Fluorescence spectra of Fe(II) spin crossover complexes with 2,6-bis(benzimidazole-2′-yl)pyridine

被引：55

作者：

Hasegawa, M

Renz, F

Hara, T

Kikuchi, Y

Fukada, Y

Okubo, J

Hoshi, T

Linert, W

机构：

[1] Aoyama Gakuin Univ, Coll Sci & Engn, Dept Chem, Setagaya Ku, Tokyo 1578572, Japan

[2] Ochanomizu Univ, Dept Chem, Bunkyo Ku, Tokyo 1128610, Japan

[3] Tokyo Denki Univ, Fac Engn, Dept Nat Sci Gen Educ, Chiba 2701382, Japan

[4] Vienna Univ Technol, Inst Organ Chem, A-1060 Vienna, Austria

来源：

CHEMICAL PHYSICS | 2002年 / 277卷 / 01期

基金：

奥地利科学基金会;

关键词：

spin crossover; Iron(II) complexes; fluorescence spectra; polarized electronic absorption spectral; MO calculation;

D O I：

10.1016/S0301-0104(01)00706-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 [物理化学]; 081704 [应用化学];

摘要：

Temperature dependent fluorescence, excitation and absorption spectra of two spin crossover Fe(II) complexes with 2,6-bis(benzimidazole-2'-yl)pyridine, Febz-H-2 (containing 2(ClO4-) as counter ions) and Febz-H (uncharged), have been observed. The origin of the unexpected observed fluorescence is discussed. Polarized absorption spectra in stretched polymer films are described and aid to the interpretation as well as extended PPP-MO calculations. The observed fluorescence spectra are not only the assignment of electronic transitions but also shown to be useful for the extraction of high-spin (HS) and low-spin (LS) contents in temperature dependent spin crossover systems. (C) 2002 Published by Elsevier Science B.V.

引用

页码：21 / 30

页数：10

共 42 条

[1]

NEW IRON(II) SPIN-CROSSOVER COMPLEXES WITH HETEROCYCLIC AMINE-DERIVED LIGANDS AND STEPS EXPERIMENTS ON PHOTOGENERATED METASTABLE HIGH-SPIN STATES [J].