Research Article: catena-Poly[[[tetra­aqua­neodymium(III)]-di-μ-isonicotinato] chloride]

Date Published: February 01, 2012

Publisher: International Union of Crystallography

Author(s): Jun-Hui Xue, Xiao-Hui Hua, Chun-Ping Li, Yi-Zhuang Xu, Jin-Guang Wu.


In the title complex, {[Nd(C6H4NO2)2(H2O)4]Cl}n, the NdIII cation is located on a twofold rotation axis and coordinated by four isonicotiniate anions and four water mol­ecules in a distorted square-anti­prismatic geometry. The carboxyl­ate groups of the isonicotinate anions bridge the NdIII cations, forming polymeric chains running along the c axis. The Cl− anion is located on a twofold rotation axis and is linked to the polymeric chains via O—H⋯Cl hydrogen bonding. Inter­molecular O—H⋯O and O—H⋯N hydrogen bonds are also present in the crystal structure.

Partial Text

For some crystal structures of related lanthanide-isonicotinic acid complexes, see: Chen & Fukuzumi (2009 ▶); Ma et al. (1999 ▶); Han et al. (2010 ▶); Kay et al. (1972 ▶); Duan et al. (2010 ▶); Jia et al. (2008 ▶); Cheng et al. (2007 ▶); Liu et al. (2006 ▶); Chai et al. (2010 ▶).