Bis{2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolato-?O,O}tris-(nitrato-?O,O')methano-lsamarium(III).

ABSTRACT: The asymmetric unit of the title compound, [Sm(NO(3))(3)(C(15)H(15)NO(2))(2)(CH(3)OH)], contains two Schiff base 2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolate (HL) ligands, three nitrate ions and one methanol mol-ecule that binds to the nine-coordinate samarium(III) ion via its O atoms. The HL ligands chelate with a strong Sm-O(deprotonated phenolic) bond and a weak Sm-O(meth-oxy) contact. The latter can be inter-preted as the apices of the bicapped square-anti-prismatic Sm(III)O(9) polyhedron. The Schiff base ligands are in a zwitterionic state with the phenolic H atom transferred to the imine N atom. O-H?O, O-H?N and N-H?O hydrogen bonds lend stability to the structure. One O atom of one nitrate group is equally disordered over two positions.

SUBMITTER: Guo HM 

PROVIDER: S-EPMC3051746 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature