Bis(μ-biphenyl-2,2′-dicarboxyl­ato)bis­[(2,2′-bipyridine)copper(II)]

Guo, H.-X.; Liang, M.; Lin, B.; Wang, Q.-H.; Li, X.-Z.

doi:10.1107/S160053680802583X

Volume 64
Part 9
Pages m1171-m1172
September 2008

Received 3 August 2008
Accepted 11 August 2008
Online 16 August 2008

Key indicators
Single-crystal X-ray study
T = 293 K
Mean (C-C) = 0.004 Å
R = 0.037
wR = 0.118
Data-to-parameter ratio = 16.0
Details

Bis(-biphenyl-2,2'-dicarboxylato)bis[(2,2'-bipyridine)copper(II)]

Hong-Xu Guo,^a ^* Min Liang,^a Bin Lin,^a Qing-Hua Wang ^a and Xi-Zhong Li ^a

^aDepartment of Chemistry and Environmental Science, Zhangzhou Normal University, Zhangzhou, Fujian 363000, People's Republic of China
Correspondence e-mail: ghx919@yahoo.com.cn

The title compound, [Cu₂(C₁₄H₈O₄)₂(C₁₀H₈N₂)₂], is a centrosymmetric binuclear copper(II) complex, with a CuCu separation of 6.136 (16) Å. The Cu atom displays a cis-CuN₂O₂ square-planar geometry, although two long (> 2.43 Å) CuO contacts complete a distorted cis-CuN₂O₄ octahedron. Extensive C-HO hydrogen bonds link the molecules into a three-dimensional network.

Related literature

For related literature, see: Bu et al. (2004); He et al. (2007); Huang et al. (2004); Long et al. (2001); Ma et al. (2003); Rao et al. (2004); Yaghi et al. (2003); Yang et al. (2002); Zhang et al. (2004); Zhu et al. (2001); He & Zhu (2003).

Experimental

Crystal data

[Cu₂(C₁₄H₈O₄)₂(C₁₀H₈N₂)₂]
M_r = 1839.75
Monoclinic, P 2₁ /c
a = 11.234 (2) Å
b = 13.336 (3) Å
c = 15.431 (6) Å
= 122.16 (2)°
V = 1957.1 (9) Å³
Z = 2
Mo K radiation
= 1.15 mm^-1
T = 293 (2) K
0.40 × 0.26 × 0.23 mm

Data collection

Siemens SMART CCD area-detector diffractometer
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) T_min = 0.708, T_max = 0.771
18687 measured reflections
4472 independent reflections
3708 reflections with I > 2(I)
R_int = 0.046

Refinement

R[F² > 2(F²)] = 0.036
wR(F²) = 0.118
S = 1.03
4472 reflections
280 parameters
H-atom parameters constrained
_max = 0.29 e Å^-3
_min = -0.60 e Å^-3

Table 1
Selected geometric parameters (Å, °)

Cu1-O1	1.9640 (15)
Cu1-O4ⁱ	1.9725 (16)
Cu1-N2	1.9814 (19)
Cu1-N1	1.9897 (19)
Cu1-O2	2.434 (2)
Cu1-O3ⁱ	2.557 (2)

O1-Cu1-O4ⁱ	93.92 (7)
O1-Cu1-N2	162.77 (7)
O4ⁱ-Cu1-N2	95.38 (8)
O1-Cu1-N1	94.56 (7)
O4ⁱ-Cu1-N1	160.15 (7)
N2-Cu1-N1	81.35 (8)
Symmetry code: (i) -x+1, -y, -z.

Table 2
Hydrogen-bond geometry (Å, °)

D-HA	D-H	HA	DA	D-HA
C1-H1AO1	0.93	2.58	3.081 (3)	114
C4-H4AO4ⁱⁱ	0.93	2.59	3.378 (3)	143
C5-H5AO4ⁱⁱ	0.93	2.51	3.304 (4)	144
C6-H6AO3ⁱⁱⁱ	0.93	2.25	3.162 (3)	166
C16-H16AO2^iv	0.93	2.48	3.192 (3)	133
C19-H19AO4	0.93	2.45	2.761 (3)	100
Symmetry codes: (ii) $[-x+1, y-{\script{1\over 2}}, -z-{\script{1\over 2}}]$ ; (iii) $[x, -y-{\script{1\over 2}}, z-{\script{1\over 2}}]$ ; (iv) $[-x+2, y+{\script{1\over 2}}, -z+{\script{1\over 2}}]$ .

Data collection: SMART (Siemens, 1994); cell refinement: SAINT (Siemens, 1994); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: OM2255 ).

Acknowledgements

This work was supported by a Project of Fujian Science and Technology Committee (grant No. 2006F5067), the Natural Science Foundation of Fujian Province (grant Nos. 2008J0172 and 2008J0237) and a Student Innovation Project of Zhangzhou Normal University (grant No. 08xscxxsyxm25).

References

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