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Title: Femtosecond Vibrational Dynamics of Self-Trapping in a Quasi-One-Dimensional System

Abstract

We have directly time resolved the lattice motions associated with the formation of the self-trapped exciton in the quasi-one-dimensional system [Pt(en){sub 2}] [Pt(en){sub 2}Br{sub 2} ]{center_dot}(PF{sub 6}){sub 4} (en=ethylene-diamine , C{sub 2}H {sub 8}N{sub 2} ), using femtosecond impulsive excitation techniques. A strongly damped, low-frequency wave packet modulation at {approx}110 cm{sup -1} accompanies the formation of the self-trapped exciton on a {approx}200 fs time scale following excitation of the intervalence charge-transfer transition. Coherent oscillations at the ground state vibrational frequency and its harmonics are also detected. (c) 2000 The American Physical Society.

Authors:
; ; ;
Publication Date:
OSTI Identifier:
20216441
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 84; Journal Issue: 19; Other Information: PBD: 8 May 2000; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ORGANOMETALLIC COMPOUNDS; LATTICE VIBRATIONS; TIME RESOLUTION; EXCITONS; ELECTRON TRANSFER; ABSORPTION SPECTRA; CHAINS; POLARIZATION; PLATINUM COMPLEXES; EXPERIMENTAL DATA

Citation Formats

Dexheimer, S. L., Van Pelt, A. D., Brozik, J. A., and Swanson, B. I. Femtosecond Vibrational Dynamics of Self-Trapping in a Quasi-One-Dimensional System. United States: N. p., 2000. Web. doi:10.1103/PhysRevLett.84.4425.
Dexheimer, S. L., Van Pelt, A. D., Brozik, J. A., & Swanson, B. I. Femtosecond Vibrational Dynamics of Self-Trapping in a Quasi-One-Dimensional System. United States. doi:10.1103/PhysRevLett.84.4425.
Dexheimer, S. L., Van Pelt, A. D., Brozik, J. A., and Swanson, B. I. Mon . "Femtosecond Vibrational Dynamics of Self-Trapping in a Quasi-One-Dimensional System". United States. doi:10.1103/PhysRevLett.84.4425.
@article{osti_20216441,
title = {Femtosecond Vibrational Dynamics of Self-Trapping in a Quasi-One-Dimensional System},
author = {Dexheimer, S. L. and Van Pelt, A. D. and Brozik, J. A. and Swanson, B. I.},
abstractNote = {We have directly time resolved the lattice motions associated with the formation of the self-trapped exciton in the quasi-one-dimensional system [Pt(en){sub 2}] [Pt(en){sub 2}Br{sub 2} ]{center_dot}(PF{sub 6}){sub 4} (en=ethylene-diamine , C{sub 2}H {sub 8}N{sub 2} ), using femtosecond impulsive excitation techniques. A strongly damped, low-frequency wave packet modulation at {approx}110 cm{sup -1} accompanies the formation of the self-trapped exciton on a {approx}200 fs time scale following excitation of the intervalence charge-transfer transition. Coherent oscillations at the ground state vibrational frequency and its harmonics are also detected. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevLett.84.4425},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 19,
volume = 84,
place = {United States},
year = {2000},
month = {5}
}