Heats of the reactions of tricarbonyl(naphthalene)chromium, tricarbonyl(cycloheptatriene)chromium, tricarbonyl(cycloheptatriene)tungsten, and tricarbonyltris(ethylcyanide)tungsten with pyridine, phosphines, phosphites, and other ligands. Comparative thermochemical study of L3M(CO)3 complexes (M = Cr, Mo, W)
| Autor: | Shakti L. Mukerjee, Gabor Kiss, Steven P. Nolan, Russell F. Lang, Telvin D. Ju, Carl D. Hoff |
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| Rok vydání: | 1992 |
| Předmět: |
Substitution reaction
Ligand Inorganic chemistry Cycloheptatriene chemistry.chemical_element Medicinal chemistry Reductive elimination Inorganic Chemistry Metal chemistry.chemical_compound Chromium chemistry visual_art Pyridine visual_art.visual_art_medium Physical and Theoretical Chemistry Naphthalene |
| Zdroj: | Inorganic Chemistry. 31:4885-4889 |
| ISSN: | 1520-510X 0020-1669 |
| DOI: | 10.1021/ic00049a030 |
| Popis: | Enthalpies of ligand substitution based on reaction of (cycloheptatriene)Cr(CO)3, (naphthalene)Cr(CO)3, (cycloheptatriene)W(CO)3, (EtCN)3W(CO)3, and (arene)W(CO)3 complexes with a series of ligands have been measured by solution calorimetry. These data generate an order of thermochemical stability for the complexes L(n)M(CO)3 (M = Cr, W). These data are combined with earlier data reported for analogous organomolybdenum complexes and allow comparison of relative enthalpies of ligand substitution as a function of the metal. Referenced to the (eta6-C6H6)M(CO)3 complex, ligand substitution reactions producing L(n)M(CO)3 become increasingly exothermic in going from Cr to Mo to W, in keeping with the expected increase in bond strength in going from a first- to a second- to a third-row metal. |
| Databáze: | OpenAIRE |
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