Chemistry of Vinylidene Complexes. XVII. The First μ-vinylidene Complex with the Re-Pt Bond: Synthesis, Spectroscopic Study and Structure of (η5-C5H5)(CO)2RePt(μ-C=CHPh)(PPh3)2

Abstract

При взаимодействии Cp(CO)2Re=C=CHPh (1) с Pt(PPh3)4 получен μ-винилиденовый комплекс Cp(CO)2RePt(μ-C=CHPh)(PPh3)2 (2). Исследованы спектры ИК и ЯМР 1Н, 13С и 31P соединения 2. Кристаллическая и молекулярная структура комплекса 2 установлена методом РСА [длины связей Re—Pt 2.7360(3), Re—C1 2.083(5), Pt—C1 2.008(4), C1=C2 1.351(6) Å; валентные углы Pt-C1-C2 133.5(4), Re-C1-C2 141.6(4)°]. Обсуждается влияние природы атома металла M = Re, Mn на структурные и спектральные характеристики комплексов Cp(CO)2MPt(μ-C=CHPh)(PPh3)2.The interaction between Cp(CO)2Re=C=CHPh (1) and Pt(PPh3)4 afforded the μ-vinylidene complex Cp(CO)2RePt(μ-C=CHPh)(PPh3)2 (2). The IR and 1H, 13C and 31P NMR spectra of complex 2 were studied. Crystal and molecular structure of complex 2 has been determined by an X-ray single crystal analysis. The bond distances and angles are Re—Pt 2.7360(3), Re—C1 2.083(5), Pt—C1 2.008(4), C1=C2 1.351(6) Å; Pt-C1-C2 133.5(4), Re-C1-C2 141.6(4)°. The influence of the nature of the M = Re, Mn atoms on structural and spectroscopic characteristics of complexes Cp(CO)2MPt(μ-C=CHPh)-(PPh3)2 has been considered