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首页> 外文期刊>Organometallics >Iterative synthesis of oligoynes capped by a Ru-2(ap)(4)-terminus and their electrochemical and optoelectronic properties
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Iterative synthesis of oligoynes capped by a Ru-2(ap)(4)-terminus and their electrochemical and optoelectronic properties

机译:Ru-2(ap)(4)-端基封端的低聚炔的迭代合成及其电化学和光电性能

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摘要

Cross-coupling reactions between terminal ethynes (HC-CY) and Ru-2(ap)(4)(C2(k-1)H) under Hay conditions, where ap is 2-anilinopyridinate and k = 2-5, resulted in compounds Ru2-(ap)(4)(C2kY) (Y = (SiPr3)-Pr-i and Ph) along with the homocoupling products YC4Y and [Ru-2(ap)(4)](2)-(mu-C4(k-1)). Compounds Ru-2(ap)(4)(C2kY) display two reversible RU2-based one-electron couples: an oxidation and a reduction. The HOMO-LUMO gaps (E-g) estimated from electrode potentials correlate linearly with the number of acetylenic bonds (k) within each series. Both nonlinear absorption and degenerate four-wave mixing measurements were carried out at both 532 and 800 nm with nano- and femtosecond laser pulses.
机译:末端乙炔(HC-CY)与Ru-2(ap)(4)(C2(k-1)H)在Hay条件下的交叉偶联反应,其中ap为2-苯胺基吡啶并k = 2-5化合物Ru2-(ap)(4)(C2kY)(Y =(SiPr3)-Pr-i和Ph)以及均耦合产物YC4Y和[Ru-2(ap)(4)](2)-(mu- C4(k-1))。化合物Ru-2(ap)(4)(C2kY)显示出两个基于RU2的可逆单电子对:氧化和还原。根据电极电位估算的HOMO-LUMO间隙(E-g)与每个系列中的炔键(k)数量线性相关。使用纳秒和飞秒激光脉冲在532和800 nm处进行了非线性吸收和简并四波混频测量。

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