Abstract
The infrared spectra of the copper(I) compounds (C5H5)CuPR3, R = C2H5, C4H9, and the mercury compounds (C5H5)2Hg and C5H5HgCl have been reinvestigated. Comparisons are made with the spectra of compounds which serve as models for pentahapto- and monohaptocyclopentadienylmetal systems. The following conclusions emerge unequivocally: (1) contrary to the belief which has prevailed since 1956, the copper compounds contain pentahapto (i.e., "sandwich-bonded" rings, and (2) the mercury compounds contain monohapto (i.e., σ-bonded) rings. The significance of these results is discussed in relation to the physical, chemical, and dynamical properties of the molecules.
| Original language | English |
|---|---|
| Pages (from-to) | 7281-7285 |
| Number of pages | 5 |
| Journal | Journal of the American Chemical Society |
| Volume | 91 |
| Issue number | 26 |
| Publication status | Published - 1969 |
ASJC Scopus subject areas
- Chemistry(all)
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Cotton, F. A., & Marks, T. J. (1969). An infrared study of the structures of cyclopentadienyl compounds of copper(I) and mercury(II). Journal of the American Chemical Society, 91(26), 7281-7285.