A Caltech Library Service

Femtosecond dynamics of diradicals: transition states, entropic configurations and stereochemistry

De Feyter, Steven and Diau, Eric W.-G. and Scala, Alfred A. and Zewail, Ahmed H. (1999) Femtosecond dynamics of diradicals: transition states, entropic configurations and stereochemistry. Chemical Physics Letters, 303 (3-4). pp. 249-260. ISSN 0009-2614. doi:10.1016/S0009-2614(99)00263-8.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


With femtosecond-resolved mass spectrometry, we report real-time studies of the dynamics of reactive diradicals: trimethylene, tetramethylene and structurally-constrained (by a bridge) tetramethylene. These comparative studies elucidate the role of transition states, entropic configurations and IVR on the global potential energy surface. The critical time scale for rotational clocks in stereochemistry is illustrated in the reaction mechanism for cyclization and fragmentation products.

Item Type:Article
Related URLs:
URLURL TypeDescription
Additional Information:© 1999 Elsevier Science B.V. Received 8 February 1999. Available online 8 April 1999. This work was supported by the National Science Foundation and the Office of Naval Research. SDF, a postdoctoral fellow of the Fund for Scientific Research-Flanders, acknowledges a Fulbright scholarship and financial support by the Katholieke Universiteit Leuven and by Caltech.
Funding AgencyGrant Number
Office of Naval Research (ONR)UNSPECIFIED
Fonds Wetenschappelijk Onderzoek - Vlaanderen (FWO)UNSPECIFIED
Fulbright FoundationUNSPECIFIED
Katholieke Universiteit LeuvenUNSPECIFIED
Issue or Number:3-4
Record Number:CaltechAUTHORS:20160823-144513327
Persistent URL:
Official Citation:Steven De Feyter, Eric W.-G. Diau, Alfred A. Scala, Ahmed H. Zewail, Femtosecond dynamics of diradicals: transition states, entropic configurations and stereochemistry, Chemical Physics Letters, Volume 303, Issues 3–4, 9 April 1999, Pages 249-260, ISSN 0009-2614, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:69854
Deposited By: Ruth Sustaita
Deposited On:26 Aug 2016 18:12
Last Modified:11 Nov 2021 04:20

Repository Staff Only: item control page