877080-07-4Relevant academic research and scientific papers
Synthesis and spectroscopic studies of group 6 metal carbonyl complexes with a novel cyclotriphosphazane ligand
Denker, Mitchell W.,Helm, Monte L.
, p. 227 - 231 (2005)
The syntheses and spectroscopic properties of Cr(0) and Mo(0) carbonyl complexes involving the novel cyclotriphosphazane (C6H 4N2)(PPh)3C6H4(NH) 2 (1) are reported. The cyclotriphosphazane 1 is an interesting cyclic ligand that contains two unique types of phosphorus coordination environments as well as potential N-H reactivity. Reactions of 1 with one, two and excess molar equivalents of M(CO)5(THF) (M = Cr, Mo and W) were studied, leading to two new cyclophosphazane metal complexes (C 6H4N2)(PPh)3C6H 4(NH)2·2M(CO)5 (M = Cr, Mo), where metal coordination is observed only to the phosphorus atoms that have their lone pair of electrons oriented exodentate to the phosphazane ring. The structures for the two new metal complexes are supported by 1H, 13C{ 1H} and 31P{1H} NMR spectroscopy. The reaction of 1 with W(CO)5(THF) yields a mixture of ring opened and decomposition phosphazane products. Copyright
