Chloridobis(dimethylglyoximato-κ2 N,N′)(ethyl pyridine-3-carboxylate-κN)cobalt(III)
نویسندگان
چکیده
In the title compound, [Co(C(4)H(7)N(2)O(2))(2)Cl(C(8)H(9)NO(2))], which was prepared as a model complex of vitamin B(12), the Co(III) atom, which is linked to four N atoms of the pseudo-macrocyclic (dmgH)(2) ligand (dmgH is dimethyl-glyoximate) in the equatorial plane and one Cl(-) anion and one N atom of ethyl nicotinate in apical positions, displays an approximately octa-hedral coordination. The Co atom is 0.0187 (8) Å out of the mean plane of the four equatorial N atoms. The structure has an O⋯H⋯O bridge, which is very common in cobaloxime derivatives, with O⋯H distances of 1.24 (2) and 1.25 (2) Å.
منابع مشابه
Chloridobis(dimethylglyoximato-κ2 N,N′)(ethyl pyridine-4-carboxylate-κN)cobalt(III) chloroform monosolvate
The title compound, [Co(C(4)H(7)N(2)O(2))(2)Cl(C(8)H(9)NO(2))]·CHCl(3), was synthesized as a model complex of vitamin B(12). The Co(III) cation displays an approximately octa-hedral coordination environment, being displaced by 0.0240 (15) Å from the mean plane of the four N atoms of the equatorial plane. The O-H distances in the dimethyl-glyoximate hy-droxy groups are 0.89 (6) and 1.14 (6) Å; s...
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In the title complex, [Co(C(4)H(7)N(2)O(2))(2)Cl(C(6)H(7)N)]·0.5H(2)O, the central Co(III) ion, chelated by four N atoms of the two bidenate glyoximate ligands, exhibits a slightly distorted octa-hedral geometry. The axial positions are occupied by a chloride ion and the 4-methyl-pyridine N atom. Inter-molecular O-H⋯O hydrogen bonds link the mol-ecules in the crystal via the water mol-ecules, w...
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The title complex, [CoCl(C(5)H(13)N)(C(2)H(8)N(2))(2)]Cl(2)·H(2)O, comprises one chloridobis(ethyl-enediamine)(n-pentyl-amine)cobalt(III) cation, two chloride counter-anions and a water mol-ecule. The Co(III) atom of the complex is hexa-coordinated by five N and one Cl atoms. The five N atoms are from two chelating ethyl-enediamine and one n-pentyl-amine ligands. Neighbouring cations and anions...
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The title compound, trans-[Co(C(4)H(7)N(2)O(2))(2)Cl(C(10)H(14)N(2)S)]·0.5H(2)O, contains two independent mol-ecules in the asymmetric unit in which the Co(III) ions are coordinated in slightly distorted octa-hedral coordination environments. The bis-chelating glyoximate ligands, which occupy equatorial sites, are linked by interligand O-H⋯O hydrogen bonds. The dihedral angles between the mean ...
متن کامل4-[(4′-Chloromethyl-[1,1′-biphenyl]-4-yl)methyl]bis(dimethylglyoximato-κ2 N,N′)(pyridine-κN)cobalt(III)1
The title compound, [Co(C(14)H(14)Cl)(C(4)H(6)N(2)O(2))(2)(C(5)H(5)N)], is a model compound for the more complex cobalamines like vitamins B(12). The Co(III) atom is coordinated by a (4'-chloro-methyl-[1,1'-biphen-yl]-4-yl)methyl group, an N-bonded pyridine and two N,N'-bidentate dimethyl-glyoximate ligands in a distorted octa-hedral geometry. The glyoximate ligands exhibit intra-molecular O-H⋯...
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عنوان ژورنال:
دوره 68 شماره
صفحات -
تاریخ انتشار 2012