A novel C
C bond cleavage in hexacarbonyl(hexapentaene)diiron: X-ray crystal structure of a bis(µ3,η2-allenylidene)–iron complex
Abstract
Aryl-substituted hexacarbonyl(hexapentaene)diiron complexes undergo facile intramolecular CC bond cleavage on treatment with [Fe3(CO)12] to yield the corresponding bis(µ3,η2-allenylidene)–iron complexes; the X-ray crystal structures of phenyl-substituted bis(µ3,η2-allenylidene)–iron and related allenylidene complexes are determined.