Femtosecond Transient Absorption and Nanosecond Time-Resolved Resonance Raman Study of the Solvent-Dependent Photo-Deprotection Reaction of Benzoin Diethyl Phosphate

2007 ◽  
Vol 13 (8) ◽  
pp. 2290-2305 ◽  
Author(s):  
Chensheng Ma ◽  
Yong Du ◽  
Wai Ming Kwok ◽  
David Lee Phillips
Keyword(s):  
Transient Absorption ◽  
Resonance Raman ◽  
Time Resolved ◽  
Femtosecond Transient Absorption ◽  
Raman Study ◽  
Diethyl Phosphate

Time-Resolved Resonance Raman Study of the Triplet States ofp-Hydroxyacetophenone and thep-Hydroxyphenacyl Diethyl Phosphate Phototrigger Compound

2004 ◽  
Vol 69 (20) ◽  
pp. 6641-6657 ◽  
Author(s):  
Chensheng Ma ◽  
Peng Zuo ◽  
Wai Ming Kwok ◽  
Wing Sum Chan ◽  
Jovi Tze Wai Kan ◽  
...  
Keyword(s):  
Resonance Raman ◽  
Triplet States ◽  
Time Resolved ◽  
Raman Study ◽  
Diethyl Phosphate

Ultrafast Heme Dynamics in Ferrous versus Ferric CytochromecStudied by Time-Resolved Resonance Raman and Transient Absorption Spectroscopy

2006 ◽  
Vol 110 (25) ◽  
pp. 12766-12781 ◽  
Author(s):  
Michel Negrerie ◽  
Simona Cianetti ◽  
Marten H. Vos ◽  
Jean-Louis Martin ◽  
Sergei G. Kruglik
Keyword(s):  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Resonance Raman ◽  
Transient Absorption Spectroscopy ◽  
Time Resolved

scholarly journals Time-Resolved Spectroscopic Study of N,N–Di(4–bromo)nitrenium Ions in Acidic Aqueous Solution

2019 ◽  
Vol 20 (21) ◽  
pp. 5512 ◽  
Author(s):  
Lili Du ◽  
Zhiping Yan ◽  
Xueqin Bai ◽  
Runhui Liang ◽  
David Lee Phillips
Keyword(s):  
Aqueous Solution ◽  
Transient Absorption ◽  
Function Theory ◽  
Spectroscopic Properties ◽  
Time Resolved ◽  
Nitrenium Ions ◽  
Acidic Aqueous Solution ◽  
Nitrenium Ion ◽  
Femtosecond Transient Absorption ◽  
Aqueous Conditions

Nitrenium ions are common reactive intermediates with high activities towards some biological nucleophiles. In this paper, we employed femtosecond transient absorption (fs-TA) and nanosecond transient absorption (ns-TA) as well as nanosecond time-resolved resonance Raman (ns-TR3) spectroscopy and density function theory (DFT) calculations to study the spectroscopic properties of the N(4,4′–dibromodiphenylamino)–2,4,6–trimethylpyridinium BF4− salt (1) in an acidic aqueous solution. Efficient cleavage of the N–N bond (4 ps) to form the N,N–di(4–bromophenyl)nitrenium ion (DN) was also observed in the acidic aqueous solution. As a result, the dication intermediate 4 appears more likely to be produced after abstracting a proton for the nitrenium ion DN in the acid solution first, followed by an electron abstraction to form the radical cation intermediate 3. These new and more extensive time-resolved spectroscopic data will be useful to help to develop an improved understanding of the identity, nature, and properties of nitrenium ions involved in reactions under acidic aqueous conditions.

A time-resolved resonance Raman study of the T1 excited state of zinc(II) octaalkylporphyrins

1993 ◽  
Vol 97 (41) ◽  
pp. 10521-10523 ◽  
Author(s):  
Ranjit Kumble ◽  
Songzhou Hu ◽  
Glen R. Loppnow ◽  
S. E. Vitols ◽  
Thomas G. Spiro
Keyword(s):  
Excited State ◽  
Resonance Raman ◽  
Time Resolved ◽  
Raman Study

Time-Resolved Resonance Raman Study of Triplet Arylnitrenes and Their Dimerization Reaction

2003 ◽  
Vol 107 (19) ◽  
pp. 3858-3865 ◽  
Author(s):  
Shing Yau Ong ◽  
Pik Ying Chan ◽  
Peizhi Zhu ◽  
King Hung Leung ◽  
David Lee Phillips
Keyword(s):  
Resonance Raman ◽  
Time Resolved ◽  
Raman Study ◽  
Dimerization Reaction

Intermolecular hydrogen bonding in chlorine dioxide photochemistry: A time-resolved resonance Raman study

2001 ◽  
Vol 263 (2-3) ◽  
pp. 389-400 ◽  
Author(s):  
Matthew P Philpott ◽  
Sophia C Hayes ◽  
Carsten L Thomsen ◽  
Philip J Reid
Keyword(s):  
Hydrogen Bonding ◽  
Chlorine Dioxide ◽  
Resonance Raman ◽  
Intermolecular Hydrogen Bonding ◽  
Time Resolved ◽  
Raman Study
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