Dynamic Interconversion between Solomon Link and Trapezoidal Metallacycle Ensembles Accompanying Conformational Change of the Linker
| Autor: | Wen-Xi Gao, Hui-Jun Feng, Guo-Xin Jin, Yue-Jian Lin |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Conformational change
010405 organic chemistry Chemistry Ligand Organic Chemistry chemistry.chemical_element General Chemistry Metallacycle 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences Rhodium chemistry.chemical_compound Crystallography Self-assembly Solvent effects Acetonitrile Linker |
| Zdroj: | Chemistry – A European Journal. 25:15687-15693 |
| ISSN: | 1521-3765 0947-6539 |
| DOI: | 10.1002/chem.201904196 |
| Popis: | A novel template-free Cp*Rh-based molecular Solomon link has been established through selection of the flexible ligand L as a linker and the half-sandwich rhodium(III) dinuclear fragment B1 as a rigid capping unit. Furthermore, we demonstrate that the self-assembly of the Solomon link based on the flexible ligand is both solvent- and concentration-dependent: the Solomon link is formed in concentrated methanolic solutions, whereas formation of a dinuclear trapezoidal rectangle is favored at low concentrations or in acetonitrile or DMF solutions. Remarkably, alteration of the solvent or concentration can promote a unique and dynamic interconversion between the two molecular species, accompanying conformational change of the ligand. The synthetic outcomes are supported by single-crystal X-ray diffraction analysis. |
| Databáze: | OpenAIRE |
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