Literature DB >> 23424422

Di-μ-chlorido-bis-[(2,2'-bipyridine-5,5'-dicarb-oxy-lic acid-κ(2)N,N')chloridocopper(II)] dimethyl-formamide tetra-solvate.

Sigurd Oien1, David Stephen Wragg, Karl Petter Lillerud, Mats Tilset.   

Abstract

In the title compound, [Cu(2)Cl(4)(C(12)H(8)N(2)O(4))(2)]·4C(3)H(7)NO, which contains a chloride-bridged centrosymmetric Cu(II) dimer, the Cu(II) atom is in a distorted square-pyramidal 4 + 1 coordination geometry defined by the N atoms of the chelating 2,2'-bipyridine ligand, a terminal chloride and two bridging chloride ligands. Of the two independent dimethyl-formamide mol-ecules, one is hydrogen bonded to a single -COOH group, while one links two adjacent -COOH groups via a strong accepted O-H⋯O and a weak donated C(O)-H⋯O hydrogen bond. Two of these last mol-ecules and the two -COOH groups form a centrosymmetric hydrogen-bonded ring in which the CH=O and the -COOH groups by disorder adopt two alternate orientations in a 0.44:0.56 ratio. These hydrogen bonds link the Cu(II) complex mol-ecules and the dimethyl-formamide solvent mol-ecules into infinite chains along [-111]. Slipped π-π stacking inter-actions between two centrosymmetric pyridine rings (centroid-centroid distance = 3.63 Å) contribute to the coherence of the structure along [0-11].

Entities:  

Year:  2013        PMID： 23424422      PMCID： PMC3569178          DOI： 10.1107/S1600536812051422

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN： 1600-5368


Related literature

For related structures with similar coordination geometry around the copper atoms, see: Goddard et al. (1990 ▶); Tynan et al. (2005 ▶); Han et al. (2008 ▶); Liu et al. (2009 ▶); Qi et al. (2009 ▶). For other related structures of chloro bipyridine copper complexes, see: Wang et al. (2004 ▶); Zhao et al. (2010 ▶).

Experimental

Crystal data

[Cu2Cl4(C12H8N2O4)2]·4C3H7NO M = 1049.66 Triclinic, a = 8.917 (5) Å b = 11.030 (6) Å c = 12.179 (7) Å α = 83.171 (6)° β = 73.903 (6)° γ = 68.332 (6)° V = 1069.4 (11) Å3 Z = 1 Mo Kα radiation μ = 1.32 mm−1 T = 100 K 0.20 × 0.15 × 0.02 mm

Data collection

Bruker APEXII CCD diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2005 ▶) T min = 0.789, T max = 0.974 9231 measured reflections 4824 independent reflections 3969 reflections with I > 2σ(I) R int = 0.021

Refinement

R[F 2 > 2σ(F 2)] = 0.029 wR(F 2) = 0.068 S = 1.02 4824 reflections 295 parameters H-atom parameters constrained Δρmax = 0.43 e Å−3 Δρmin = −0.37 e Å−3 Data collection: APEX2 (Bruker, 2005 ▶); cell refinement: SAINT (Bruker, 2005 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: DIAMOND (Brandenburg, 2006 ▶) and Materials Studio (Accelrys, 2010 ▶); software used to prepare material for publication: publCIF (Westrip, 2010 ▶). Click here for additional data file. Crystal structure: contains datablock(s) I, global. DOI: 10.1107/S1600536812051422/qk2049sup1.cif Click here for additional data file. Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536812051422/qk2049Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
[Cu2Cl4(C12H8N2O4)2]·4C3H7NOZ = 1
Mr = 1049.66F(000) = 538
Triclinic, P1Dx = 1.627 Mg m−3
Hall symbol: -P 1Mo Kα radiation, λ = 0.71073 Å
a = 8.917 (5) ÅCell parameters from 3373 reflections
b = 11.030 (6) Åθ = 2.5–27.4°
c = 12.179 (7) ŵ = 1.32 mm−1
α = 83.171 (6)°T = 100 K
β = 73.903 (6)°Prism, green
γ = 68.332 (6)°0.20 × 0.15 × 0.02 mm
V = 1069.4 (11) Å3
Bruker APEXII CCD diffractometer4824 independent reflections
Radiation source: fine-focus sealed tube3969 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.021
φ and ω scansθmax = 27.9°, θmin = 1.7°
Absorption correction: multi-scan (SADABS; Bruker, 2005)h = −11→11
Tmin = 0.789, Tmax = 0.974k = −14→14
9231 measured reflectionsl = −15→15
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.029Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.068H-atom parameters constrained
S = 1.02w = 1/[σ2(Fo2) + (0.0259P)2 + 0.590P] where P = (Fo2 + 2Fc2)/3
4824 reflections(Δ/σ)max = 0.001
295 parametersΔρmax = 0.43 e Å−3
0 restraintsΔρmin = −0.37 e Å−3
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.
xyzUiso*/UeqOcc. (<1)
C10.5061 (2)0.75714 (18)0.49804 (17)0.0142 (4)
C20.5665 (2)0.64520 (18)0.42163 (16)0.0141 (4)
C30.7981 (2)0.47716 (18)0.32901 (16)0.0150 (4)
H3A0.91280.43290.31120.018*
C40.6997 (3)0.43285 (18)0.28504 (17)0.0157 (4)
C50.5292 (2)0.49803 (19)0.31204 (17)0.0168 (4)
H50.46110.46980.28380.020*
C60.4604 (3)0.60601 (19)0.38163 (17)0.0170 (4)
H60.34590.65110.40100.020*
C70.7786 (3)0.31742 (19)0.20877 (17)0.0174 (4)
C80.3416 (3)0.84090 (19)0.52720 (17)0.0175 (4)
H80.26200.82920.49800.021*
C90.2973 (3)0.94225 (19)0.60049 (18)0.0178 (4)
H90.18841.00140.61920.021*
C100.4173 (3)0.95414 (18)0.64538 (17)0.0161 (4)
C110.3799 (3)1.0583 (2)0.72813 (18)0.0202 (4)
C120.5801 (3)0.86824 (19)0.61159 (17)0.0164 (4)
H120.66080.87740.64120.020*
C150.3041 (4)0.7442 (2)1.1227 (2)0.0452 (7)
H15A0.33180.72111.04410.068*
H15B0.23960.69521.16930.068*
H15C0.40470.72481.14650.068*
C160.1570 (3)0.9324 (3)1.2499 (2)0.0327 (6)
H16A0.08441.02201.25070.049*
H16B0.25390.92631.27340.049*
H16C0.09920.88181.30160.049*
C180.2042 (5)1.4697 (3)1.0417 (2)0.0590 (10)
H18A0.16081.50520.97640.088*
H18B0.29551.49711.03950.088*
H18C0.11801.50031.11030.088*
C190.2560 (3)1.2678 (2)0.95630 (19)0.0272 (5)
H190.29551.17710.96020.033*
C200.3184 (3)1.2590 (3)1.1386 (2)0.0434 (7)
H20A0.35791.16681.12650.065*
H20B0.22751.28111.20590.065*
H20C0.40731.28271.14830.065*
C21A0.1675 (3)0.9574 (2)1.04753 (19)0.0242 (5)0.437 (4)
H21A0.10171.04451.06200.029*0.437 (4)
O6A0.2100 (5)0.9214 (3)0.9473 (3)0.0255 (11)0.437 (4)
C21B0.1675 (3)0.9574 (2)1.04753 (19)0.0242 (5)0.563 (4)
H21B0.19830.91650.97810.029*0.563 (4)
O6B0.0912 (4)1.0793 (3)1.0485 (2)0.0304 (9)0.563 (4)
N10.6254 (2)0.77252 (15)0.53787 (14)0.0139 (3)
N20.7337 (2)0.58081 (15)0.39584 (14)0.0140 (3)
N40.2618 (3)1.32944 (19)1.04017 (16)0.0293 (4)
N210.2077 (2)0.88264 (17)1.13500 (15)0.0227 (4)
O10.6831 (2)0.27950 (15)0.17378 (14)0.0278 (4)
H10.73870.21610.13290.042*0.437 (4)
O20.93592 (19)0.26688 (15)0.18333 (14)0.0293 (4)
H20.96620.20470.14150.044*0.563 (4)
O30.23516 (19)1.15187 (14)0.73405 (13)0.0233 (3)
H30.22151.20660.77950.035*
O40.4777 (2)1.05397 (17)0.78151 (15)0.0347 (4)
O50.2021 (2)1.32076 (15)0.87227 (13)0.0337 (4)
Cl10.97529 (6)0.78040 (5)0.52466 (4)0.01868 (11)
Cl20.88428 (6)0.47339 (5)0.63849 (4)0.01680 (11)
Cu10.86273 (3)0.65512 (2)0.46635 (2)0.01421 (7)
U11U22U33U12U13U23
C10.0145 (10)0.0134 (9)0.0158 (10)−0.0059 (8)−0.0049 (8)0.0017 (7)
C20.0139 (10)0.0138 (9)0.0148 (10)−0.0054 (8)−0.0038 (8)0.0010 (7)
C30.0136 (10)0.0149 (9)0.0153 (10)−0.0035 (8)−0.0042 (8)0.0005 (8)
C40.0191 (10)0.0127 (9)0.0153 (10)−0.0062 (8)−0.0034 (8)−0.0001 (7)
C50.0177 (10)0.0170 (10)0.0187 (10)−0.0082 (8)−0.0067 (8)−0.0007 (8)
C60.0137 (10)0.0173 (10)0.0199 (11)−0.0050 (8)−0.0050 (8)0.0000 (8)
C70.0195 (11)0.0152 (9)0.0159 (10)−0.0055 (8)−0.0030 (8)−0.0006 (8)
C80.0151 (10)0.0181 (10)0.0209 (11)−0.0062 (8)−0.0064 (8)−0.0013 (8)
C90.0139 (10)0.0158 (10)0.0207 (11)−0.0031 (8)−0.0027 (8)−0.0011 (8)
C100.0180 (10)0.0138 (9)0.0151 (10)−0.0054 (8)−0.0023 (8)0.0000 (8)
C110.0207 (11)0.0207 (10)0.0176 (11)−0.0079 (9)0.0002 (9)−0.0046 (8)
C120.0167 (10)0.0174 (10)0.0164 (10)−0.0071 (8)−0.0042 (8)−0.0018 (8)
C150.0600 (19)0.0260 (13)0.0336 (15)−0.0043 (13)−0.0032 (14)0.0031 (11)
C160.0285 (13)0.0451 (15)0.0223 (12)−0.0123 (11)−0.0022 (10)−0.0053 (11)
C180.116 (3)0.0361 (16)0.0334 (16)−0.0372 (18)−0.0143 (18)−0.0073 (13)
C190.0318 (13)0.0209 (11)0.0236 (12)−0.0049 (10)−0.0021 (10)−0.0068 (9)
C200.0328 (15)0.0567 (18)0.0327 (15)0.0025 (13)−0.0144 (12)−0.0170 (13)
C21A0.0257 (12)0.0203 (11)0.0270 (12)−0.0070 (9)−0.0061 (10)−0.0068 (9)
O6A0.035 (2)0.0194 (19)0.020 (2)−0.0058 (16)−0.0081 (16)−0.0050 (14)
C21B0.0257 (12)0.0203 (11)0.0270 (12)−0.0070 (9)−0.0061 (10)−0.0068 (9)
O6B0.0358 (18)0.0216 (15)0.0283 (17)−0.0037 (13)−0.0062 (13)−0.0056 (12)
N10.0125 (8)0.0136 (8)0.0165 (8)−0.0046 (6)−0.0047 (7)−0.0003 (6)
N20.0132 (8)0.0138 (8)0.0152 (8)−0.0047 (7)−0.0040 (7)−0.0001 (6)
N40.0333 (12)0.0327 (11)0.0208 (10)−0.0114 (9)−0.0017 (9)−0.0097 (8)
N210.0223 (10)0.0221 (9)0.0213 (10)−0.0068 (8)−0.0020 (8)−0.0032 (7)
O10.0317 (9)0.0262 (8)0.0302 (9)−0.0137 (7)−0.0056 (7)−0.0114 (7)
O20.0210 (9)0.0259 (8)0.0344 (9)0.0000 (7)−0.0033 (7)−0.0114 (7)
O30.0269 (9)0.0170 (7)0.0219 (8)−0.0014 (6)−0.0053 (7)−0.0074 (6)
O40.0239 (9)0.0420 (10)0.0379 (10)−0.0025 (8)−0.0100 (8)−0.0239 (8)
O50.0581 (12)0.0210 (8)0.0189 (8)−0.0089 (8)−0.0109 (8)−0.0028 (7)
Cl10.0153 (2)0.0184 (2)0.0249 (3)−0.00683 (19)−0.0069 (2)−0.00293 (19)
Cl20.0120 (2)0.0202 (2)0.0173 (2)−0.00488 (19)−0.00233 (18)−0.00277 (19)
Cu10.01079 (13)0.01549 (12)0.01676 (13)−0.00388 (9)−0.00401 (9)−0.00304 (9)
C1—N11.355 (3)C15—H15C0.9600
C1—C81.386 (3)C16—N211.453 (3)
C1—C21.478 (3)C16—H16A0.9600
C2—N21.355 (3)C16—H16B0.9600
C2—C61.388 (3)C16—H16C0.9600
C3—N21.333 (3)C18—N41.439 (3)
C3—C41.391 (3)C18—H18A0.9600
C3—H3A0.9300C18—H18B0.9600
C4—C51.382 (3)C18—H18C0.9600
C4—C71.495 (3)C19—O51.242 (3)
C5—C61.388 (3)C19—N41.315 (3)
C5—H50.9300C19—H190.9300
C6—H60.9300C20—N41.456 (3)
C7—O11.261 (3)C20—H20A0.9600
C7—O21.264 (3)C20—H20B0.9600
C8—C91.385 (3)C20—H20C0.9600
C8—H80.9300C21A—O6A1.241 (4)
C9—C101.381 (3)C21A—N211.315 (3)
C9—H90.9300C21A—H21A0.9300
C10—C121.386 (3)N1—Cu12.0337 (18)
C10—C111.501 (3)N2—Cu12.0361 (17)
C11—O41.209 (3)O1—H10.8200
C11—O31.311 (3)O2—H20.8200
C12—N11.339 (3)O3—H30.8200
C12—H120.9300Cl1—Cu12.2525 (10)
C15—N211.451 (3)Cl2—Cu1i2.2804 (10)
C15—H15A0.9600Cl2—Cu12.7183 (12)
C15—H15B0.9600
N1—C1—C8121.94 (18)H16A—C16—H16C109.5
N1—C1—C2114.49 (17)H16B—C16—H16C109.5
C8—C1—C2123.57 (18)N4—C18—H18A109.5
N2—C2—C6122.18 (18)N4—C18—H18B109.5
N2—C2—C1114.96 (16)H18A—C18—H18B109.5
C6—C2—C1122.83 (18)N4—C18—H18C109.5
N2—C3—C4122.29 (19)H18A—C18—H18C109.5
N2—C3—H3A118.9H18B—C18—H18C109.5
C4—C3—H3A118.9O5—C19—N4125.3 (2)
C5—C4—C3118.91 (18)O5—C19—H19117.3
C5—C4—C7120.96 (18)N4—C19—H19117.3
C3—C4—C7120.13 (18)N4—C20—H20A109.5
C4—C5—C6119.42 (18)N4—C20—H20B109.5
C4—C5—H5120.3H20A—C20—H20B109.5
C6—C5—H5120.3N4—C20—H20C109.5
C5—C6—C2118.45 (19)H20A—C20—H20C109.5
C5—C6—H6120.8H20B—C20—H20C109.5
C2—C6—H6120.8O6A—C21A—N21125.4 (3)
O1—C7—O2125.27 (19)O6A—C21A—H21A117.3
O1—C7—C4117.40 (18)N21—C21A—H21A117.3
O2—C7—C4117.32 (18)C12—N1—C1118.42 (17)
C9—C8—C1119.05 (19)C12—N1—Cu1126.23 (14)
C9—C8—H8120.5C1—N1—Cu1115.10 (13)
C1—C8—H8120.5C3—N2—C2118.75 (17)
C10—C9—C8118.98 (19)C3—N2—Cu1126.29 (14)
C10—C9—H9120.5C2—N2—Cu1114.96 (13)
C8—C9—H9120.5C19—N4—C18121.5 (2)
C9—C10—C12119.08 (18)C19—N4—C20121.4 (2)
C9—C10—C11122.74 (18)C18—N4—C20117.0 (2)
C12—C10—C11118.17 (18)C21A—N21—C15121.8 (2)
O4—C11—O3124.97 (19)C21A—N21—C16122.4 (2)
O4—C11—C10121.63 (19)C15—N21—C16115.8 (2)
O3—C11—C10113.39 (18)C7—O1—H1109.5
N1—C12—C10122.42 (18)C7—O2—H2109.5
N1—C12—H12118.8C11—O3—H3109.5
C10—C12—H12118.8Cu1i—Cl2—Cu190.20 (4)
N21—C15—H15A109.5N1—Cu1—N279.91 (8)
N21—C15—H15B109.5N1—Cu1—Cl192.97 (6)
H15A—C15—H15B109.5N2—Cu1—Cl1166.75 (5)
N21—C15—H15C109.5N1—Cu1—Cl2i171.33 (5)
H15A—C15—H15C109.5N2—Cu1—Cl2i93.45 (7)
H15B—C15—H15C109.5Cl1—Cu1—Cl2i92.41 (5)
N21—C16—H16A109.5N1—Cu1—Cl296.09 (5)
N21—C16—H16B109.5N2—Cu1—Cl293.10 (6)
H16A—C16—H16B109.5Cl1—Cu1—Cl298.80 (4)
N21—C16—H16C109.5Cl2i—Cu1—Cl289.80 (4)
N1—C1—C2—N2−4.8 (2)C8—C1—N1—Cu1−171.55 (15)
C8—C1—C2—N2174.95 (18)C2—C1—N1—Cu18.2 (2)
N1—C1—C2—C6173.40 (18)C4—C3—N2—C2−0.1 (3)
C8—C1—C2—C6−6.9 (3)C4—C3—N2—Cu1179.64 (14)
N2—C3—C4—C5−0.4 (3)C6—C2—N2—C30.6 (3)
N2—C3—C4—C7178.92 (17)C1—C2—N2—C3178.81 (16)
C3—C4—C5—C60.3 (3)C6—C2—N2—Cu1−179.13 (15)
C7—C4—C5—C6−179.00 (18)C1—C2—N2—Cu1−0.9 (2)
C4—C5—C6—C20.2 (3)O5—C19—N4—C18−0.3 (4)
N2—C2—C6—C5−0.7 (3)O5—C19—N4—C20176.4 (2)
C1—C2—C6—C5−178.74 (18)O6A—C21A—N21—C15−2.5 (4)
C5—C4—C7—O1−2.5 (3)O6A—C21A—N21—C16178.3 (3)
C3—C4—C7—O1178.22 (18)C12—N1—Cu1—N2179.08 (17)
C5—C4—C7—O2176.55 (19)C1—N1—Cu1—N2−6.78 (13)
C3—C4—C7—O2−2.7 (3)C12—N1—Cu1—Cl1−12.18 (16)
N1—C1—C8—C9−0.9 (3)C1—N1—Cu1—Cl1161.96 (13)
C2—C1—C8—C9179.35 (18)C12—N1—Cu1—Cl287.00 (16)
C1—C8—C9—C10−2.2 (3)C1—N1—Cu1—Cl2−98.86 (14)
C8—C9—C10—C123.1 (3)C3—N2—Cu1—N1−175.67 (17)
C8—C9—C10—C11−178.12 (19)C2—N2—Cu1—N14.05 (13)
C9—C10—C11—O4166.9 (2)C3—N2—Cu1—Cl1126.0 (2)
C12—C10—C11—O4−14.3 (3)C2—N2—Cu1—Cl1−54.2 (3)
C9—C10—C11—O3−14.0 (3)C3—N2—Cu1—Cl2i9.96 (16)
C12—C10—C11—O3164.78 (18)C2—N2—Cu1—Cl2i−170.32 (13)
C9—C10—C12—N1−0.9 (3)C3—N2—Cu1—Cl2−80.03 (16)
C11—C10—C12—N1−179.79 (18)C2—N2—Cu1—Cl299.69 (13)
C10—C12—N1—C1−2.2 (3)Cu1i—Cl2—Cu1—N1173.62 (5)
C10—C12—N1—Cu1171.82 (14)Cu1i—Cl2—Cu1—N293.44 (6)
C8—C1—N1—C123.1 (3)Cu1i—Cl2—Cu1—Cl1−92.40 (5)
C2—C1—N1—C12−177.18 (16)Cu1i—Cl2—Cu1—Cl2i0.0
D—H···AD—HH···AD···AD—H···A
O2—H2···O6Bii0.821.722.515 (3)161
O1—H1···O6Aiii0.821.752.536 (4)161
O3—H3···O50.821.722.541 (2)177
C21A—H21A···O2iv0.932.713.591 (3)158
C21B—H21B···O1iii0.932.723.603 (3)159
Table 1

Selected bond lengths (Å)

N1—Cu12.0337 (18)
N2—Cu12.0361 (17)
Cl1—Cu12.2525 (10)
Cl2—Cu1i 2.2804 (10)
Cl2—Cu12.7183 (12)

Symmetry code: (i) .

Table 2

Hydrogen-bond geometry (Å, °)

D—H⋯A D—HH⋯A D⋯A D—H⋯A
O2—H2⋯O6B ii 0.821.722.515 (3)161
O1—H1⋯O6A iii 0.821.752.536 (4)161
O3—H3⋯O50.821.722.541 (2)177
C21A—H21A⋯O2iv 0.932.713.591 (3)158
C21B—H21B⋯O1iii 0.932.723.603 (3)159

Symmetry codes: (ii) ; (iii) ; (iv) .

  4 in total

1.  A short history of SHELX.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

2.  Di-μ-chlorido-bis-[chlorido(N,N'-dibenzyl-propane-1,2-diamine-κN,N')copper(II)].

Authors:  Yu-Fen Liu; Da-Fu Rong; Hai-Tao Xia; Da-Qi Wang
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2009-10-31

3.  Di-μ-chlorido-bis-(chlorido{2,2'-[3-(1H-imidazol-4-ylmeth-yl)-3-aza-pentane-1,5-di-yl]diphthalimide}copper(II)).

Authors:  Zhao-Peng Qi; Ai-Dong Wang; Hui Zhang; Xi-Xi Wang
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2009-11-04

4.  Di-μ(2)-chlorido-bis-[aqua-(2,2'-bipyridine-4,4'-dicarboxylic acid-κN,N')(nitrato-κO)copper(II)].

Authors:  Ke-Fei Han; Hui-Yong Wu; Zhong-Ming Wang; Hong-You Guo
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2008-11-22
  4 in total
  1 in total

1.  Crystal structure of a chloride-bridged copper(II) dimer: piperazine-1,4-dium bis-(di-μ-chlorido-bis[(4-carboxypyridine-2-carboxyl-ato-κ2N,O2)chlorido-cuprate(II)].

Authors:  Bassey Enyi Inah; Ayi Anyama Ayi; Amit Adhikary
Journal:  Acta Crystallogr E Crystallogr Commun       Date:  2017-01-27
  1 in total

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