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Bis[?-2,2'-dimethyl-1,1'-(3-oxapentane-1,5-di-yl)di-1H-benzimidazole-?N:N]bis-[bis-(4-meth-oxy-benzoato)-?O;?O,O'-cobalt(II)].

ABSTRACT: The complete mol-ecule of the title complex, [Co(2)(C(8)H(7)O(3))(4)(C(20)H(22)N(4)O)(2)], is a dimer of the paddle-wheel-type generated by crystallographic inversion symmetry. The Co(II) ion is penta-coordinated by three O atoms from two 4-meth-oxy-benzoate anions (one bidentate and one monodentate) and two N atoms from two 2,2'-bis-(2-methyl-1H-benzimidazole)-ether ligands. This results in a very distorted trigonal-bipyramidal geometry for the metal ion, with both N atoms in equatorial sites. The dihedral angle between the benzimidazole ring systems in the ligand is 60.04?(8)°. The configuration of the mol-ecule is supported by intra-molecular C-H?O hydrogen bonds.

SUBMITTER: Zhao LP 

PROVIDER: S-EPMC3011569 | biostudies-literature | 2010 Nov

REPOSITORIES: biostudies-literature

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Bis[μ-2,2'-dimethyl-1,1'-(3-oxapentane-1,5-di-yl)di-1H-benzimidazole-κN:N]bis-[bis-(4-meth-oxy-benzoato)-κO;κO,O'-cobalt(II)].

Zhao Lian-Peng LP  

Acta crystallographica. Section E, Structure reports online 20101113 Pt 12

The complete mol-ecule of the title complex, [Co(2)(C(8)H(7)O(3))(4)(C(20)H(22)N(4)O)(2)], is a dimer of the paddle-wheel-type generated by crystallographic inversion symmetry. The Co(II) ion is penta-coordinated by three O atoms from two 4-meth-oxy-benzoate anions (one bidentate and one monodentate) and two N atoms from two 2,2'-bis-(2-methyl-1H-benzimidazole)-ether ligands. This results in a very distorted trigonal-bipyramidal geometry for the metal ion, with both N atoms in equatorial sites.  ...[more]

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