title: Bis(4,4''-difluoro-1,1':3',1''-terphenyl-2'-carboxyl-ato-κO)bis-(3,5-dimethyl-1H-pyrazole-κN(2))manganese(II).
abstract: In the title compound, [Mn(C(19)H(11)F(2)O(2))(2)(C(5)H(8)N(2))(2)], the Mn(2+) cation is coordinated by the N atoms of two 3,5-dimethyl-pyrazole ligands and carboxyl-ate O atoms from two 4,4''-difluoro-1,1':3',1''-terphenyl-2'-carboxyl-ato ligands, forming an MnN(2)O(2) polyhedron with a slightly distorted tetra-hedral coordination geometry. Two intra-molecular hydrogen bonds are observed between the carboxyl-ate and pyrazole ligands. The combined influence of the sterically hindered carboxyl-ate ligands and the intra-molecular hydrogen-bonding inter-actions stabilizes the title compound with a low coordination number of four. In the crystal, weak C-H⋯F and C-H⋯O hydrogen bonds are observed.
authors.affiliation: Department of Bio & Nano Chemistry, College of Natural Sciences, Kookmin University, 861-1 Jeongneung-dong, Seongbuk-gu, Seoul 136-702,  Republic of Korea.
authors.forename: Sivanesan
authors.initials: S
authors.lastname: Dharmalingam
authors.forename: Yeojin
authors.initials: Y
authors.lastname: Jeon
authors.forename: Sungho
authors.initials: S
authors.lastname: Yoon