Time-resolved infrared

Diller R, Malt S, Walker G 0, Cowen B R, Pippenger R, Bogomoini R A and Hochstrasser R M 1995 Femtosecond time-resolved infrared laser study of the J-K transition of bacteriorhodopsin Chem. Rhys. Lett. 241 109-15... [Pg.1999]

Figure C3.1.9. Bloek diagram for time-resolved infrared speetroseopy apparatus. (From Dyer R B, Einarsdottir 6, Killough P M, Lopez-Garriga J J and Woodmff W H 1989 J. Am. Chem. Soc. Ill 7657-9).)...

Yuzawa T, Kate C, George M W and Hamaguchi H O 1994 Nanosecond time-resolved infrared spectroscopy with a dispersive scanning spectrometer Appl. Spectrosc. 48 684-90... [Pg.2969]

Time-Resolved Infrared (TRIR) Studies of Organic Reactive Intermediates... [Pg.183]

TIME-RESOLVED INFRARED (TRIR) STUDIES OF ORGANIC REACTIVE INTERMEDIATES... [Pg.184]

Coordinatively Unsaturated Metal Carbonyls in the Gas Phase via Time-Resolved Infrared Spectroscopy... [Pg.85]

Despite the considerable amount of information that has been garnered from more traditional methods of study it is clearly desirable to be able to generate, spectroscopically characterize and follow the reaction kinetics of coordinatively unsaturated species in real time. Since desired timescales for reaction will typically be in the microsecond to sub-microsecond range, a system with a rapid time response will be required. Transient absorption systems employing a visible or UV probe which meet this criterion have been developed and have provided valuable information for metal carbonyl systems [14,15,27]. However, since metal carbonyls are extremely photolabile and their UV-visible absorption spectra are not very structure sensitive, the preferred choice for a spectroscopic probe is time resolved infrared spectroscopy. Unfortunately, infrared detectors are enormously less sensitive and significantly slower... [Pg.86]

A detailed stopped-flow kinetics investigation (85) of this reaction (Por = TmTP and OEP) demonstrated that the mechanism occurs in two stages. The first was quite fast and was suppressed by the presence of excess CO and other coordinating ligands. Time resolved infrared... [Pg.231]

Recently, time-resolved infrared spectroscopic measurements revealed evidence for the first direct observation of an acyl nitroso compound in solution [22]. Pho-... [Pg.179]

A kinetic trace for a particular metal carbonyl intermediate is recorded at a specific wavelength obtained from the time-resolved infrared absorption spectrum. Suitable data analysis allows determination of the kinetics of the decay of the intermediate. [Pg.192]

The time-resolved infrared spectrum of [CpFe(CO)2]2 in cyclohexane solution 5 jlls after a UV flash shows peaks at 1938cm-1 and 1823cm-1, corresponding to (b) and (c), respectively. [Pg.193]

Fast time resolved infrared attached to flow and to uv-vis flash photolysis has been an important development for the study of rapid substitution, e.g. in Co2(CO)r in hexane " and... [Pg.158]

An important development for detection of transient organometallic species is fast time-resolved infrared. The transient is generated rapidly by uv-visible flash photolysis and monitored by ir with ps resolution. Spectra are obtained from a series of kinetic traces recorded at about 4 cm interval. [Pg.179]

Intermediate a-nitrosobenzaldehyde 36 was generated in solution by laser photolysis of 3,5-diphenyl-l,2,4-oxadiazole-4-oxide 37 and its time-resolved infrared (TRIR) spectroscopy has been recorded <2003JA1444>. The second-order rate constants for reaction with diethylamine and 1,3-cyclohexadiene were determined to be (1.3 0.5) x s ... [Pg.337]

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