Ferrocenylene- and Carbosiloxane-Bridged Bis(sila[1]ferrocenophanes) E[SiMe2-X-SiMeFC]2 {E = (η5-C5H4)Fe(η5-C5H4) or O; X = (CH2)n (n = 2, 3, 6); CH═CH; FC = (η5-C5H4)2Fe}
摘要:
New FC[SiMe2(CH2)(n)SiMeFC](2) [FC = 1,1'-ferrocenylene; FC = 1,1'-ferrocenophane, (eta(5)-C5H4)(2)Fe); n = 2 (7), 3 (8), 6 (9)] and O[SiMe2-X-SiMeFC](2) [X = (CH2)(2) (11), CH=CH (13)] have been synthesized and characterized. The synthesis involved the reactions of FCLi2 center dot tmeda with FC[SiMe2(CH2)(n)SiMeCl2](2) [n = 2 (4), 3 (5), 6 (6)] and O[SiMe2-X-SiMeCl2](2) [X = (CH2)(2) (10), CH=CH (12)] at -78 degrees C. Compounds 4-13 were characterized by elemental analysis, NMR spectroscopy, and for 11, single-crystal X-ray crystallography. The cyclopentadienyl rings in the structure of 11 are tilted with a dihedral angle of 19.8 degrees. The observed red-shift of the lowest energy transition associated with the ferrocenophanyl groups in UV/vis spectra of 7-9, 11, and 13 also confirms the ring strain. Cyclic voltammetric studies exhibited either a broad (7-9) or sharp (11, 13) wave for the reversible redox process. The broadness of the band for the FC-bridged complexes is a composite of the two types of (eta(5)-C5H4)Fe(eta(5)-C5H4) unit, but no significant inter-Fc interaction could be discerned. All the new bis-ferrocenylene materials are readily ring-opened to form polymeric materials.
DOI:
10.1021/om800537b
作为产物:
描述:
1,1'-dilithioferrocene N,N,N'N'-tetramethylethylenediamine 、 5-己烯基二甲基氯硅烷 以
not given 为溶剂,
以90%的产率得到Fe(η5-C5H4SiMe2(CH2)4CHCH2)2
参考文献:
名称:
Ferrocenylene- and Carbosiloxane-Bridged Bis(sila[1]ferrocenophanes) E[SiMe2-X-SiMeFC]2 {E = (η5-C5H4)Fe(η5-C5H4) or O; X = (CH2)n (n = 2, 3, 6); CH═CH; FC = (η5-C5H4)2Fe}
摘要:
New FC[SiMe2(CH2)(n)SiMeFC](2) [FC = 1,1'-ferrocenylene; FC = 1,1'-ferrocenophane, (eta(5)-C5H4)(2)Fe); n = 2 (7), 3 (8), 6 (9)] and O[SiMe2-X-SiMeFC](2) [X = (CH2)(2) (11), CH=CH (13)] have been synthesized and characterized. The synthesis involved the reactions of FCLi2 center dot tmeda with FC[SiMe2(CH2)(n)SiMeCl2](2) [n = 2 (4), 3 (5), 6 (6)] and O[SiMe2-X-SiMeCl2](2) [X = (CH2)(2) (10), CH=CH (12)] at -78 degrees C. Compounds 4-13 were characterized by elemental analysis, NMR spectroscopy, and for 11, single-crystal X-ray crystallography. The cyclopentadienyl rings in the structure of 11 are tilted with a dihedral angle of 19.8 degrees. The observed red-shift of the lowest energy transition associated with the ferrocenophanyl groups in UV/vis spectra of 7-9, 11, and 13 also confirms the ring strain. Cyclic voltammetric studies exhibited either a broad (7-9) or sharp (11, 13) wave for the reversible redox process. The broadness of the band for the FC-bridged complexes is a composite of the two types of (eta(5)-C5H4)Fe(eta(5)-C5H4) unit, but no significant inter-Fc interaction could be discerned. All the new bis-ferrocenylene materials are readily ring-opened to form polymeric materials.