flash photolysis
E557615
Flash photolysis is a time-resolved spectroscopic technique that uses brief, intense light pulses to generate and observe short-lived reactive species and fast chemical reactions.
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
photochemical method
ⓘ
pump–probe technique ⓘ time-resolved spectroscopic technique ⓘ |
| appliesTo |
biochemical processes
ⓘ
inorganic reaction mechanisms ⓘ materials science ⓘ organic reaction mechanisms ⓘ photobiology ⓘ photochemical reactions ⓘ photosynthetic systems ⓘ |
| component |
detector
ⓘ
monochromator ⓘ oscilloscope or digitizer ⓘ probe beam ⓘ pump pulse ⓘ sample cell ⓘ |
| dataType |
absorbance vs time
ⓘ
spectrum vs time ⓘ |
| developedBy | Norrish and Porter NERFINISHED ⓘ |
| enables |
detection of unstable intermediates
ⓘ
determination of reaction rate constants ⓘ mapping of reaction mechanisms ⓘ study of ultrafast chemical kinetics ⓘ |
| field |
chemical kinetics
ⓘ
physical chemistry ⓘ spectroscopy ⓘ |
| measures |
kinetics of fast reactions
ⓘ
lifetimes of excited states ⓘ lifetimes of transient species ⓘ time-resolved spectra ⓘ transient absorption ⓘ |
| notableAward | Nobel Prize in Chemistry 1967 (for its development) NERFINISHED ⓘ |
| observes |
charge-transfer states
ⓘ
excited electronic states ⓘ radicals ⓘ short-lived reactive species ⓘ transient intermediates ⓘ triplet states ⓘ |
| relatedTo |
laser photolysis
ⓘ
pump–probe spectroscopy ⓘ transient absorption spectroscopy ⓘ |
| requires |
fast detection electronics
ⓘ
synchronization of pump and probe ⓘ |
| typicalTimescale |
microseconds
ⓘ
nanoseconds ⓘ picoseconds ⓘ |
| uses |
brief intense light pulses
ⓘ
lasers ⓘ pulsed light sources ⓘ xenon flash lamps ⓘ |
Referenced by (1)
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