scholarly journals Photoisomerization reaction of CH2BrI following A-band and B-band photoexcitation in the solution phase: Transient resonance Raman observation of the iso-CH2I–Br photoproduct

2000 ◽  
Vol 113 (8) ◽  
pp. 3194-3203 ◽  
Author(s):  
Xuming Zheng ◽  
David Lee Phillips
Keyword(s):  
Resonance Raman ◽  
Solution Phase ◽  
Transient Resonance

Transient Resonance Raman Spectroscopy of a Light-Driven Sodium-Ion-Pump Rhodopsin from Indibacter alkaliphilus

2017 ◽  
Vol 121 (17) ◽  
pp. 4431-4437 ◽  
Author(s):  
Kousuke Kajimoto ◽  
Takashi Kikukawa ◽  
Hiroki Nakashima ◽  
Haruki Yamaryo ◽  
Yuta Saito ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Sodium Ion ◽  
Ion Pump ◽  
Transient Resonance

scholarly journals Transient Resonance Raman Studies of Ru(II) Complexes in DNA and in Homogeneous Media

1999 ◽  
Vol 19 (1-4) ◽  
pp. 237-243
Author(s):  
Colin G. Coates ◽  
John J. McGarvey ◽  
Steven E. J. Bell ◽  
Luc Jacquet ◽  
John M. Kelly ◽  
...  
Keyword(s):  
Excited States ◽  
Resonance Raman ◽  
Homogeneous Solution ◽  
Vibrational Modes ◽  
Enhancement Pattern ◽  
Dna Complexes ◽  
Bridging Ligand ◽  
Transient Resonance ◽  
Homogeneous Media ◽  
Mlct State

Transient resonance Raman (TR2) spectroscopy has been used to investigate the metalligand charge-transfer (MLCT) excited states of Ru(II) polypyridyl complexes inDNAand in homogeneous solution. In DNA, complexes of the type [Ru(L)2(L′)]2+ were studied, where L=2, 2’-bipyridyl (bpy), 1,4, 5, 8-tetraazaphenanthrene (tap), and L′ dipyrido [3,2:a-2′ ,3′:c]-phenazine (dppz) or 1,4,5,8,9,12-hexaazatriphenylene (HAT). For [Ru(bpy)2(HAT)]2+, the enhancement pattern of vibrational modes in the TR2 spectra attributable to reduced HAT⋅− in the triplet MLCT state suggest perturbations to the intraligand transition of HAT⋅− in the presence of DNA. Transient RR spectra for [Ru(tap)2(dppz)]2+ are indicative of formation of the species RunII(tap⋅−)(tap)(dppz) by electron transfer from DNA to the triplet MLCT state of the complex.TR2 spectra for complexes of the type, [(Ru(bpy)2)n(L)]2+ , n=1, 2 where L=a triazole bridging ligand, illustrate the use of the technique as a probe of the response of MLCT states to the electronic environment.

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