| Coherent Motion Reveals Non-Ergodic Nature of Internal Conversion between Excited States. | |
| | |
MedLine Citation:
|
PMID: 22279007 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
We found that specific nuclear motion along low-frequency modes is effective in coupling electronic states and that this motion prevail in some small molecules. Thus, in direct contradiction to what is expected based on the standard models, the internal conversion process can proceed faster for smaller molecules. Specifically, we focus on the S(2) →S(1) internal conversion in cyclobutanone, cyclopentanone, and cyclohexanone. By means of time-resolved mass spectrometry and photoelectron spectroscopy the relative rate of this transition is determined to be 13:2:1. Remarkably, we observe coherent nuclear motion on the S(2) surface in a ring-puckering mode and motion along this mode in combination with symmetry considerations allow for a consistent explanation of the observed relative time-scales not afforded by only considering the density of vibrational states or other aspects of the standard models. |
| | |
Authors:
|
Thomas S Kuhlman; Theis I Sølling; Klaus B Møller |
Related Documents
:
|
22511997 - Indiscriminable sounds determine the direction of visual motion. 22304077 - O'connell's process as a vicious brownian motion. 22416597 - Narcissistic people cannot be moved easily by visual stimulation. 14586927 - Effect of light finger touch on postural sway after lower-limb muscular fatigue. 17884077 - Spurious atrial tachycardia in a pilot. prediction of the artifactual appearances in al... 21660347 - Mechanoluminescent light source for a fluorescent probe molecule. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2012-1-25 |
Journal Detail:
|
Title: Chemphyschem : a European journal of chemical physics and physical chemistry Volume: - ISSN: 1439-7641 ISO Abbreviation: - Publication Date: 2012 Jan |
Date Detail:
|
Created Date: 2012-1-26 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 100954211 Medline TA: Chemphyschem Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
Affiliation:
|
Department of Chemistry, Technical University of Denmark, Kemitorvet 207, DK-2800 Kgs. Lyngby (Denmark). |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Programmable Bipolar and Unipolar Nonvolatile Memory Devices Based on Poly(2-(N-carbazolyl)ethyl met...
Next Document: An Approach to the Regioselective Diamination of Conjugated Di- and Trienes.