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The title compound, catena-poly[di-μ-cyano-1:2κ2C:N;1:2′κ2C:N-dicyano-1-κ2C-bis­(ethyl­enediamine-2κ2N,N′)platinum(II)copper(II)], [CuPt(CN)4(C2H8N2)2]n, (I), consists of one-dimensional chains running along the [111] direction. Both Cu and Pt atoms are located on centres of symmetry in an alternating array of [Cu(en)2]2+ (en is ethyl­enediamine) and [Pt(CN)4]2− units. The Pt—C coordination bond distances of 1.985 (4) and 1.995 (4) Å are longer than those of an analogous NiII complex. Moreover, due to Jahn–Teller distortion, the axial Cu—N bond distance of 2.562 (5) Å is longer than the equatorial ones of 2.014 (4) and 2.017 (4) Å.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536806010488/ob6610sup1.cif
Contains datablocks global, I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S1600536806010488/ob6610Isup2.hkl
Contains datablock I

CCDC reference: 605144

Key indicators

  • Single-crystal X-ray study
  • T = 298 K
  • Mean [sigma](C-C) = 0.008 Å
  • R factor = 0.022
  • wR factor = 0.055
  • Data-to-parameter ratio = 18.9

checkCIF/PLATON results

No syntax errors found



Alert level C PLAT241_ALERT_2_C Check High Ueq as Compared to Neighbors for N2 PLAT420_ALERT_2_C D-H Without Acceptor N4 - H4C ... ? PLAT480_ALERT_4_C Long H...A H-Bond Reported H3D .. N2 .. 2.84 Ang. PLAT480_ALERT_4_C Long H...A H-Bond Reported H4D .. N2 .. 2.84 Ang.
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 4 ALERT level C = Check and explain 0 ALERT level G = General alerts; check 0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 2 ALERT type 2 Indicator that the structure model may be wrong or deficient 0 ALERT type 3 Indicator that the structure quality may be low 2 ALERT type 4 Improvement, methodology, query or suggestion

Computing details top

Data collection: WinAFC Diffractometer Control Software (Rigaku, 1999); cell refinement: WinAFC Diffractometer Control Software; data reduction: TEXSAN (Molecular Structure Corporation, 2001); program(s) used to solve structure: SIR92 (Altomare et al., 1994); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEPII (Johnson, 1976); software used to prepare material for publication: TEXSAN.

catena-poly[µ-cyano-1:2κ2C:N-µ-cyano-1:2'κ2C:N-dicyano-1-κ2C- bis(ethylenediamine-2κ2N,N')platinum(II)copper(II)] top
Crystal data top
[Cu(C2H8N2)2Pt(CN)4]Z = 1
Mr = 482.92F(000) = 227
Triclinic, P1Dx = 2.266 Mg m3
Hall symbol: -P 1Mo Kα radiation, λ = 0.71073 Å
a = 6.560 (4) ÅCell parameters from 25 reflections
b = 7.350 (5) Åθ = 10.0–13.9°
c = 8.068 (3) ŵ = 11.37 mm1
α = 107.27 (4)°T = 298 K
β = 90.92 (4)°Prismatic, blue
γ = 106.54 (6)°0.30 × 0.20 × 0.20 mm
V = 353.9 (4) Å3
Data collection top
Rigaku AFC-7R
diffractometer
1628 reflections with I > 2σ(I)
Radiation source: Rigaku rotating anode generatorRint = 0.044
Graphite monochromatorθmax = 27.5°
ω/2θ scansh = 88
Absorption correction: ψ scan
(North et al., 1968)
k = 93
Tmin = 0.060, Tmax = 0.103l = 1010
1844 measured reflections3 standard reflections every 150 reflections
1630 independent reflections intensity decay: 1.4%
Refinement top
Refinement on F2Secondary atom site location: inferred from neighbouring sites
Least-squares matrix: fullHydrogen site location: mixed
R[F2 > 2σ(F2)] = 0.022H-atom parameters constrained
wR(F2) = 0.055 w = 1/[σ2(Fo2) + (0.05P)2 + 0.0221P]
where P = (Fo2 + 2Fc2)/3
S = 1.01(Δ/σ)max = 0.001
1628 reflectionsΔρmax = 1.05 e Å3
86 parametersΔρmin = 2.32 e Å3
0 restraintsExtinction correction: SHELXL97 (Sheldrick, 1997), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Primary atom site location: structure-invariant direct methodsExtinction coefficient: 0.241 (8)
Special details top

Experimental. IR (KBr, ν, cm-1): 492, 530, 613, 719, 971, 1036, 1082, 1163, 1274, 1317, 1592, 2122 (cyanide), 2874, 2928, 2983, 3155, 3277, 3310, 3332.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Pt10.00000.00000.00000.02971 (13)
Cu10.50000.50000.50000.03174 (15)
N10.3472 (8)0.1181 (7)0.1806 (6)0.0569 (11)
N20.1514 (7)0.4072 (6)0.3033 (6)0.0501 (9)
N30.4093 (6)0.2367 (5)0.5487 (5)0.0398 (7)
H3C0.36720.13520.44780.048*
H3D0.51960.22120.60490.048*
N40.3419 (6)0.5921 (6)0.7054 (5)0.0408 (7)
H4C0.42430.70900.77980.049*
H4D0.22160.61090.66830.049*
C10.2202 (7)0.0815 (6)0.1088 (5)0.0381 (8)
C20.0941 (6)0.2605 (6)0.1893 (5)0.0363 (7)
C30.2303 (9)0.2359 (8)0.6581 (7)0.0518 (10)
H3A0.21110.13220.71300.062*
H3B0.09840.21110.58730.062*
C40.2876 (9)0.4391 (10)0.7948 (6)0.0549 (11)
H4A0.16770.45180.86120.066*
H4B0.40870.45630.87470.066*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Pt10.02801 (15)0.03556 (16)0.02654 (15)0.00890 (8)0.00073 (7)0.01201 (8)
Cu10.0333 (3)0.0307 (3)0.0309 (3)0.0102 (2)0.0057 (2)0.0087 (2)
N10.060 (3)0.059 (2)0.055 (2)0.028 (2)0.013 (2)0.0138 (19)
N20.046 (2)0.051 (2)0.045 (2)0.0143 (16)0.0093 (16)0.0031 (16)
N30.0440 (18)0.0365 (14)0.0393 (17)0.0115 (13)0.0043 (14)0.0137 (13)
N40.0362 (17)0.0478 (17)0.0359 (16)0.0144 (14)0.0047 (13)0.0080 (13)
C10.0387 (19)0.0397 (17)0.0352 (18)0.0149 (15)0.0034 (15)0.0081 (14)
C20.0317 (17)0.0423 (18)0.0375 (18)0.0143 (14)0.0020 (14)0.0136 (15)
C30.051 (3)0.059 (2)0.052 (2)0.009 (2)0.006 (2)0.033 (2)
C40.057 (3)0.081 (3)0.035 (2)0.027 (3)0.0115 (19)0.023 (2)
Geometric parameters (Å, º) top
Pt1—C21.985 (4)N3—H3D0.9000
Pt1—C11.995 (4)N4—C41.474 (7)
Cu1—N32.014 (4)N4—H4C0.9000
Cu1—N42.017 (4)N4—H4D0.9000
Cu1—N22.562 (5)C3—C41.509 (8)
N1—C11.143 (6)C3—H3A0.9700
N2—C21.149 (6)C3—H3B0.9700
N3—C31.480 (7)C4—H4A0.9700
N3—H3C0.9000C4—H4B0.9700
C2—Pt1—C188.08 (17)C4—N4—H4D109.9
C2i—Pt1—C191.92 (17)Cu1—N4—H4D109.9
N3—Cu1—N484.40 (17)H4C—N4—H4D108.3
N3—Cu1—N4ii95.60 (17)N1—C1—Pt1175.6 (4)
N2—Cu1—N391.69 (16)N2—C2—Pt1177.1 (4)
N2—Cu1—N487.69 (17)N3—C3—C4106.9 (4)
Cu1—N2—C2121.6 (4)N3—C3—H3A110.3
C3—N3—Cu1108.2 (3)C4—C3—H3A110.3
C3—N3—H3C110.1N3—C3—H3B110.3
Cu1—N3—H3C110.1C4—C3—H3B110.3
C3—N3—H3D110.1H3A—C3—H3B108.6
Cu1—N3—H3D110.1N4—C4—C3108.2 (4)
H3C—N3—H3D108.4N4—C4—H4A110.1
C4—N4—Cu1109.0 (3)C3—C4—H4A110.1
C4—N4—H4C109.9N4—C4—H4B110.1
Cu1—N4—H4C109.9C3—C4—H4B110.1
N4—Cu1—N3—C318.2 (3)Cu1—N3—C3—C442.7 (4)
N4ii—Cu1—N3—C3161.8 (3)Cu1—N4—C4—C337.1 (5)
N3—Cu1—N4—C410.7 (3)N3—C3—C4—N452.9 (5)
Symmetry codes: (i) x, y, z; (ii) x+1, y+1, z+1.
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N3—H3C···N10.902.373.247 (5)166
N3—H3D···N1iii0.902.333.145 (7)150
N3—H3D···N2ii0.902.843.212 (5)107
N4—H4D···N20.902.843.196 (5)105
Symmetry codes: (ii) x+1, y+1, z+1; (iii) x+1, y, z+1.
 

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