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Hydrogenolysis of Polysilanes Catalyzed by Low‐Valent Nickel Complexes
Author(s) -
Pribanic Bruno,
Trincado Monica,
Eiler Frederik,
Vogt Matthias,
ComasVives Aleix,
Grützmacher Hansjörg
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201907525
Subject(s) - hydrogenolysis , dehydrogenation , silanes , catalysis , nickel , chemistry , hydride , photochemistry , polymer chemistry , organic chemistry , silane , hydrogen
The dehydrogenation of organosilanes (R x SiH 4− x ) under the formation of Si−Si bonds is an intensively investigated process leading to oligo‐ or polysilanes. The reverse reaction is little studied. To date, the hydrogenolysis of Si−Si bonds requires very harsh conditions and is very unselective, leading to multiple side products. Herein, we describe a new catalytic hydrogenation of oligo‐ and polysilanes that is highly selective and proceeds under mild conditions. New low‐valent nickel hydride complexes are used as catalysts and secondary silanes, RR′SiH 2 , are obtained as products in high purity.