A Fully Phosphane‐Substituted Disilene. (12th April 2017)

• Record Type: Journal Article
• Authors: Izod, Keith; Evans, Peter; Waddell, Paul G.
• Is Part Of: Angewandte Chemie. Volume 129:Number 20(2017)
• Page Start: 5685
• Page End: 5689
• Publication Date: 2017-04-12
• Subjects: Dichtefunktionalrechnungen -- Kristallstrukturen -- Mehrfachbindungen -- Phosphor -- Silicium; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201701867
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: There is growing interest in compounds containing functionalized E=E multiple bonds (E=Si, Ge, Sn, Pb) because of their potential to exhibit novel physical and chemical properties. However, compounds containing multiple functionalizations are rare, with scarcity increasing with increasing degree of substitution. The first ditetrelene R2 E=ER2 in which the E=E bond is substituted by four heteroatoms (other than Si) is described. The tetraphosphadisilene {(Mes)2 P}2 Si=Si{P(Mes)2 }2 (7 ) is readily isolated from the reaction between SiBr4 and [(Mes)2 P]Li, the latter of which acts as a sacrificial reducing agent. The structure of7 is presented, while the bonding in, and stability of7 were probed using DFT calculations.