Poly[[tris-(?(2)-4,4'-bipyridine N,N'-di-oxide)hexa-nitratodigadolinium(III)] dichloro-methane disolvate].

ABSTRACT: The title one-dimensional coordination network, {[Gd(2)(NO(3))(6)(C(10)H(8)N(2)O(2))(3)]·2CH(2)Cl(2)}(n), is isostructural with the previously reported Tb and Tl coordination networks and to its Eu analog. The Gd(III) cation is coordinated in a distorted tricapped trigonal-prismatic fashion by nine O atoms from three bridging 4,4'-bipyridine N,N'-dioxide ligands and three chelating nitrate anions. None of the atoms lie on a special position, but there is an inversion center located between the rings of one of the ligands. The network topology is ladder-like, and each ladder inter-acts with six neighboring ladders through C-H?O hydrogen bonds. The packing motif of the ladders allows for the formation of channels that run parallel to the a axis; these channels are filled with CH(2)Cl(2) solvent mol-ecules that inter-act with the ladders through C-H?O hydrogen bonds.

SUBMITTER: Dillner AJ 

PROVIDER: S-EPMC3008111 | biostudies-literature | 2010 Aug

REPOSITORIES: biostudies-literature