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Unsymmetrical sp 2 ‐sp 3 Disilenes
Author(s) -
Bisai Milan Kumar,
Das Tamal,
Vanka Kumar,
Gonnade Rajesh G.,
Sen Sakya S.
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202107847
Subject(s) - silylene , yield (engineering) , reactivity (psychology) , silicon , chemistry , computational chemistry , physics , organic chemistry , thermodynamics , medicine , alternative medicine , pathology
Disilenes with differently coordinated silicon atoms are not known. Here, we have shown the high yield synthesis of a range of disilenes ( 2 – 4 and 6 ) upon reaction of a hypersilyl silylene PhC(N t Bu) 2 SiSi(SiMe 3 ) 3 ( 1 ) with aliphatic chlorophosphines. The most striking characteristic of these disilenes is the presence of two differently coordinated Si atoms (one is three‐coordinated, the other four‐coordinated). The analogous reaction with Ph 2 PCl did not afford the desired disilene, but, surprisingly, led to the first tetraphosphinosilane ( 8 ). DFT calculations were performed to understand the bonding in disilenes and differences in reactivity of the complexes.