Synthesis of a Series of Diiron Complexes Based on a Tetraethynylethene Skeleton and Related C<sub>6</sub>-Enediyne Spacers, (dppe)Cp*Fe−C⋮CC(R)C(R)C⋮C−FeCp*(dppe): Tunable Molecular Wires
作者:Munetaka Akita、Yuya Tanaka、Chie Naitoh、Takehiro Ozawa、Nobuhiko Hayashi、Makoto Takeshita、Akiko Inagaki、Min-Chul Chung
DOI:10.1021/om060403t
日期:2006.10.1
complexes as molecular wires has been evaluated on the basis of the comproportionation constants (KC) obtained by electrochemical measurements and the Vab values obtained from the spectral parameters of the intervalence charge transfer bands of the isolated monocationic radical species appearing in the near-IR region. As a result, the C6-enediyne complexes turn out to be excellent molecular wires, with KC
一系列带有FeCp *(dppe)(Fe)端盖的3,4-二取代的(hex-3-ene-1,5-diyne-1,6-diyl)diron配合物Fe -C⋮CC(C)C (R)C⋮C- Fe(R = H,C⋮C-SiMe 3,C⋮C-H,C 6 H 5,p -C 6 H 4 CF 3),以及相关的(octa-3,5二烯-1,7-二炔-1,8-二基)diron络合物,铁-C⋮C-C(H)C(H)C(H)C(H)C⋮C-铁,已经被制备并评估了它们作为分子丝的性能。烯炔配合物是通过亚乙烯基中间体[ Fe C C(H)C(R)C(R)C(H)合成的衍生自相应的末端炔烃或Me 3 Si保护的前体(XC⋮CCC(C)C⋮C-X; X = H,SiMe 3)的C Fe ] 2+,其产品已经在光谱学和结晶学上表征。基于通过电化学测量获得的配分常数(K C)和从分离的单阳离子自由基的间隔电荷转移带的光谱参数获得的V