Wu Jiang, Noonikara-Poyil Anurag, Muñoz-Castro Alvaro, Dias H V Rasika
Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, USA.
Grupo de Química Inorgánica y Materiales Moleculares, Facultad de Ingeniería, Universidad Autonoma de Chile, El Llano Subercaseaux 2801, Santiago, Chile.
Chem Commun (Camb). 2021 Feb 1;57(8):978-981. doi: 10.1039/d0cc07717h.
Ethylene complexes of gold(i) have been stabilized by electron-rich, κ2-bound tris(pyrazolyl)borate ligands. Large up-field shifts of olefinic carbon NMR resonances and relatively long C[double bond, length as m-dash]C distances of gold bound ethylene are indicative of significant Au(i) → ethylene π-backbonding relative to the analog supported by a weakly donating ligand, consistent with the computational data.
金（I）的乙烯配合物已通过富电子的、κ2配位的三（吡唑基）硼酸盐配体得以稳定。烯烃碳核磁共振共振的大幅高场位移以及与金相连的乙烯的相对较长的C═C距离表明，相对于由弱给体配体支持的类似物，存在显著的金（I）→乙烯π-反馈键，这与计算数据一致。
