Coherent nuclear dynamics in ultrafast electron transfer in a porphyrin-ferrocene dyad
Coherent nuclear dynamics in ultrafast electron transfer in a porphyrin-ferrocene dyad
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DOI：
10.1016/j.cplett.2006.07.082
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发表时间：
2006-09-29
影响因子：
2.8
通讯作者：
Nakashima, Satoru
中科院分区：
文献类型：
--
作者：
Kubo, Minoru;Mori, Yukie;Nakashima, Satoru
利用飞秒上转换和泵浦-探测技术研究了二茂铁直接连接在卟啉中间位的卟啉-二茂铁二元体系中的超快电子转移。在苯和四氢呋喃中电子转移的时间常数都接近110 fs。130-，200-和250-cm（-1）模式的振动相干性，这被分配到二茂铁的平移和旋转，被观察到，并被发现是相移相对于330-cm（-1）模式的振动相干性。讨论了振动模的这种行为与电子转移的关系。(c)2006 Elsevier B. V.保留所有权利。
Ultrafast electron transfer in a porphyrin-ferrocene dyad in which the ferrocene moiety is directly linked at the meso-position of the porphyrin was studied using femtosecond up-conversion and pump-probe techniques. The time constant of electron transfer was similar to 110 fs both in benzene and tetrahydrofuran. Vibrational coherence of the 130-, 200-, and 250-cm(-1) modes, which were assigned to the translation and rotation of ferrocene, was observed, and was found to be phase shifted with respect to the vibrational coherence of the 330-cm(-1) mode. The relation between this behavior of vibrational modes and electron transfer is discussed. (c) 2006 Elsevier B.V. All rights reserved.