Dichlorotetrakis(pyridine)rhodium(III) chloride

Dichlorotetrakis(pyridine)rhodium(III) chloride
Identifiers
CAS Number	14077-30-6;
3D model (JSmol)	Interactive image;
ChemSpider	140437;
EC Number	237-929-8;
PubChem CID	159721;
	InChI InChI=1S/4C5H5N.3ClH.Rh/c41-2-4-6-5-3-1;;;;/h41-5H;3*1H;/q;;;;;;;+3/p-3 Key: SIIBZAPGWNBRSK-UHFFFAOYSA-K;
	SMILES C1=CC=NC=C1.C1=CC=NC=C1.C1=CC=NC=C1.C1=CC=NC=C1.[Cl-].[Cl-].[Cl-].[Rh+3];
Properties
Chemical formula	C20H20Cl3N4Rh
Molar mass	525.66 g·mol−1
Appearance	yellow solid
Hazards
GHS pictograms
GHS Signal word	Warning
GHS hazard statements	H315, H319, H335
GHS precautionary statements	P261, P264, P271, P280, P302+352, P304+340, P305+351+338, P312, P321, P332+313, P337+313, P362, P403+233, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Dichlorotetrakis(pyridine)rhodium(III) chloride is the chloride salt of the coordination complex with the formula [RhCl₂(pyridine)₄]⁺. It is a yellow solid that crystallizes from water as the tetrahydrate,[1] which converts to the monohydrate upon vacuum drying at 100 °C. It is prepared by treating rhodium trichloride with an excess of pyridine in the presence of a catalytic amount of a reductant.[2]

Related complexes

[RhCl₃(pyridine)₃] is an intermediate in the synthesis of [RhCl₂(pyridine)₄]Cl.[3]

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References

Vasilchenko, D. B.; Baidina, I. A.; Filatov, E. Yu.; Korenev, S. V. (2009). "Structure and thermal properties of [RhPy4Cl2]X complex salts (X = Cl−, ReO 4 − , ClO 4 − )". Journal of Structural Chemistry. 50 (2): 335–342. doi:10.1007/s10947-009-0046-7.
Gillard, R..; Wilkinson, G. W. (1939). "Trans -Dichlorotetra(pyridine)Rhodium(III) Salts". trans-Dichlorotetra(pyridine)rhodium(III) Salts. Inorganic Syntheses. 1o. pp. 64–67. doi:10.1002/9780470132418.ch11. ISBN 9780470132418.
Acharya, K. R.; Tavale, S. S.; Guru Row, T. N. (1984). "Structure of mer-trichlorotris(pyridine)rhodium(III), [RhCl3(C5H5N)3]". Acta Crystallographica Section C Crystal Structure Communications. 40 (8): 1327–1328. doi:10.1107/S0108270184007848.

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[1] Vasilchenko, D. B.; Baidina, I. A.; Filatov, E. Yu.; Korenev, S. V. (2009). "Structure and thermal properties of [RhPy4Cl2]X complex salts (X = Cl−, ReO 4 − , ClO 4 − )". Journal of Structural Chemistry. 50 (2): 335–342. doi:10.1007/s10947-009-0046-7.

[2] Gillard, R..; Wilkinson, G. W. (1939). "Trans -Dichlorotetra(pyridine)Rhodium(III) Salts". trans-Dichlorotetra(pyridine)rhodium(III) Salts. Inorganic Syntheses. 1o. pp. 64–67. doi:10.1002/9780470132418.ch11. ISBN 9780470132418.

[3] Acharya, K. R.; Tavale, S. S.; Guru Row, T. N. (1984). "Structure of mer-trichlorotris(pyridine)rhodium(III), [RhCl3(C5H5N)3]". Acta Crystallographica Section C Crystal Structure Communications. 40 (8): 1327–1328. doi:10.1107/S0108270184007848.