Synthesis and characterization of bi(metallacycloprop-1-ene) complexes†
Wei
Bai, 
ab
Long Yiu
Tsang,
a
Yang
Li,
*bc
Herman H. Y.
Sung,
a
Ian D.
Williams
*a
and
Guochen
Jia
*a
ab
Long Yiu
Tsang,
a
Yang
Li,
*bc
Herman H. Y.
Sung,
a
Ian D.
Williams
*a
and
Guochen
Jia
*a
Abstract
In all previously reported metallacycloprop-1-ene or η2-vinyl complexes, the metal center bears only one vinyl moiety. We have now successfully synthesized and structurally characterized the first complexes bearing two η2-vinyl moieties or spiro bi(metallacycloprop-1-ene) complexes from reactions of alkynes with rhenium phosphine complexes. Computational studies indicate that the metallacycloprop-1-ene rings are aromatic and the complexes represent a rare σ-type spirometalla-aromatic system.
- This article is part of the themed collections: Most popular 2023 inorganic chemistry articles, 2023 Chemical Science HOT Article Collection and Emerging Frontiers in Aromaticity
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