Bis(2,2′-bipyridine)(2-hy­droxy-2,2-diphenyl­acetato)­copper(II) nitrate dihydrate

Wang, X.-J.; Zheng, C.; Mai, S.-W.; Xu, X.; Luo, Y.-F.

doi:10.1107/S1600536810035555

Volume 66
Part 10
Page m1245
October 2010

Received 20 August 2010
Accepted 3 September 2010
Online 11 September 2010

Key indicators
Single-crystal X-ray study
T = 296 K
Mean (C-C) = 0.007 Å
R = 0.055
wR = 0.138
Data-to-parameter ratio = 13.2
Details

Bis(2,2'-bipyridine)(2-hydroxy-2,2-diphenylacetato)copper(II) nitrate dihydrate

Xiao-Jun Wang,^a Chun Zheng,^a Shao-Wei Mai,^a Xuan Xu ^a ^* and Yi-Fan Luo ^a

^aSchool of Chemistry and Environment, South China Normal University, Guangzhou 510006, People's Republic of China
Correspondence e-mail: xuxuan2004@yahoo.com.cn

In the title complex, [Cu(C₁₄H₁₁O₃)(C₁₀H₈N₂)₂]NO₃·2H₂O, the Cu^II atom is coordinated by four N atoms from two 2,2'-bipyridine ligands and two O atoms from one benzilate ligand in a distorted octahedral geometry. A supramolecular network is formed via intermolecular O-HO and C-HO hydrogen-bonding interactions. [pi] - [pi] stacking interactions between neighboring pyridine rings are also present, the centroid-centroid distance being 3.808 (2) Å.

Related literature

For related structures, see: Carballo et al. (2005); Herrmann et al. (1994); Qiu et al. (2007).

Experimental

Crystal data

[Cu(C₁₄H₁₁O₃)(C₁₀H₈N₂)₂]NO₃·2H₂O
M_r = 701.18
Monoclinic, P 2₁ /c
a = 10.612 (2) Å
b = 25.758 (6) Å
c = 12.322 (3) Å
= 108.220 (3)°
V = 3199.3 (13) Å³
Z = 4
Mo K radiation
= 0.74 mm^-1
T = 296 K
0.23 × 0.21 × 0.19 mm

Data collection

Bruker APEXII area-detector diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2005) T_min = 0.848, T_max = 0.872
16165 measured reflections
5750 independent reflections
3659 reflections with I > 2(I)
R_int = 0.057

Refinement

R[F² > 2(F²)] = 0.055
wR(F²) = 0.138
S = 1.00
5750 reflections
434 parameters
6 restraints
H-atom parameters constrained
_max = 0.57 e Å^-3
_min = -0.51 e Å^-3

Table 1
Hydrogen-bond geometry (Å, °)

D-HA	D-H	HA	DA	D-HA
O2W-H3WO5ⁱ	0.85	2.16	2.844 (6)	138
O1W-H1WO4ⁱⁱ	0.85	2.07	2.884 (7)	159
O2W-H3WO1Wⁱⁱⁱ	0.85	2.59	3.041 (7)	114
O1W-H2WO2Wⁱⁱⁱ	0.85	2.46	3.041 (7)	126
O1W-H2WO4^iv	0.85	2.28	2.856 (6)	125
O3-H3O6^v	0.82	2.48	3.210 (5)	149
O3-H3O1	0.82	2.10	2.597 (4)	119
C10-H10O1W	0.93	2.41	3.341 (7)	174
C8-H8O3^iv	0.93	2.54	3.389 (6)	152
C4-H4O5^vi	0.93	2.59	3.488 (6)	162
C12-H12O5^vii	0.93	2.38	3.285 (7)	165
C14-H14O1^viii	0.93	2.56	3.420 (6)	155
C17-H17O1^viii	0.93	2.39	3.270 (5)	159
Symmetry codes: (i) $[-x+2, y+{\script{1\over 2}}, -z+{\script{3\over 2}}]$ ; (ii) $[-x+1, y-{\script{1\over 2}}, -z+{\script{3\over 2}}]$ ; (iii) -x+1, -y+1, -z+1; (iv) $[x-1, -y+{\script{1\over 2}}, z-{\script{1\over 2}}]$ ; (v) $[x, -y+{\script{1\over 2}}, z+{\script{1\over 2}}]$ ; (vi) x-1, y, z; (vii) $[x-1, -y+{\script{1\over 2}}, z+{\script{1\over 2}}]$ ; (viii) -x+1, -y, -z+2.

Data collection: APEX2 (Bruker, 2004); cell refinement: SAINT (Bruker, 2004); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: PV2323 ).

Acknowledgements

The authors acknowledge the Natural Science Foundation of Guangdong Province (No. 9151063101000037) for support of this work.

References

Bruker (2004). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Bruker (2005). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Carballo, R., Covelo, B., Vazquez-Lopez, E. M., Garcia-Martinez, E., Castineiras, A. & Niclos, J. (2005). Z. Anorg. Allg. Chem. 631, 785-792.
Herrmann, W. A., Roesky, P. W., Scherer, W. & Kleine, M. (1994). Organometallics, 13, 4536-4542.
Qiu, Y. C., Wang, K. N., Liu, Y., Deng, H., Sun, F. & Cai, Y. P. (2007). Inorg. Chim. Acta, 360, 1819-1824.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.

metal-organic compounds