1.
Acta Crystallogr Sect E Struct Rep Online
; 67(Pt 2): m253-4, 2011 Jan 22.
Artigo
em Inglês
| MEDLINE
| ID: mdl-21522907
RESUMO
In the centrosymmetric dinuclear title complex, [Tb(2)(NO(3))(6)(C(10)H(8)N(2)O(2))(2)(CH(3)OH)(2)], the Tb atoms are bridged by the carboxyl-ate groups of the two 4-(1H-imidazol-3-ium-1-yl)benzoate (iba) ligands. The iba ligand adopts a zwitterionic form with a protonated imidazole group. The Tb atom adopts a distorted tricapped trigonal-prismatic coordination geometry and is coordinated by six O atoms of three chelating nitrate ions, one O atom of the methanol mol-ecule and two O atoms of two iba ligands. The intra-molecular Tbâ¯Tb separation is 5.1419â (3)â Å. O-Hâ¯O and N-Hâ¯O hydrogen bonds connect complex mol-ecules into a two-dimensional network.