Summary
Substitution reactions ofcis-Mo(CO)4(py)2, Mo(CO)5-(4-Mepy) and Mo(CO)5(py) with biacetylbis(phenylimine), bipyridine and 1,10-phenanthroline in toluene and 1,2-dichloroethane were studied as a function of temperature and pressure. The volumes of activation are +4 cm3 mol−1 and almost zero for the tetra- and penta-carbonyl systems, respectively, and independent of entering ligand and solvent. Furthermore, these values closely parallel the trend in ΔS#. The results are discussed in terms of earlier suggested mechanisms and relevant data recently reported in the literature.
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Macholdt, H.T., van Eldik, R. High pressure effects on ligand substitution reactions of molybdenum(0) carbonyl complexes. Transition Met Chem 10, 323–325 (1985). https://doi.org/10.1007/BF01036390
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DOI: https://doi.org/10.1007/BF01036390