(Bicyclo[3.2.0]hepta‐1,3‐dienyl)cobalt(I) Complexes

Three isomeric bicyclo[3.2.0]heptadienes 1 – 3 are compared by semiempirical calculations. Experimental attempts directed to the synthesis of derivatives of 1 are described. The synthesis, properties and some reactions of (η51-bicyclo[3.2.0]hepta-1,3-dienyl)(η41-cycloocta-1,5-diene)cobalt(I) (22), including an X-ray crystal structure determination of the reaction product with diphenylethyne, the tetraphenylcyclobutadiene complex 30, are presented.

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