INTRAMOLECULAR ENERGY-TRANSFER IN COVALENTLY LINKED POLYPYRIDINE RHENIUM(I) RUTHENIUM(II) COMPLEXES
INTRAMOLECULAR ENERGY-TRANSFER IN COVALENTLY LINKED POLYPYRIDINE RHENIUM(I) RUTHENIUM(II) COMPLEXES
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DOI：
10.1016/0010-8545(91)84027-3
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发表时间：
1991-12-06
影响因子：
20.6
通讯作者：
KAMACHI, M
中科院分区：
文献类型：
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作者：
FURUE, M;NAIKI, M;KAMACHI, M
合成了一系列新型共价连接的聚吡啶 Re(I)/Ru(II) 双核配合物 [LRe(I)(CO)3MebpyCH2CH(OH)CH2MebpyRu(II)(bpy)2]（L = Cl、4-甲基吡啶、N-甲基咪唑或乙腈）1。 1（激发波长：360 nm）的发射光谱显示Re(I)-->pi*(bpy) MLCT发射几乎完全猝灭，而Ru(II)-->pi*(bpy) MLCT发射增强。 分子内能量转移的速率常数(k(en))范围为1.7 x 10(8) 至1.2 x 10(9) s-1。 从能隙定律的角度讨论了k(en)与能隙的关系。
A novel series of covalently-linked polypyridine Re(I)/Ru(II) binuclear complexes [LRe(I)(CO)3MebpyCH2CH(OH)CH2MebpyRu(II)(bpy)2] (L = Cl, 4-methylpyridine, N-methylimidazole, or acetonitrile) 1, has been synthesized. The emission spectra of 1 (excitation wavelength:360 nm) showed a nearly complete quenching of Re(I)-->pi*(bpy) MLCT emission and the enhancement of Ru(II)-->pi*(bpy) MLCT emission. The rate constants (k(en)) of the intramolecular energy transfer ranged from 1.7 x 10(8) to 1.2 x 10(9) s-1. The relation between k(en) and the energy gap was discussed in terms of the energy gap law.