Issue 52, 2018

Tracking intramolecular energy redistribution dynamics in aryl halides: the effect of halide mass

Abstract

Selective excitation of C–H, C–C, CX1 and CX2 stretching vibrational modes in an orderly manner, detection of intramolecular energy redistribution and vibrational coupling in the electronic ground state of aryl halides are performed by time- and frequency-resolved Coherent Anti-Stokes Raman Scattering (CARS) spectroscopy. Intramolecular energy flow from parent modes to daughter modes is observed in the experiment. According to the experimental results, it is found that the up-hill vibrational energy flow from lower frequency modes to higher frequency ones is counterintuitive and energy redistribution efficiencies are controlled by the mass of the halide. The selectivity and directionality of energy flow are also discussed in view of vibrational symmetry.

Graphical abstract: Tracking intramolecular energy redistribution dynamics in aryl halides: the effect of halide mass

Associated articles

Supplementary files

Article information

Article type
Paper
Submitted
11 Jun 2018
Accepted
16 Aug 2018
First published
23 Aug 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 29775-29780

Tracking intramolecular energy redistribution dynamics in aryl halides: the effect of halide mass

X. Liu, Y. Song, W. Zhang, G. Zhu, Z. Lv, W. Liu and Y. Yang, RSC Adv., 2018, 8, 29775 DOI: 10.1039/C8RA04979C

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