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Alkyne Addition to a Metal‐Stabilized Thiyl Radical: Carbon–Sulfur Bond Formation between 1‐Octyne and [Ru(SP) 3 ] +
Author(s) -
Ouch Kagna,
Mashuta Mark S.,
Grapperhaus Craig A.
Publication year - 2012
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201101016
Subject(s) - chemistry , alkyne , sulfur , cyclic voltammetry , yield (engineering) , electrochemistry , metal , ruthenium , carbon fibers , nuclear magnetic resonance spectroscopy , medicinal chemistry , photochemistry , organic chemistry , catalysis , electrode , materials science , composite material , composite number , metallurgy
The metal‐stabilized thiyl radical complex [Ru(SP) 3 ] + , [Ru‐ 1 ] + , {SP = 2‐(diphenylphosphanyl)benzenethiolate} adds 1‐octyne across the cis ‐sulfur sites to yield the S ‐alkylated dithiolene product [Ru‐ 1· octyne] + . The product complex exists as a pair of inseparable geometric isomers, which were characterized by X‐ray crystallography, 31 P NMR spectroscopy, and cyclic voltammetry. By using electrochemical methods, the rate constant for 1‐octyne addition was determined as 8.7 × 10 3 M –1 s –1 .