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Visible‐Light‐Promoted Au I to Au III Oxidation in Triazol‐5‐ylidene Complexes
Author(s) -
MendozaEspinosa Daniel,
RendónNava David,
AlvarezHernández Alejandro,
AngelesBeltrán Deyanira,
NegrónSilva Guillermo E.,
SuárezCastillo Oscar R.
Publication year - 2017
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201601499
Subject(s) - disproportionation , chemistry , catalysis , visible spectrum , potassium , hydrazine (antidepressant) , medicinal chemistry , rendering (computer graphics) , photochemistry , nuclear chemistry , organic chemistry , materials science , optoelectronics , chromatography , computer graphics (images) , computer science
Reaction of triazolium precursors [MIC(CH 2 ) n ‐ H + ]I − ( n =1–3) with potassium hexamethyldisilazane (KHMDS) and AuCl(SMe 2 ) generates the gold(I) complexes of the type MIC(CH 2 ) n ⋅AuI. Visible light exposure of the latter complexes promotes a spontaneous disproportionation process rendering gold(III) complexes of the type [{MIC(CH 2 ) n } 2 ⋅AuI 2 ] + I − . Both the Au I and Au III complex series were tested in the catalytic hydrohydrazination of terminal alkynes using hydrazine as nitrogen source.