A zigzag-type one-dimensional coordination polymer formed by (2,2-di­methyl-1,3-propane­di­amine)­bis­(iso­nico­tin­ato)­platinum(II) and copper nitrate

The title compound, catena-poly­[[[tri­aqua-2[kappa]³O-(2,2-dimethyl-1,3-propane­di­am­ine)-1[kappa]²N,N'-[mu]-isonicotinato-1:2[kappa]²N:O-copper(II)­plati­num(II)]-[mu]-isonicotinato-2:1'[kappa]²O:N] dinitrate], {[CuPt(C₆H₄NO₂)₂(C₅H₁₄N₂)(H₂O)₃](NO₃)₂}_n, obtain­ed from equimolar (dmpda)Pt^II(isonic)₂ (where dmpda is 2,2-di­methyl-1,3-propane­di­amine and isonic is isonicotinate) and copper(II) nitrate, has been found to be a one-dimensional coordination polymer of the zigzag-type.

S1. Comment

The title compound, (I), has been found to be a one-dimensional coordination polymer of the zigzag-type. The polymer has repeat units in which the Cu—Pt—Cu' angle is 64.9°. One Cu atom links two platinum complex molecules through coordination to two carboxylate groups from the two platinum complex units. Three water molecules are also bound to the Cu atom forming a square-pyramidal geometry. The axial water molecule has a bond to the Cu atom of 2.306 (4) Å, whereas carboxylate O atoms and two equatorial water molecules have distances from copper in the range 1.912 (4)–1.988 (5) Å, which is similar to the pattern in other copper compounds (Shields et al., 1972). The structural properties of the platinum complex moiety, (dmpda)Pt(isonic)₂, are similar to those of the starting platinum complex, whose structure was previously reported (Song et al., 1999).

S2. Experimental

Equimolar (dmpda)Pt(isonic)₂ (1.0 g, 1.85 mmol) and Cu(NO₃)₂·3H₂O (0.45 g, 1.85 mmol) were dissolved in water (10 ml) and acetone (5 ml) was added to the solution. After two weeks at room temperature, blue block-shaped crystals had formed and were filtered off and washed with cold water and acetone.

S3. Refinement

Water atoms were not located; others were included in the structure-factor calculations using a riding model. The largest difference map features lie close to the Pt atom.

Computing details

Data collection: CAD-4-VAX (Enraf-Nonius, 1981); cell refinement: CAD-4-VAX; data reduction: SDP (Frenz, 1985); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); software used to prepare material for publication: SHELXL97.

(I)

Crystal data

[CuPt(C6H4NO2)2(C5H14N2)(H2O)3](NO3)2	F(000) = 1612
Mr = 819.12	Dx = 1.957 Mg m^−3
Monoclinic, P21/n	Mo Kα radiation, λ = 0.71073 Å
a = 10.105 (3) Å	Cell parameters from 25 reflections
b = 18.133 (3) Å	θ = 9.4–14.2°
c = 15.590 (5) Å	µ = 5.87 mm^−1
β = 103.29 (2)°	T = 293 K
V = 2780.1 (12) Å^3	Block, blue
Z = 4	0.55 × 0.40 × 0.35 mm

Data collection

Enraf-Nonius CAD-4 diffractometer	4175 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tube	Rint = 0.035
Graphite monochromator	θmax = 25.0°, θmin = 1.8°
ω/2θ scans	h = 0→11
Absorption correction: ψ scan (North et al., 1968)	k = −21→21
Tmin = 0.058, Tmax = 0.128	l = −18→18
6863 measured reflections	3 standard reflections every 120 min
4819 independent reflections	intensity decay: 9.6%

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)] = 0.034	Hydrogen site location: inferred from neighbouring sites
wR(F^2) = 0.091	H-atom parameters constrained
S = 1.07	w = 1/[σ^2(Fo^2) + (0.0497P)^2 + 7.8145P] where P = (Fo^2 + 2Fc^2)/3
4819 reflections	(Δ/σ)max = 0.011
361 parameters	Δρmax = 2.34 e Å^−3
0 restraints	Δρmin = −1.29 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
Pt	0.72126 (2)	0.788103 (11)	0.956049 (13)	0.02456 (9)
Cu	0.28860 (7)	0.98180 (4)	1.33338 (5)	0.02985 (17)
O1	0.3289 (4)	0.5315 (2)	1.1042 (3)	0.0383 (10)
O2	0.2006 (5)	0.5370 (3)	0.9669 (3)	0.0484 (13)
O3	0.3959 (5)	0.9309 (2)	1.2660 (3)	0.0361 (10)
O4	0.2976 (6)	1.0010 (3)	1.1531 (4)	0.0647 (16)
O5	0.1403 (5)	0.9089 (2)	1.2935 (3)	0.0394 (10)
O6	0.4161 (5)	1.0662 (3)	1.3502 (4)	0.0511 (13)
O7	0.4099 (5)	0.9195 (2)	1.4553 (3)	0.0393 (10)
N1	0.5977 (5)	0.7007 (3)	0.9657 (3)	0.0291 (11)
H1A	0.6057	0.7476	0.9852	0.035*
H1B	0.6610	0.6940	0.9342	0.035*
N2	0.6148 (5)	0.8446 (3)	1.0310 (3)	0.0290 (11)
H2A	0.6910	0.8627	1.0183	0.035*
H2B	0.5995	0.8002	1.0048	0.035*
N3	0.8181 (5)	0.7281 (3)	0.8790 (3)	0.0310 (11)
N4	0.8378 (5)	0.8797 (3)	0.9522 (3)	0.0307 (11)
C1	0.4761 (7)	0.6939 (4)	0.9107 (4)	0.0355 (14)
H1	0.4556	0.7228	0.8602	0.043*
C2	0.3799 (6)	0.6452 (4)	0.9266 (4)	0.0366 (14)
H2	0.2956	0.6414	0.8873	0.044*
C3	0.4100 (6)	0.6019 (3)	1.0016 (4)	0.0288 (12)
C4	0.5374 (6)	0.6075 (3)	1.0563 (4)	0.0358 (14)
H4	0.5611	0.5783	1.1066	0.043*
C5	0.6292 (6)	0.6565 (3)	1.0361 (4)	0.0359 (14)
H5	0.7160	0.6590	1.0726	0.043*
C6	0.3026 (6)	0.5525 (3)	1.0250 (4)	0.0318 (13)
C7	0.6409 (6)	0.8334 (3)	1.1190 (4)	0.0337 (13)
H7	0.7112	0.8019	1.1452	0.040*
C8	0.5659 (7)	0.8674 (3)	1.1703 (4)	0.0362 (14)
H8	0.5865	0.8600	1.2309	0.043*
C9	0.4592 (6)	0.9128 (3)	1.1310 (4)	0.0286 (12)
C10	0.4323 (7)	0.9234 (3)	1.0416 (4)	0.0352 (14)
H10	0.3609	0.9536	1.0139	0.042*
C11	0.5125 (6)	0.8887 (3)	0.9934 (4)	0.0336 (13)
H11	0.4946	0.8963	0.9328	0.040*
C12	0.3754 (6)	0.9522 (3)	1.1861 (4)	0.0331 (13)
C13	0.9640 (6)	0.7410 (3)	0.8849 (4)	0.0347 (14)
H13A	0.9922	0.7106	0.8412	0.042*
H13B	1.0146	0.7249	0.9424	0.042*
C14	1.0031 (6)	0.8211 (3)	0.8714 (4)	0.0355 (14)
C15	0.9831 (6)	0.8697 (3)	0.9473 (4)	0.0368 (14)
H15A	1.0331	0.8483	1.0022	0.044*
H15B	1.0221	0.9178	0.9415	0.044*
C16	1.1574 (8)	0.8195 (5)	0.8754 (7)	0.064 (2)
H16A	1.1883	0.8685	0.8672	0.097*
H16B	1.1745	0.7880	0.8297	0.097*
H16C	1.2051	0.8011	0.9317	0.097*
C17	0.9257 (9)	0.8513 (4)	0.7833 (5)	0.054 (2)
H17A	0.9526	0.9014	0.7772	0.081*
H17B	0.8299	0.8495	0.7805	0.081*
H17C	0.9457	0.8220	0.7365	0.081*
N5	0.1528 (7)	0.0299 (4)	0.8240 (4)	0.0517 (16)
N6	0.8329 (11)	0.2478 (4)	0.8557 (7)	0.094 (3)
O8	0.1134 (6)	0.0335 (4)	0.7424 (3)	0.0653 (16)
O9	0.2581 (7)	−0.0041 (4)	0.8548 (5)	0.081 (2)
O10	0.0857 (8)	0.0594 (5)	0.8702 (4)	0.098 (3)
O11	0.8497 (13)	0.2960 (4)	0.9061 (6)	0.139 (5)
O12	0.7950 (12)	0.1886 (5)	0.8507 (8)	0.158 (5)
O13	0.8774 (12)	0.2605 (9)	0.7898 (8)	0.155 (5)
OW1	0.6567 (6)	0.0487 (3)	0.3034 (4)	0.0654 (15)
OW2	0.6303 (9)	0.2089 (4)	0.2788 (6)	0.097 (2)

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Pt	0.02856 (14)	0.02250 (13)	0.02683 (14)	−0.00271 (8)	0.01506 (10)	−0.00061 (8)
Cu	0.0335 (4)	0.0284 (4)	0.0316 (4)	0.0068 (3)	0.0156 (3)	−0.0029 (3)
O1	0.035 (2)	0.047 (3)	0.034 (2)	−0.013 (2)	0.013 (2)	0.0088 (19)
O2	0.037 (3)	0.066 (3)	0.041 (3)	−0.023 (2)	0.007 (2)	0.009 (2)
O3	0.044 (3)	0.035 (2)	0.034 (2)	0.0094 (19)	0.018 (2)	−0.0025 (18)
O4	0.080 (4)	0.066 (3)	0.056 (3)	0.042 (3)	0.030 (3)	0.014 (3)
O5	0.041 (3)	0.040 (2)	0.039 (2)	−0.001 (2)	0.012 (2)	−0.0031 (19)
O6	0.053 (3)	0.037 (3)	0.069 (3)	−0.006 (2)	0.027 (3)	−0.011 (2)
O7	0.045 (3)	0.034 (2)	0.036 (2)	0.007 (2)	0.004 (2)	−0.0033 (18)
N1	0.035 (3)	0.028 (2)	0.031 (3)	−0.005 (2)	0.021 (2)	−0.002 (2)
N2	0.030 (3)	0.026 (2)	0.036 (3)	−0.002 (2)	0.017 (2)	0.001 (2)
N3	0.034 (3)	0.027 (2)	0.039 (3)	−0.008 (2)	0.023 (2)	−0.007 (2)
N4	0.033 (3)	0.025 (2)	0.038 (3)	−0.003 (2)	0.017 (2)	−0.001 (2)
C1	0.037 (4)	0.041 (3)	0.029 (3)	−0.007 (3)	0.009 (3)	0.007 (3)
C2	0.029 (3)	0.046 (4)	0.033 (3)	−0.008 (3)	0.003 (3)	0.008 (3)
C3	0.028 (3)	0.029 (3)	0.034 (3)	−0.002 (2)	0.016 (3)	0.001 (2)
C4	0.034 (3)	0.037 (3)	0.036 (3)	−0.005 (3)	0.007 (3)	0.010 (3)
C5	0.026 (3)	0.036 (3)	0.045 (4)	−0.006 (2)	0.006 (3)	0.011 (3)
C6	0.032 (3)	0.034 (3)	0.033 (3)	−0.007 (3)	0.014 (3)	0.001 (3)
C7	0.036 (3)	0.037 (3)	0.031 (3)	0.011 (3)	0.014 (3)	0.006 (3)
C8	0.045 (4)	0.038 (3)	0.030 (3)	0.010 (3)	0.017 (3)	0.003 (3)
C9	0.034 (3)	0.029 (3)	0.027 (3)	0.000 (2)	0.015 (2)	−0.002 (2)
C10	0.033 (3)	0.039 (3)	0.035 (3)	0.004 (3)	0.013 (3)	0.003 (3)
C11	0.039 (3)	0.038 (3)	0.027 (3)	0.001 (3)	0.012 (3)	−0.002 (2)
C12	0.032 (3)	0.030 (3)	0.041 (4)	0.008 (3)	0.016 (3)	0.000 (3)
C13	0.033 (3)	0.031 (3)	0.044 (4)	0.002 (3)	0.017 (3)	−0.004 (3)
C14	0.032 (3)	0.033 (3)	0.047 (4)	−0.006 (3)	0.021 (3)	−0.001 (3)
C15	0.036 (3)	0.032 (3)	0.044 (4)	−0.005 (3)	0.011 (3)	−0.003 (3)
C16	0.042 (4)	0.049 (4)	0.113 (7)	−0.011 (4)	0.042 (5)	−0.008 (5)
C17	0.079 (6)	0.050 (4)	0.039 (4)	−0.003 (4)	0.025 (4)	0.007 (3)
N5	0.048 (4)	0.060 (4)	0.044 (4)	−0.022 (3)	0.003 (3)	0.001 (3)
N6	0.118 (8)	0.045 (4)	0.085 (6)	−0.014 (5)	−0.044 (6)	0.015 (4)
O8	0.052 (3)	0.100 (5)	0.041 (3)	0.019 (3)	0.006 (3)	−0.002 (3)
O9	0.065 (4)	0.072 (4)	0.090 (5)	−0.013 (3)	−0.018 (4)	0.029 (4)
O10	0.085 (5)	0.159 (7)	0.053 (4)	−0.026 (5)	0.022 (4)	−0.040 (4)
O11	0.243 (13)	0.067 (5)	0.073 (5)	0.011 (6)	−0.032 (7)	−0.015 (4)
O12	0.172 (11)	0.077 (6)	0.190 (11)	−0.034 (7)	−0.030 (9)	−0.004 (7)
O13	0.113 (8)	0.238 (14)	0.101 (8)	−0.005 (9)	−0.002 (7)	0.023 (9)
OW1	0.050 (3)	0.068 (4)	0.081 (4)	0.001 (3)	0.022 (3)	−0.004 (3)
OW2	0.091 (6)	0.100 (6)	0.099 (6)	−0.014 (4)	0.019 (5)	0.020 (4)

Geometric parameters (Å, º)

Pt—N3	2.031 (5)	C1—C2	1.377 (8)
Pt—N2	2.037 (5)	C2—C3	1.382 (8)
Pt—N4	2.044 (5)	C3—C4	1.375 (9)
Pt—N1	2.044 (5)	C3—C6	1.516 (8)
Cu—O3	1.912 (4)	C4—C5	1.372 (8)
Cu—O1^i	1.924 (4)	C7—C8	1.368 (8)
Cu—O6	1.978 (5)	C8—C9	1.383 (9)
Cu—O5	1.988 (5)	C9—C10	1.371 (8)
Cu—O7	2.306 (4)	C9—C12	1.516 (8)
O1—C6	1.260 (7)	C10—C11	1.377 (8)
O1—Cu^ii	1.924 (4)	C13—C14	1.531 (9)
O2—C6	1.239 (7)	C14—C17	1.518 (10)
O3—C12	1.275 (7)	C14—C15	1.525 (9)
O4—C12	1.218 (8)	C14—C16	1.546 (9)
N1—C1	1.333 (8)	N5—O10	1.220 (9)
N1—C5	1.338 (8)	N5—O9	1.228 (9)
N2—C11	1.332 (8)	N5—O8	1.244 (8)
N2—C7	1.351 (7)	N6—O12	1.136 (12)
N3—C13	1.476 (8)	N6—O11	1.161 (11)
N4—C15	1.500 (8)	N6—O13	1.235 (15)
N3—Pt—N2	176.76 (19)	C2—C3—C6	120.6 (5)
N3—Pt—N4	93.41 (19)	C5—C4—C3	119.4 (6)
N2—Pt—N4	89.53 (19)	N1—C5—C4	122.1 (6)
N3—Pt—N1	90.74 (19)	O2—C6—O1	126.9 (5)
N2—Pt—N1	86.32 (19)	O2—C6—C3	118.6 (5)
N4—Pt—N1	175.84 (18)	O1—C6—C3	114.5 (5)
O3—Cu—O1^i	176.6 (2)	N2—C7—C8	121.4 (6)
O3—Cu—O6	90.7 (2)	C7—C8—C9	119.4 (6)
O1^i—Cu—O6	91.7 (2)	C10—C9—C8	119.0 (5)
O3—Cu—O5	89.37 (19)	C10—C9—C12	120.3 (5)
O1^i—Cu—O5	87.78 (19)	C8—C9—C12	120.7 (5)
O6—Cu—O5	167.6 (2)	C9—C10—C11	119.2 (6)
O3—Cu—O7	87.42 (17)	N2—C11—C10	121.9 (6)
O1^i—Cu—O7	94.88 (17)	O4—C12—O3	125.3 (6)
O6—Cu—O7	93.6 (2)	O4—C12—C9	119.5 (6)
O5—Cu—O7	98.75 (18)	O3—C12—C9	115.1 (5)
C6—O1—Cu^ii	128.4 (4)	N3—C13—C14	115.4 (5)
C12—O3—Cu	113.9 (4)	C17—C14—C15	111.1 (6)
C1—N1—C5	118.8 (5)	C17—C14—C13	111.8 (6)
C1—N1—Pt	120.9 (4)	C15—C14—C13	110.9 (5)
C5—N1—Pt	119.4 (4)	C17—C14—C16	110.4 (6)
C11—N2—C7	119.2 (5)	C15—C14—C16	106.9 (6)
C11—N2—Pt	120.5 (4)	C13—C14—C16	105.5 (5)
C7—N2—Pt	120.1 (4)	N4—C15—C14	114.6 (5)
C13—N3—Pt	119.2 (4)	O10—N5—O9	122.6 (8)
C15—N4—Pt	118.7 (4)	O10—N5—O8	119.3 (7)
N1—C1—C2	121.9 (6)	O9—N5—O8	118.1 (7)
C1—C2—C3	119.2 (6)	O12—N6—O11	138.8 (15)
C4—C3—C2	118.5 (5)	O12—N6—O13	107.4 (13)
C4—C3—C6	120.9 (5)	O11—N6—O13	113.5 (12)

Symmetry codes: (i) −x+1/2, y+1/2, −z+5/2; (ii) −x+1/2, y−1/2, −z+5/2.