Abstract
Thorium-ligand bond disruption enthalpies (D(Th-R)) have been determined in the series of complexes Cp3ThR, where Cp = η5-C5H5 and R = an alkyl group. Thermochemical data were obtained by anaerobic batch-titration solution calorimetry from enthalpies of solution of the Cp3ThR complexes in toluene followed by enthalpies of alcoholysis with CF3CH2OH. D(Th-R)gas values obtained (2σ) were as follows: CH2Si(CH3)3, 86.1 (3.6) kcal/mol; CH3, 82.7 (1.1) kcal/mol; CH2C(CH3)3, 77.9 (3.0) kcal/mol; CH2C6H5, 77.9 (2.2) kcal/mol; CH(CH3)2, 77.3 (2.7) kcal/mol. These disruption enthalpies parallel but are significantly larger than those for the identical R functionalities in the Cp′ThR2 series, Cp′ = η5-(CH3)5C5.
| Original language | English |
|---|---|
| Pages (from-to) | 352-355 |
| Number of pages | 4 |
| Journal | Organometallics |
| Volume | 4 |
| Issue number | 2 |
| Publication status | Published - 1985 |
ASJC Scopus subject areas
- Inorganic Chemistry
- Organic Chemistry
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Sonnenberger, D. C., Morss, L. R., & Marks, T. J. (1985). Organo f-element thermochemistry. Thorium-Ligand bond disruption enthalpies in tris(cyclopentadienyl)thorium hydrocarbyls. Organometallics, 4(2), 352-355.