Dichlorotetrakis(pyridine)rhodium(III) chloride explained
Dichlorotetrakis(pyridine)rhodium(III) chloride is the chloride salt of the coordination complex with the formula [RhCl<sub>2</sub>(pyridine)<sub>4</sub>]+. Various hydrates are known, but all are yellow solids. The tetrahydrate initially crystallizes from water.[1] The tetrahydrate converts to the monohydrate upon vacuum drying at 100 °C.
The hydrates of [RhCl<sub>2</sub>(pyridine)<sub>4</sub>]Cl are prepared by heating rhodium trichloride with an excess of pyridine in the presence of a catalytic amount of a reductant.[2]
Related complexes
The molecular complex RhCl3(pyridine)3 is an intermediate in the synthesis of [RhCl<sub>2</sub>(pyridine)<sub>4</sub>]Cl.[3]
References
- 10.1007/s10947-009-0046-7. Structure and thermal properties of RhPy4Cl2]X Complex Salts (X = Cl−, ReO4−, ClO4−). 2009. Vasilchenko. D. B.. Baidina. I. A.. Filatov. E. Yu.. Korenev. S. V.. Journal of Structural Chemistry. 50. 2. 335–342.
- 10.1002/9780470132418.ch11. trans-Dichlorotetra(pyridine)rhodium(III) Salts. Inorganic Syntheses. 1967. Gillard. R. D.. Wilkinson. G. W.. 64–67. 10.
- 10.1107/S0108270184007848. Structure of mer-Trichlorotris(pyridine)rhodium(III), RhCl3(C5H5N)3. 1984. Acharya. K. R.. Tavale. S. S.. Guru Row. T. N.. Acta Crystallographica Section C Crystal Structure Communications. 40. 8. 1327–1328.