Crystal structure of di-aqua-tris-(benzohydrazide-?2 N,O)(isophthalato-?O)samarium(III) nitrate.

ABSTRACT: The first benzohydrazide complex of a lanthanide is reported. In the title compound, [Sm(C8H4O4)(C7H8N2O)3(H2O)2]NO3, systematic name di-aqua-tris-(benzohydrazide-?2 N,O)(isophthalato-?O)samarium(III) nitrate, the SmIII ion is nine-coordinated in a distorted tricapped trigonal-prismatic geometry by three oxygen atoms and three nitro-gen atoms from three benzhydrazide (bzz) ligands, one oxygen atom from the isophthalate (itp2-) ligand, and two oxygen atoms from coordinated water mol-ecules. The nitrate group is disordered over two sets of sites with occupancy factors of 0.310?(17) and 0.690?(17). In the crystal, adjacent mol-ecules are linked into chains via pairs of O-H?O and N-H?O hydrogen bonds between the carboxyl-ate acceptor and the coordinated water and amine NH2 donors. Mol-ecules are further stacked by ?-? inter-actions involving the benzene ring of the itp2- ligands, forming double chains that extend in the b-axis direction. These double chains are further linked into a three-dimensional supra-molecular network via hydrogen bonds (O-H?O, N-H?O and C-H?O) between the complex mol-ecule and the nitrate groups along with C-H?? and ?-? inter-actions involving the benzene rings of the bzz and itp2- ligands.

SUBMITTER: Theppitak C 

PROVIDER: S-EPMC6281109 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature