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Dichlorotetrakis(pyridine)rhodium(III) chloride

From Wikipedia, the free encyclopedia

Dichlorotetrakis(pyridine)­rhodium(III) chloride
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 237-929-8
  • InChI=1S/4C5H5N.3ClH.Rh/c4*1-2-4-6-5-3-1;;;;/h4*1-5H;3*1H;/q;;;;;;;+3/p-3
    Key: SIIBZAPGWNBRSK-UHFFFAOYSA-K
  • C1=CC=NC=C1.C1=CC=NC=C1.C1=CC=NC=C1.C1=CC=NC=C1.[Cl-].[Cl-].[Cl-].[Rh+3]
Properties
C20H20Cl3N4Rh
Molar mass 525.66 g·mol−1
Appearance yellow solid
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H315, H319, H335
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Dichlorotetrakis(pyridine)rhodium(III) chloride is the chloride salt of the coordination complex with the formula [RhCl2(pyridine)4]+. 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 [RhCl2(pyridine)4]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 [RhCl2(pyridine)4]Cl.[3]

References

  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, ReO4, ClO4)". Journal of Structural Chemistry. 50 (2): 335–342. doi:10.1007/s10947-009-0046-7.
  2. ^ Gillard, R. D.; Wilkinson, G. W. (1967). "trans-Dichlorotetra(pyridine)rhodium(III) Salts". Inorganic Syntheses. 10: 64–67. doi:10.1002/9780470132418.ch11.
  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.
This page was last edited on 23 January 2023, at 12:02
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