Publications Repository - Gdańsk University of Technology

Page settings

polski
Publications Repository
Gdańsk University of Technology

Treść strony

Reactivity of Diimido Complexes of Molybdenum and Tungsten towards Lithium Derivatives of Diphosphanes and Triphosphanes

The reaction of R2P–P(SiMe3)Li (R = tBu, iPr) with the diimido molybdenum complex [(ArN)2MoCl2·dme] (Ar = 2,6-iPr2C6H3; dme = 1,2-dimethoxyethane) yielded the side-oncoordinated phosphanylphosphinidene anionic complexes [(2,6-iPr2C6H3N)2Mo(Cl)(η2-P=PR2)]– (7Mo, 8Mo). The thermal decomposition of [(2,6-iPr2C6H3N)2M(Cl)(η2-P=PR2)]–[M = Mo (7Mo), W (8W)] to [(2,6-iPr2C6H3N)2M(Cl)(1,2-η-tBu2P=P–PtBu2)] [M = Mo (3Mo), W (3W)] was investigated by 31P{1H} NMR spectroscopy. The reactions of [(ArN)2MCl2·dme] (Ar = 2,6-iPr2C6H3; M = Mo, W) with tBu2P–P(Li)–PtBu2 gave molybdenum and tungsten complexes[(2,6-iPr2C6H3N)2-M(Cl)(1,2-η-tBu2P=P–PtBu2)] (3Mo, 3W) bearing an unusual triphosphorus ligand. The solid-state structures of [(2,6-iPr2C6H3N)2Mo(Cl)(η2-P=PtBu2)]– (7Mo), [(2,6-iPr2C6H3N)2-Mo(Cl)(η2-P=PiPr2)]– (8Mo), [(2,6-iPr2C6H3N)2Mo(Cl)(1,2-η-tBu2P=P–PtBu2)] (3Mo) and [(2,6-iPr2C6H3N)2W(Cl)(1,2-η-tBu2P=P–PtBu2)] (3W) were established by single-crystal Xray diffraction analysis.

Authors