期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 20, 期 20, 页码 6162-6170出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201303760
关键词
alkynes; density functional theory; gold; hydroamination; N-heterocyclic carbenes
A series of six- and seven-membered expanded-ring N-heterocyclic carbene (er-NHC) gold(I) complexes has been synthesized using different synthetic approaches. Complexes with weakly coordinating anions [(er-NHC)AuX] (X-=BF4-, NTf2-, OTf-) were generated in solution. According to their (CNMR)-C-13 spectra, the ionic character of the complexes increases in the order X-=Cl-
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