Syntheses and coordination studies of 2-(diphenylphosphinomethyl)pyridine and its oxide towards mercury(II)
摘要:
Several coordination complexes of mercury(II) have been synthesized by the reaction of mercury(II) salts with 2-(diphenylphosphinomethyl)pyridine (L1) and its corresponding oxide (12). The synthesized complexes were fully characterized by elemental analysis and multinuclear NMR spectroscopy techniques. The crystal structures were determined by single-crystal X-ray crystallography. Different geometries were observed around the metal center, including distorted trigonal-pyramidal (1,3), distorted tetrahedral (2) and distorted octahedral (4,5), with the degree of distortion depending on the steric effects and the chelating capability of 2-(diphenylphosphinomethyl)pyridine and its oxide. (C) 2012 Elsevier Ltd. All rights reserved.