The photo-isomerization of the cyclononatetraenyl ligand and related rare earth complexes.

ABSTRACT: The cyclononatetraenyl (Cnt) ligand is a large monoanionic ligand. It is easily synthesized by ring expansion after cyclopropanation of the cyclooctatetraenyl (Cot) ligand. The Cnt ligand can be reported as the cis-cis-cis-cis (cis) isomer, where the aromatic ring is flat, and all carbon atoms form a homogenous ring, and as the cis-cis-cis-trans (trans) isomer, where one carbon places itself inside the ring. The isomerization from the trans to the cis form has been reported numerous times in previous articles, but no quantitative analysis has been proposed due to contradictory data. This article proposes a detailed analysis involving light to rationalize this intrigue concerning isomerization. A careful syn

SUBMITTER: Pedussaut L 

PROVIDER: S-EPMC11575527 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature