APPLICATION OF TIME-RESOLVED, STEP-SCAN FOURIER-TRANSFORM INFRARED-SPECTROSCOPY TO EXCITED-STATE ELECTRONIC-STRUCTURE IN POLYPYRIDYL COMPLEXES OF RHENIUM(I)

Authors
SCHOONOVER JR STROUSE GF DYER RB BATES WD CHEN PY MEYER TJ
Citation
Jr. Schoonover et al., APPLICATION OF TIME-RESOLVED, STEP-SCAN FOURIER-TRANSFORM INFRARED-SPECTROSCOPY TO EXCITED-STATE ELECTRONIC-STRUCTURE IN POLYPYRIDYL COMPLEXES OF RHENIUM(I), Inorganic chemistry, 35(2), 1996, pp. 273
Citations number
29
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Inorganic chemistry → ACNP
ISSN journal
00201669
Volume
35
Issue
2
Year of publication
1996
Database
ISI
SICI code
0020-1669(1996)35:2<273:AOTSFI>2.0.ZU;2-#
Abstract
Time-resolved infrared difference spectra have been acquired for a ser ies of Re(I) complexes by step-scan Fourier transform infrared spectro scopy, the first application of the step-scan technique to transient i norganic photochemistry. Shifts in v(CO) following laser flash excitat ion at 354.7 nm in CH3CN at room temperature show that the lowest-lyin g excited state in fac-[Re(phen)(CO)(3)(4-Mepy)](+) (1) is a metal-to- ligand charge transfer (MLCT) state, in fac-[Re(dppz)(CO)(3)(PPh(3))]( +) (2) a (3) pi pi state, and in fac-[Re(4,4'-(NH2)(2)bpy)(CO)(3)(4-E tpy)](+) (3) a mixture of ligand-based and MLCT states.