Reactions and spectroscopic studies of Group 6 metal carbonyls with pyrazinecarboxamide and certain phosphine ligands

被引：5
作者：
El-Medani, SM [1 ]
Sharaby, CM
Ramadan, RM
机构：
[1] Cairo Univ, Fac Sci, Dept Chem, El Faiyum Branch, El Faiyum, Egypt
[2] El Azhar Univ Girls, Fac Sci, Dept Chem, Cairo, Egypt
[3] Ain Shams Univ, Fac Sci, Dept Chem, Cairo, Egypt
来源：
JOURNAL OF COORDINATION CHEMISTRY | 2005年 / 58卷 / 14期
关键词：
chromium; metal carbonyl; Phosphines; mixed ligands; spectra;
D O I：
10.1080/00958970500130774
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Substitution reactions of phosphine ligands, triphenylphosphine (PPh3), tri(m-chlorophenyl)phosphine (m-ClPPh3 tri(p-methoxyphenyl)phosphine (p-MeOPPh3) and tri(benzyl) phosphine (PBz(3)) with [M(CO)(4)(PCA)] (M=Cr, Mo and W, PCA=pyrazinecarboxamide) were found to be dependent on the type of metal and phosphine ligand. The complexes were characterized by elemental analysis, mass spectrometry, and IR and H-1 NMR spectroscopy. UV-vis spectra of the complexes in different solvents showed bands due to metal-to-ligand charge transfer.
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收藏
页码：1241 / 1248
页数：8
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