Element–Hydrogen Bond Activations at Cationic Platinum Centers To Produce Silylene, Germylene, Stannylene, and Stibido Complexes

Element–Hydrogen Bond Activations at Cationic Platinum Centers To Produce Silylene, Germylene, Stannylene, and Stibido Complexes

Reactions of [(dippe)­PtMe­(Et2O)]­[BArf 4] (4[BArf 4], dippe = 1,2-bis­(diisopropylphosphino)­ethane; Arf = 3,5-(CF3)2C6H3) with Mes2EH2 (Mes = mesityl) liberate methane and produce silylene, germylene, or stannylene products [(dippe)­Pt­(H)EMes2]­[BArf 4] (E = Si, 1[BArf 4]; Ge, 8; Sn, 9). In con...

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Bibliographic Details
Published in:Organometallics Vol. 38; no. 9; pp. 2053 - 2061
Main Authors: Waterman, Rory, Handford, Rex C, Tilley, T. Don
Format: Journal Article
Language:English
Published: American Chemical Society 13-05-2019
Online Access:Get full text
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Summary:Reactions of [(dippe)­PtMe­(Et2O)]­[BArf 4] (4[BArf 4], dippe = 1,2-bis­(diisopropylphosphino)­ethane; Arf = 3,5-(CF3)2C6H3) with Mes2EH2 (Mes = mesityl) liberate methane and produce silylene, germylene, or stannylene products [(dippe)­Pt­(H)EMes2]­[BArf 4] (E = Si, 1[BArf 4]; Ge, 8; Sn, 9). In contrast, treatment of 4[BArf 4] with tertiary silanes HSiR3 (R = Ph, Et, OEt) failed to give the expected cationic silyl complexes but instead produced the bridging hydride [(dippe)­Pt­(μ-H)]2[BArf 4]2 (10) along with the corresponding disilane Si2R6. Complex 10 reacts with primary stibines RSbH2 (R = Mes, dmp) to afford dimeric stibido complexes [(dippe)­Pt­(μ-SbHR)]2[BArf 4]2 (R = Mes, 11; dmp, 12) via Sb–H bond activation.
ISSN:0276-7333
1520-6041
DOI:10.1021/acs.organomet.9b00097