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- Title
Isolation of a Tetranuclear Intermediate Complex in the Synthesis of Paddlewheel-Type Dirhodium Tetraacetate.
- Authors
Kataoka, Yusuke; Yano, Natsumi; Kawamoto, Tatsuya; Handa, Makoto
- Abstract
To investigate the detailed mechanism of formation of the paddlewheel-type dirhodium tetraacetate [Rh2(O2CCH3)4- (L)2] ([1-(L)2]; L = axial- coordinated solvent ligand), we performed a step-by-step synthesis. The isolated red intermediate complex [Rh4(μ-Cl)4(O2CCH3)4(L)4] ([2-(L) 4]) was characterized by means of single-crystal X-ray diffraction, 1H NMR spectroscopy, infrared spectroscopy, and elemental analysis. The crystal structure of [2-(MeOH)4], which was crystallized from MeOH solution, has a unique twisted-box Rh4(μ-Cl)4 core coordinated by four μ- carboxylato bridging ligands and four MeOH molecules as axially coordinated solvent molecules. The electronic structure and absorption properties of [2-(MeOH)4] in MeOH were also carefully investigated both experimentally and theoretically.
- Subjects
SOLVENTS; RHODIUM catalysts; CARBOXYLATES; CHEMICAL synthesis; SINGLE crystals; INFRARED spectroscopy
- Publication
European Journal of Inorganic Chemistry, 2015, Vol 2015, Issue 34, p5650
- ISSN
1434-1948
- Publication type
Article
- DOI
10.1002/ejic.201500955