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Stepwise Formation of a 1,3-Butadiene Analogue of Mixed Heavier Group 15 Elements

Seidl, Michael ; Balázs, Gábor ; Timoshkin, Alexey Y. ; Scheer, Manfred


The reaction of the phosphinidene complex [Cp*P{ W(CO)(5)}(2)] (1a) with di-tert-butylcarboimidophosphene leads to the P-C cage compound 6 and the Lewis acid-base adduct [Cp*P{W(CO)(5)}(2)(CNtBu)] (2a). In contrast, the arsinidene complex shows a different reactivity. At low temperatures, the arsaphosphene complex [{W(CO)(5)}{eta(2)-(Cp*)As=P(tBu)}{W( CO)(5)}] (3) is formed. At these ...


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