Binuclear complexes of rhodium in oxidation state I were obtained with bifunctional ligands: hexamethylenediamine, decamethylenediamine, 2,2′-diaminodiphenyl, o-phenanthroline, and 8,8′-dihydroxy-5,5′-diquinolyl.
Mononuclear complexes of rhodium with 2,2′-diaminodiphenyl and o-phenanthroline were obtained.
The formation of mononuclear complexes passes through the stage of binuclear complex formation, followed by rupture of the rhodium-nitrogen bond in the presence of excess ligand. It was proposed that one of the factors causing the formation of mononuclear complexes is the trans-effect of the carbonyl group.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 940–942, April, 1970.
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Karyakina, G.I., Khidekel', M.L. Carbonyl complexes of rhodium(I) with aliphatic and aromatic bifunctional ligands. Russ Chem Bull 19, 892–894 (1970). https://doi.org/10.1007/BF00867263
- Complex Formation
- Oxidation State
- Carbonyl Group