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Trans-Bis[4-amino-3,5-bis-(2-pyrid-yl)-4H-1,2,4-triazole-?N]diaqua-cobalt(II) bis-(3-carb-oxy-5-nitro-benzoate).

ABSTRACT: The title complex, [Co(C(12)H(10)N(6))(2)(H(2)O)(2)](C(8)H(4)NO(6))(2), is composed of a mononuclear cobalt(II) cation and two 3-carb-oxy-5-nitro-benzoate anions for charge balance. In the cation, the Co(II) atom is six-coordinated in a distorted octa-hedral geometry. It bonds to two O atoms of two water mol-ecules, and two pairs of N atoms from two 4-amino-3,5-bis-(2-pyrid-yl)-4H-1,2,4-triazole mol-ecules, which behave as bidentate chelating ligands. There are intra-molecular N-H?N hydrogen bonds in the cation. In the crystal, there are a number of inter-molecular N-H?O and O-H?O hydrogen bonds, as well as inter-molecular ?-? stacking inter-actions [centroid-centroid distances = 3.657?(2) and 3.847?(2)?Å], that link the mol-ecules into two-dimensional networks lying parallel to the ab plane. The presence of C-H?O inter-actions leads to the formation of a three-dimensional network.

SUBMITTER: Wang X 

PROVIDER: S-EPMC3201337 | biostudies-literature | 2011 Oct

REPOSITORIES: biostudies-literature

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trans-Bis[4-amino-3,5-bis-(2-pyrid-yl)-4H-1,2,4-triazole-κN]diaqua-cobalt(II) bis-(3-carb-oxy-5-nitro-benzoate).

Wang Xi X   Shao Chun-Fu CF   Li Cheng-Peng CP  

Acta crystallographica. Section E, Structure reports online 20110914 Pt 10

The title complex, [Co(C(12)H(10)N(6))(2)(H(2)O)(2)](C(8)H(4)NO(6))(2), is composed of a mononuclear cobalt(II) cation and two 3-carb-oxy-5-nitro-benzoate anions for charge balance. In the cation, the Co(II) atom is six-coordinated in a distorted octa-hedral geometry. It bonds to two O atoms of two water mol-ecules, and two pairs of N atoms from two 4-amino-3,5-bis-(2-pyrid-yl)-4H-1,2,4-triazole mol-ecules, which behave as bidentate chelating ligands. There are intra-molecular N-H⋯N hydrogen bon  ...[more]

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