A resorcinarene-based tetrabenzoimidazolylidene complex of rhodium
| Autor: | Pietro Vidossich, Sheila Ruiz-Botella, Eduardo Peris, Gregori Ujaque |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Chemistry
Poly-NHC metal complexes Benzoimidazoles Cavitand chemistry.chemical_element Molecule analysis Vase-kite interconversion Resorcinarene Ring (chemistry) Rhodium Inorganic Chemistry Metal Crystallography chemistry.chemical_compound visual_art visual_art.visual_art_medium Molecule Tetrabenzoimidazolium-resorcinarene cavitand Conformational isomerism Carbene Non-interconverting conformational isomers |
| Zdroj: | Dalton Transactions. 49:3181-3186 |
| ISSN: | 1477-9234 1477-9226 |
| DOI: | 10.1039/d0dt00060d |
| Popis: | A tetrabenzoimidazolium-resorcinarene cavitand was used for the preparation of a tetra-benzoimidazolylidene of rhodium, which is unprecedented in the field of poly-NHC metal complexes. Both, the experimental and computational analysis of the molecule reveal a distorted vase conformation as the most stable one, although several non-interconverting conformational isomers due to the restricted rotation about the Rh-C(carbene) bond coexist in the product. There is a fluxional behaviour involving the vase-kite interconversion. The main interactions between the arms of the cavitand are mostly concentrated on the terminal organometallic fragments attached to the NHC, along with those between -CH3 and N-heterocyclic carbene ring from benzoimidazoles. |
| Databáze: | OpenAIRE |
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