Synthesis and characterization of cyano complexes of oxotungsten(IV) with morpholinomethyl urea and related ligands
摘要:
The synthesis and characterization of complexes, (Ph3P)(2)NH2[WO(CN)(3)L-L] center dot 3H(2)O and Cs[WO(CN)(3)L-L] center dot H2O (where L-L = morpholinomethylurea, morpholinomethylthiourea, piperidinomethylurea, piperidinomethylthiourea, pyrrolidinomethylurea, and pyrrolidinomethythiourea) are presented. The complexes have been prepared by the reaction of K3Na[WO2(CN)(4)] center dot 6H(2)O with morpholinomethylurea and related ligands in aqueous solution around a pH of 7. These have been isolated as bis(triphenylphospine)imminium or cesium salts. The complexes have been characterized by elemental analysis, IR, UV-Vis spectra, magnetic susceptibility and conductivity measurements in addition to TGA/DTA.
Synthesis and characterization of some oxodiperoxo molybdenum(VI) complexes of Morpholinomethyl urea and related ligands
作者:H. N. Sheikh、A. Hussain、B. L. Kalsotra
DOI:10.1134/s003602360605007x
日期:2006.5
The oxodiperoxo complexes of Mo(VI) of the type [MoO(O-2)(2)L], where L = Morpholinomethyl urea, morpholinomethyl thiourea, piperidinomethyl urea, piperidinomethyl thiourea, pyrrolidinomethyl urea, and pyrrolidinomethyl thiourea have been synthesized and characterized by elemental analysis, molar conductance, IR, UV-Vis, and TGA/DTA techniques. It is shown that the ligands coordinate to the metal ion in a symmetrical bidentate fashion through heterocyclic nitrogen and carbonyl oxygen or thiocarbonyl sulfur. Thermal studies indicate continuous weight loss until a stable oxide is formed.
Synthesis and characterization of cyano complexes of oxotungsten(IV) with morpholinomethyl urea and related ligands
作者:M. S. Pathania、H. N. Sheikh、B. L. Kalsotra
DOI:10.1134/s0036023606090075
日期:2006.9
The synthesis and characterization of complexes, (Ph3P)(2)NH2[WO(CN)(3)L-L] center dot 3H(2)O and Cs[WO(CN)(3)L-L] center dot H2O (where L-L = morpholinomethylurea, morpholinomethylthiourea, piperidinomethylurea, piperidinomethylthiourea, pyrrolidinomethylurea, and pyrrolidinomethythiourea) are presented. The complexes have been prepared by the reaction of K3Na[WO2(CN)(4)] center dot 6H(2)O with morpholinomethylurea and related ligands in aqueous solution around a pH of 7. These have been isolated as bis(triphenylphospine)imminium or cesium salts. The complexes have been characterized by elemental analysis, IR, UV-Vis spectra, magnetic susceptibility and conductivity measurements in addition to TGA/DTA.