Crown ether encapsulation effects on the optical properties of delocalized and partially localized bridged ruthenium dimers

被引：10

作者：

Ferretti, A ^{[1
]}

Lami, A ^{[1
]}

Villani, G ^{[1
]}

机构：

[1] CNR, Ist Chim Quantist & Energet Mol, I-56126 Pisa, Italy

来源：

INORGANIC CHEMISTRY | 1998年 / 37卷 / 17期

关键词：

D O I：

10.1021/ic9713691

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The effects of crown ether encapsulation on the position of the near-IR-vis bands of [(NH3)(5)Ru-pyz-Ru(NH3)(5)](m+) and [(NH3)(5)Ru-(4,4'-bpy)-Ru(NH3)(5)](m+) (m = 4, 5) have been investigated within a purely electronic picture. The model accounts for the observed behavior and furnishes a theoretical explanation. The near-IR band, observed experimentally around 1 eV, is found to be a metal-to-ligand charge-transfer transition, in contrast to the common idea that ascribes it to an intervalence transition (Ferretti, A.; Lami, A.; Villani, G. Inorg. Chem. 1998, 37, 2799). The results obtained are a further confirmation that the model proposed contains all the essential ingredients for a basic minimal description of electron transfer in donor-bridge-acceptor systems.

引用

页码：4460 / 4465

页数：6

共 32 条

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