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A novel dinuclear complex with an empirical formula [Co2(1H-benzimidazole)4(1, 4-bdoa)2] (1,4-bdoa2– = benzene-1,4-dioxyacetate dianion) has been synthesized and characterized by elemental analysis, IR and single-crystal X-ray diffraction. It crystallizes in monoclinic system, space group P21/c with a = 11.000(2), b = 19.385(4), c = 11.417(2) ?, β = 95.49(3)o, V = 2423.3(8) ?3, Z = 2, Mr = 1074.77, Dc = 1.473 g/cm3, μ = 0.760 mm–1, F(000) = 1108, the final R = 0.0645 and wR = 0.0714 for 3273 observed reflections (I > 2σ(I)). Two octahedrally coordinated Co(II) atoms are bridged by two 1,4-bdoa2– groups, generating a macrocyclic ring complex. The Co…Co separa- tion is 7.677(3) ?. An extended 3-D supramolecular network is formed through hydrogen bonds and weak π-π stacking interactions.
A novel dinuclear complex with an empirical formula [Co2 (1H-benzimidazole) 4 (1,4-bdoa) 2] (1,4-bdoa2- = benzene- 1,4-dioxyacetate dianion) has been synthesized and characterized by elemental analysis , IR and single-crystal X-ray diffraction. It crystallizes in a monoclinic system with space group P21 / c with a = 11.000 (2), b = 19.385 (4), c = 11.417 (2) ), V = 2423.3 (8)? 3, Z = 2, Mr = 1074.77, Dc = 1.473 g / cm3, μ = 0.760 mm- 1, F (000) = 1108, the final R = 0.0645 and wR = for octhedrally coordinated Co (II) atoms are bridged by two 1,4-bdoa2-groups, generating a macrocyclic ring complex. The Co ... Co separa tion is 7.677 (3 )?. An extended 3-D supramolecular network is formed through hydrogen bonds and weak π-π stacking interactions.