Tetra-kis(?-4-methoxy-benzoato)bis-[(4-methoxy-benzoato)(1,10-phenan-throline)terbium(III)].

ABSTRACT: In the title dinuclear complex, [Tb(2)(C(8)H(7)O(3))(6)(C(12)H(8)N(2))(2)], each Tb(III) ion is eight-coordinated by two N atoms from a 1,10-phenanthroline ligand and six O atoms from the carboxyl-ate groups of five 4-methoxy-benzoate ligands in a distorted square-anti-prismatic geometry. All six 4-methoxy-benzoate ligands act in a bidentate mode, two coordinating to one Tb center each and the other four bridging two Tb centers [Tb?Tb separation = 4.3144?(6)?Å]. In the crystal, inter-molecular ?-? inter-actions between the aromatic rings of 1,10-phenanthroline and 4-methoxy-benzoate ligands [centroid-centroid distance = 3.742?(9)?Å] link two mol-ecules into a centrosymmetric dimer. Weak inter-molecular C-H?O hydrogen bonds help to consolidate the crystal packing.

SUBMITTER: Gao ZH 

PROVIDER: S-EPMC2970326 | biostudies-literature | 2009 Sep

REPOSITORIES: biostudies-literature