Synthesis, structure and aromaticity of metallapyridinium complexes
作者:Yilun Wang、Yue Sun、Wei Bai、Yan Zhou、Xiao Bao、Yang Li
DOI:10.1039/d1dt04096k
日期:——
The first rhena-analogues of pyridinium (cyclopropametalla-2-isoquinolinium complexes) are obtained from o-ethynyl benzonitriles. Structural analysis and DFT calculations confirm their aromatic nature. Compared to rhenapyrylium, rhenapyridinium has a slightly stronger Hückel π-aromaticity, while a chlorine substituent on the rhenapyridinium ring decreases its aromaticity, which is revealed by NICS