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Platinum Metals Rev., 1969, 13, (2), 60

Complexes of Substituted Olefins with Salts of the Platinum Metals

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One of the small but intriguing parts of organometallic chemistry concerns the complexes formed between salts of the transition metals—more particularly those of the platinum metals—and substituted olefins. The discovery of this class of compound has not only advanced our knowledge of chemistry and of chemical bonding, but has stimulated our understanding of catalytic processes both in solution and at solid surfaces. A recent review by Richard Jones of the ICI Petrochemical and Polymer Laboratory (Chem. Rev., 1968, 68, 785) provides a thorough survey of this field. Among the type of substituents discussed are halogens, where perfluoro-olefins behave in some respects quite differently from simple olefins, and amine and cyanide groups, both of which may also chelate to the central metal atom. Complexes of this type provide an increased range of stabilities by comparison with their un-substituted analogues, and may well find industrial uses in the tailor-making of catalysts of specific activity.

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