Synthesis, characterisation and thermal studies of ruthenium(II) carbonyl complexes of functionalised tripodal phosphine chalcogen donor ligands, [CH3C(CH2P(X)Ph2)3], where X=Se, S, O
作者:Biswajit Deb、Bhaskar Jyoti Sarmah、Bibek Jyoti Borah、Dipak Kumar Dutta
DOI:10.1016/j.saa.2008.09.018
日期:2009.3
The polymeric ruthenium(II) carbonyl complex, [Ru(CO)(2)Cl(2)](n) reacts with 1,1,1-tris-(diphenylphosphinomethyl)ethane trichalcogenide ligands, [CH(3)C(CH(2)P(X)Ph(2))(3)], where X=Se(a), S(b) and O(c) in 1:1 (metal:ligand) molar ratio to afford hexa-coordinated complexes of the type eta(2)-(X,X)-[Ru(CO)(2)Cl(2)P(3)X(3)] (1a-c). The complexes 1a-c exhibit two equally intense nu(CO) bands in the range
聚合钌(II)羰基络合物[Ru(CO)(2)Cl(2)](n)与1,1,1-三-(二苯基膦甲基)乙烷三卤化配体[CH(3)C(CH) (2)P(X)Ph(2))(3)],其中X = Se(a),S(b)和O(c)以1:1(金属:配体)摩尔比提供六配位类型eta(2)-(X,X)-[Ru(CO)(2)Cl(2)P(3)X(3)]的络合物(1a-c)。配合物1a-c在1979-2060cm(-1)范围内显示出两个相等强度的nu(CO)带,表明两个末端羰基的顺式排列。包含不同配体的nu(CO)频率值通常遵循以下顺序:P(3)O(3)> P(3)S(3)> P(3)Se(3),可以在“软硬”(Ru(II)-O)和“软-软”(Ru(II)-S / Se)相互作用的术语。配合物已通过元素分析,质量,(1)H,(31)P,(77)Se和(13)C NMR光谱进行了表征。