COMPARATIVE STUDY OF THE STRUCTURES AND REACTIVITY OF THE PI-CYCLOPENTADIENYL-BONDED AND METAL-BONDED SUCCINIMIDYL ESTER COMPLEXES (METAL=MO, FE) - X-RAY MOLECULAR STRUCTURES OF [(ETA(5)-C5H4COONS)MO(CO)(3)ME] AND [(ETA(5)-C5H5)MO(CO)(3)(ETA(1)-CH2CO

摘要

The activated ester compounds [(eta(5)-C5H4COONS)Mo(CO)(3)Me] (5) and [(eta(5)-C5H4COONS)-Fe(CO)(2)Me] (6) were obtained by treatment of the novel organometallic carboxylic acid complexes [(eta(5)-C5H4COOH)Mo(CO)(3)Me] (2) and [(eta(5)-C5H4COOH)Fe(CO)(2)Me] (4) with N-hydroxysuccinimide in THF in the presence of DCC (dicyclohexylcarbodiimide) or with DSC (disuccinimidyl carbonate) in CH3CN in the presence of pyridine. These activated ester complexes were identified spectroscopically, and in addition, the X-ray molecular structure of 5 was determined. Compound 5 crystallizes in the triclinic space group P