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Croatica Chemica Acta, Vol. 61 No. 2, 1988.

Original scientific paper

Infrared and Raman Spectroscopy of the Dirhodium Tetraacetate Complexes Rh2(O2CCH3)4, Rh2(18O2CCH3)4, Rh2(O2CCD3)4 and Rh2(O2CCH3)4(H2O)2

Robin J. H. Clark ; Christopher Ingold Laboratories University College London 20 Gordon Street London WC1H 0AJ, U. K.
Andrew J. Hempleman ; Christopher Ingold Laboratories University College London 20 Gordon Street London WC1H 0AJ, U. K.

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Abstract

The infrared (3500-50 cm-I), and Raman (3550-30 cm-I)
spectra of the dirhodium tetraacetate species Rh2(02CCHs)4,
Rh2(IB02CCHs)4, Rh2(02CCDS)4, and Rh2(02CCHs)4(H20)2 have been recorded and the key bands assigned, The oxygen-18 and deuteration studies, in particular, assisted with ma king the important band assignments for the anhydrous complex, for which 11 (RhRh)
occurs at 355-351 cm-I, and 11 (RhO) at 389-319 cm-I (Raman) and
398-341 cm-I (infrared). The band attributed to 11 (RhRh) is typically
intense, sharp, and relatively insensitive to either IBO_ or CDs-substitution. Thus 11 (RhRh) shifts only 4 cm-Ion either IBO
or CDs substitution whereas 11 (RhO) shifts 4-6 cm-I in the Raman
and 3-7 cm-I in the infrared spectra on IBO substitution but 12
cm-I in the Raman and 11-18 cm-I in the infrared spectra on CDs
substitution. Some preliminary isotopic work for the complex
Rh2(02CCHS)4(H20l2 is also presented.

Keywords

Hrčak ID:

175904

URI

https://hrcak.srce.hr/175904

Publication date:

30.9.1988.

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