Acta Crystallographica Section C

Crystal Structure Communications

Volume 69, Part 12 (December 2013)

inorganic compounds

Acta Cryst. (2013). C69, 1462-1466    [ doi:10.1107/S010827011303076X ]

Arrangement of Rh3+ ions in fac-triamminetri­chlorido­rhodium from powder data and in fac-triammine­trinitratorhodium crystals twinned by merohedry

A. D. Vasiliev, M. S. Molokeev, I. A. Baidina, A. V. Belyaev and S. N. Vorob'eva

Abstract: The rhodium complexes [RhCl3(NH3)3], (I), and [Rh(NO3)3(NH3)3], (II), are built from octa­hedral RhX3(NH3)3 units; in (I) they are isolated units, while in (II) the units are stacked in columns with partially filled sites for the Rh atoms. The octa­hedra of monoclinic crystals of (I) are linked by N-H...Cl hydrogen bonds and the Rh3+ ions are located on the mirror planes. In the trigonal crystals of (II), the discontinuous `columns' along the threefold axis are linked by N-H...O hydrogen bonds. The structure of (I) has been solved using laboratory powder diffraction data, the structure of (II) has been solved by single-crystal methods using data from a merohedrally twinned sample. Both compounds possess low solubility in water.

CCDC references: 971136 and 971137

Formula: [RhCl3(NH3)3] and [Rh(NO3)3(NH3)3]

Keywords: crystal structure; powder diffraction; merohedral twinning; fac-triamminetri­chlorido­rhodium; low solubility; fac-triamminetrinitratorhodium.

hkldisplay filedownload file

Structure factor file (CIF format) (35.0 kbytes)
[ doi:10.1107/S010827011303076X/lg3133Isup3.hkl ]
Contains datablock I

hkldisplay filedownload file

Structure factor file (CIF format) (43.7 kbytes)
[ doi:10.1107/S010827011303076X/lg3133IIsup4.hkl ]
Contains datablock II


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