Abstract

Cyclopentadienylmanganese tricarbonyl complexes with allyloxymethyl- and propargyloxymethyl substituents have been synthesized. Under UV irradiation, they give new chelate cyclopentadienylmanganese dicarbonyl complexes with coordinated vinyl and ethinyl groups. In the case of cyclopentadienylmanganese-cricarbonyl complexes having two such substituents, only mono-bridged chelate dicarbonyl compounds have been obtained. α-Oxo-ω-cyanoalkyl derivatives of cyclopentadienylmanganese tricarbonyl give under UV irradiation new chelate complexes with σ-coordination between the metal and the nitrogen atom of cyano groups. An attempt to obtain chelate complexes by the same method from ω-cyanoalkyl derivatives of cyclopentadienylmanganese tricarbonyl failed.

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