An Electroreductive Approach to Radical Silylation via the Activation of Strong Si–Cl Bond
作者:Lingxiang Lu、Juno C. Siu、Yihuan Lai、Song Lin
DOI:10.1021/jacs.0c10899
日期:2020.12.23
In this context, reactions mediated by silyl radicals have become increasingly attractive but methods for accessing these intermediates remain limited. We present a new strategy for silyl radical generation via electroreduction of readily available chlorosilanes. At highly biased potentials, electrochemistry grants access to silyl radicals through energetically uphill reductive cleavage of strong
fluorescence of the zincporphyrin moiety in each dyad was quenched by the electrontransfer to the fullerene moiety. The transient absorption measurements revealed that the final state of the excited-state process was a radical ion pair with a radical cation on the zincporphyrin moiety and a radical anion on the fullerene moiety as a result of the charge separation. The charge separation and charge recombination
A novel skeletalrearrangement of tetrasilanes in the palladium catalysed reaction with aryl isocyanides gives 3,3-disilyl-2,4-disila-1-azacyclobutane derivatives, the structure of one example of which has been determined by X-ray crystallography.
作者:Rebekka S. Klausen、Jonathan R. Widawsky、Michael L. Steigerwald、Latha Venkataraman、Colin Nuckolls
DOI:10.1021/ja211677q
日期:2012.3.14
Bulk silicon, the bedrock of information technology, consists of the deceptively simple electronic structure of just Si-Si σ bonds. Diamond has the same lattice structure as silicon, yet the two materials have dramatically different electronic properties. Here we report the specific synthesis and electrical characterization of a class of molecules, oligosilanes, that contain strongly interacting Si-Si