Diaqua-bis-[5-(pyrazin-2-yl-κN(1))-3-(pyridin-4-yl)-1H-1,2,4-triazol-1-ido-κN(1)]cobalt(II) methanol disolvate

Yan Bi; Na Wu; Jing Chen

doi:10.1107/S160053681201495X

Diaqua-bis-[5-(pyrazin-2-yl-κN(1))-3-(pyridin-4-yl)-1H-1,2,4-triazol-1-ido-κN(1)]cobalt(II) methanol disolvate

Acta Crystallogr Sect E Struct Rep Online. 2012 May 1;68(Pt 5):m600. doi: 10.1107/S160053681201495X. Epub 2012 Apr 18.

Authors

Yan Bi¹, Na Wu, Jing Chen

Affiliation

¹ College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, People's Republic of China.

Abstract

The Co(II) ion in the title mononuclear compound, [Co(C(11)H(7)N(6))(2)(H(2)O)(2)]·2CH(3)OH, is located on an inversion center and is six-coordinated in a distorted octa-hedral geometry defined by four N atoms from two deprotonated 5-(pyrazin-2-yl-κN)-3-(pyridin-4-yl)-1H-1,2,4-triazol-1-ide (ppt) ligands and two water mol-ecules. In the crystal, the complex mol-ecules and lattice methanol mol-ecules are linked via O-H⋯N and O-H⋯O hydrogen bonds, generating a two-dimensional supra-molecular network parallel to (001). π-π inter-actions between the triazole and pyrazine rings and between the pyridine rings are present [centroid-centroid distances = 3.686 (3) and 3.929 (4) Å, respectively].