Tris[6-methoxy-2-(phenyliminiomethyl)phenolato]-κ4O,O′;κO1-tris(thiocyanato-κN)samarium(III)

In the crystal structure of title compound, [Sm(NCS)3(C14H13NO2)3], two of the zwitterionic Schiff base 6-methoxy-2-(phenyliminiomethyl)phenolate ligands coordinate to the SmIII atom in a bidentate fashion via the phenolate and methoxy O atoms. The third Schiff base ligand is monodentate, binding on...

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Bibliographic Details
Main Authors: Guo-Di Ge, Jin-Bei Shen, Guo-Liang Zhao
Format: Article
Language:English
Published: International Union of Crystallography 2011-06-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536811016205
Description
Summary:In the crystal structure of title compound, [Sm(NCS)3(C14H13NO2)3], two of the zwitterionic Schiff base 6-methoxy-2-(phenyliminiomethyl)phenolate ligands coordinate to the SmIII atom in a bidentate fashion via the phenolate and methoxy O atoms. The third Schiff base ligand is monodentate, binding only through the phenolate O atom. The coordination sphere of the eight-coordinate Sm atom is completed by the three independent thiocyanate ions binding through their N atoms, affording a square-antiprismatic geometry. An S atom of one of the thiocyanate anions is disordered over two sites in a 0.85:0.15 ratio. In the phenolate ligands, the proton of the phenolic hydroxy group transfers to the imine N atom. This proton is also involved in an intramolecular N—H...O hydrogen bond that imposes a nearly planar conformation on each ligand, with dihedral angles of 1.75 (4), 3.68 (5) and 3.86 (4)° between the aromatic rings of each ligand.
ISSN:1600-5368