Electron spin resonance spectrum of tetraphenylarsonium tetra-chloro-oxochromate(V)
- 1 January 1976
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 21,p. 2258-2261
- https://doi.org/10.1039/dt9760002258
Abstract
The single-crystal e.s.r. parameters for [AsPh4][CrCl4O] giving g∥ 2.006 ± 0.002 and g⊥ 1.979 ± 0.002 are reported (where g∥ coincides with the Cr–O direction). Solution measurements in CH2Cl2 give g 1.988 ± 0.001 and ā 18.1 × 10–4 cm–1, and the addition of excess of [NEt4] Cl to these solutions results in an additional e.s.r. signal at g 1.970 ± 0.001 which is attributed to the [CrCl5O]2– species. The e.s.r. parameters have been interpreted using an ab initio molecular-orbital approach as well as the more conventional molecular-orbital approach. The results of these two approaches are critically compared.Keywords
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