A dramatic elongation of the lifetime of charge-separated state by complexation with yttrium triflate in ferrocene-anthraquinone linked dyad.
A dramatic elongation of the lifetime of charge-separated state by complexation with yttrium triflate in ferrocene-anthraquinone linked dyad.
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DOI：
10.1021/ja037025t
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发表时间：
2004-01
影响因子：
15
通讯作者：
K. Okamoto;Y. Araki;O. Ito;S. Fukuzumi
中科院分区：
文献类型：
--
作者：
K. Okamoto;Y. Araki;O. Ito;S. Fukuzumi
在298K的苯腈溶液中，二茂铁-蒽醌二联体(FC-AQ)与刚性酰胺间隔基的光诱导电子转移反应中，有Y(OTf)3存在时的电荷分离态寿命比无Y(OTf)3存在时的寿命延长了700万倍。在Y(OTf)3存在下CS寿命的显著延长是由于Y(OTf)3与FC+-AQ*-的AQ*-部分的强结合所致。
Seven million times elongation of the lifetime of charge-separated state is attained in the presence of yttrium triflate [Y(OTf)3] in the photoinduced electron-transfer reaction of a ferrocene-anthraquinone dyad (Fc-AQ) with a rigid amide spacer in benzonitrile at 298 K as compared with the lifetime in its absence. Such remarkable elongation of the CS lifetime in the presence of Y(OTf)3 results from the strong binding of Y(OTf)3 with the AQ*- moiety of Fc+-AQ*-.