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Updated: Jun 2, 2026

Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
Bis{2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolato-κO,O}tris-(nitrato-κO,O')methano-lsamarium(III)
1Jinhua College of Vocation and Technology, Jinhua, Zhejiang 321017, People's Republic of China.
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.
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