Vibrational spectroscopic study of light-induced metastable states of ethylenediaminenitrosylruthenium(II) complexes

被引：66

作者：

Ookubo, K

Morioka, Y

Tomizawa, H

Miki, E

机构：

[1] SAITAMA UNIV,FAC SCI,DEPT CHEM,URAWA,SAITAMA 338,JAPAN

[2] RIKKYO UNIV,COLL SCI,DEPT CHEM,TOSHIMA KU,TOKYO 171,JAPAN

来源：

JOURNAL OF MOLECULAR STRUCTURE | 1996年 / 379卷

关键词：

metastable state; nitrosyiruthenium; vibrational spectroscopy; coordination compound;

D O I：

10.1016/0022-2860(95)09197-1

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 ; 081704 ;

摘要：

Light-induced metastable states were found in trans- and cis-[RuCl(en)(2)NO]Cl-2, trans- and cis-[RuBr(en)(2)NO]Br-2, trans-[Ru(H2O)(en)(2)NO]Cl-3, and a mixture of fac- and mer-[RuCl3(en)NO]. These states are formed when the polycrystalline samples are irradiated with blue or green laser lines from an Ar ion laser at 77 K. They decay upon irradiation with red light or a rise in temperature. The N-O stretching frequency that is observed in the range from 1865 to 1904 cm(-1) in the ground (normal) state of each compound shifts to the lower frequency side by approx. 100-140 cm(-1) in the metastable states. These characteristics are similar to those of the metastable states of Na-2[Fe(CN)(5)NO]. 2H(2)O, K-2[RuHCl5NO] and K-2[Ru(NO2)(4)(OH(NO)]. Decay temperatures of the ethylenediaminenitrosyl-ruthenium(II) complexes are notably higher (approx. 230-270 K) than those of the substances examined in earlier studies (approx. 180-190 K).

引用

页码：241 / 247

页数：7

共 18 条

[1] VIBRATIONAL-SPECTRA OF NITROSYL AND CARBONYL-COMPLEXES .1. NITROSYLPENTAHALOGENO COMPLEXES OF OSMIUM, RUTHENIUM AND IRIDIUM [J].