Received 28 February 2011
aDepartment of Chemistry, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, Yunnan University, Kunming 650091, People's Republic of China,bOrdered Matter Science Research Center, Department of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China, and cSchool of Chemistry and Materials Science, Huaibei Normal University, Anhui 235000, People's Republic of China
Correspondence e-mail: firstname.lastname@example.org
In the title compound, [Co(C14H16N2O4)2(H2O)2]n, the CoII atom, lying on an inversion center, is coordinated by six O atoms in a distorted octahedral geometry. The CoII atoms are bridged by the nitronyl nitroxide ligands into a tape-like structure along the b axis. The tapes are further connected by O-HO hydrogen bonds, forming a layer parallel to the bc plane.
For related structures, see: Caneschi et al. (1993); Luneau et al. (1998). For the synthesis of [Co(C5H9O2)2(H2O)2], see: Mehrotra & Bohra (1983). For the synthesis of 2-(4-carboxyphenyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-1-oxyl-3-oxide, see: Schiødt et al. (1996).
Data collection: CrystalClear (Rigaku, 2005); cell refinement: CrystalClear; data reduction: CrystalClear; 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: IS2683 ).
Caneschi, A., Chiesi, P., David, L., Ferraro, F., Gatteschi, D. & Sessoli, R. (1993). Inorg. Chem. 32, 1445-1453.
Luneau, D., Romero, F. M. & Ziessel, R. (1998). Inorg. Chem. 37, 5078-5087.
Mehrotra, R. C. & Bohra, R. (1983). Metal Carboxylates, Academic Press: London.
Rigaku (2005). CrystalClear. Rigaku Corporation, Tokyo, Japan.
Schiødt, N. C., Fabrizi de Biani, F., Caneschi, A. & Gatteschi, D. (1996). Inorg. Chim. Acta, 248, 139-146.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.