Photodissociation dynamics of iodocyclohexane upon UV excitation by femtosecond pump–probe technique
- Resource Type
- Authors
- Bing Zhang; Chunlong Hu; Lian Wang; Ying Tang; Yanmei Wang; Jinyou Long
- Source
- Chemical Physics Letters. 658:134-139
- Subject
- 010304 chemical physics
Chemistry
Photodissociation
General Physics and Astronomy
02 engineering and technology
Pump probe
021001 nanoscience & nanotechnology
Mass spectrometry
01 natural sciences
Dissociation (chemistry)
Molecular vibration
Excited state
0103 physical sciences
Femtosecond
Physical and Theoretical Chemistry
Atomic physics
0210 nano-technology
Excitation
- Language
- ISSN
- 0009-2614
The photodissociation dynamics of iodocyclohexane in the A-band and C-state have been investigated by femtosecond time-resolved time-of-flight mass spectroscopy. Iodocyclohexane was pumped by 266 nm pulse to its A-band. The following dissociation dynamics is prompt and direct. The time it takes for the progression of the wave packet from the dissociative state to the dissociating asymptotic region is around 180 fs. The C-state was excited by 200 nm pump pulse and it has predissociative character with predissociation time of about 600 fs, which may have contributions from multiple vibrational modes.