作者: Casey R. Wade , Tzu-Pin Lin , Ryan C. Nelson , Elizabeth A. Mader , Jeffrey T. Miller
DOI: 10.1021/JA201092G
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摘要: A cyclic stiboranyl-gold complex (1) supported by two 1,8-naphthalenediyl linkers has been synthesized and structurally characterized. The gold atom of this adopts a T-shaped geometry is separated from the antimony center only 2.76 A. Surprisingly, trivalent involved in an aurophilic interaction, phenomenon typically observed for monovalent complexes. This indicates that stiboranyl ligand possesses strong σ-donating properties making 1 electron rich. view DFT calculations as well Au L3- Sb K-edge XANES spectra which reveal may also be described aurate-stibonium derivative. In agreement with view, shows no reactivity toward halides Cl–, Br–, I–. It does, however, rapidly react F– to form unprecedented anionic aurate fluorostiborane ([2]−) isolated tetra-n-butylammonium salt. increased coordination numb...