Ring-strain effects on the oxidation potential of enediynes and enediyne complexes |
| |
Authors: | Baldridge Kim K Donovan-Merkert Bernadette T O'Connor Joseph M Lee Linda I Closson Adam Fandrick Daniel Tran Tuan Bunker Kevin D Fouzi Mouffouk Gantzel Peter |
| |
Affiliation: | Department of Chemistry and Biochemistry, University of California at San Diego, San Diego Supercomputer Center, La Jolla, California, USA. |
| |
Abstract: | The metal-enediyne complexes [(eta 5-C5H5)Fe[eta 5-1,2-C5H3C identical to C(CH2)nC identical to]] (4, n = 4; 5, n = 5) and [(eta 5-C5H5)-Fe[eta 5-1,2-C5H3(C identical to C Me)2]] (6) were prepared from 1,2-diethynylferrocene (3). Complexes 4 and 5 were characterized in the solid state by X-ray crystallographic analysis. The structures of 4 and 6 were determined by computation using ab initio methods. A correlation was observed between ring-strain and increased ease of electrochemical oxidation along the series 6 (+0.164 V) to 5(+0.152 V) to 4 (+0.123 V). A similar trend in ionization potentials was identified in both the gas phase and in solution by computational methods. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|