	179.0 (7)	Pd1—N4—C17—C18	−11.3 (11)
C1—N1—C5—C6	−170.0 (7)	C17^i—C16—C17—N4	0.3 (4)
Pd1—N1—C5—C6	8.2 (9)	C17^i—C16—C17—C18	177.3 (9)
C3—C4—C5—N1	5.1 (15)	N4—C17—C18—C19	35.3 (12)
C3—C4—C5—C6	174.8 (10)	C16—C17—C18—C19	−141.2 (7)
C10—N2—C6—C7	−1.9 (12)	N4—C17—C18—C23	−150.8 (8)
Pd1—N2—C6—C7	−178.3 (6)	C16—C17—C18—C23	32.7 (11)
C10—N2—C6—C5	−178.8 (7)	C23—C18—C19—C20	1.6 (12)
Pd1—N2—C6—C5	4.8 (9)	C17—C18—C19—C20	175.4 (7)
N1—C5—C6—N2	−8.7 (10)	C18—C19—C20—C21	−1.5 (13)
C4—C5—C6—N2	−178.7 (8)	C19—C20—C21—C22	0.0 (14)
N1—C5—C6—C7	174.9 (9)	C20—C21—C22—C23	1.4 (14)
C4—C5—C6—C7	4.9 (15)	C21—C22—C23—C18	−1.2 (14)
N2—C6—C7—C8	2.3 (13)	C19—C18—C23—C22	−0.3 (13)
C5—C6—C7—C8	178.6 (9)	C17—C18—C23—C22	−174.4 (8)

Symmetry code: (i) −x+1, y, −z+1/2.

Hydrogen-bond geometry (Å, º)

D—H···A	D—H	H···A	D···A	D—H···A
C1—H1···O2^ii	0.93	2.52	3.35 (1)	149
C7—H7···O3^iii	0.93	2.42	2.99 (2)	119
C9—H9···O6^iv	0.93	2.54	3.42 (2)	158
C12—H12···O6^iv	0.93	2.38	3.28 (2)	164

Symmetry codes: (ii) x, −y+2, z+1/2; (iii) −x+3/2, y−1/2, −z+1/2; (iv) x, −y+1, z−1/2.