English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Ultrafast [2+2]-cyclo addition in norbornadiene

Fuß, W., Pushpa, K. K., Schmid, W. E., & Trushin, S. A. (2002). Ultrafast [2+2]-cyclo addition in norbornadiene. Photochemical & Photobiological Sciences, 1(1), 60-66. Retrieved from http://www.rsc.org/CFmuscat/intermediate_pubs.cfm?FURL=/ej/PP/2002/b107442c.PDF&TYP=.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-C27D-4 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-C27E-2
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Fuß, Werner1, 2, Author              
Pushpa, Kumbil Kutta3, Author
Schmid, Wolfram E.1, Author              
Trushin, Sergei A.1, 2, Author              
Affiliations:
1Laser Chemistry, Max Planck Institute of Quantum Optics, Max Planck Society, ou_1445565              
2Laboratory for Attosecond Physics, Max Planck Institute of Quantum Optics, Max Planck Society, ou_1445564              
3Max Planck Society, ou_persistent13              

Content

show
hide
Free keywords: -
 Abstract: Excitation of norbornadiene (bicyclo[2.2.1]hepta-2,5-diene) at 200 nm populates two States in parallel, the second ππ* state and a Rydberg state. We monitored both populations by transient nonresonant ionization. From the ππ* state the molecule relaxes in consecutive steps with time constants 5, 31 and 55 fs down to the ground-state surface, whereas the Rydberg population merges to the other path oil the ππ* surface within 420 fs. The relaxation steps are discussed in terms of conical intersections (Coins) between different surfaces. Information on them is inferred from known spectroscopy and, for the last Coln, from published calculations on Dewar benzene-->prismane conversion and on ethylene photodimerization for which norbornadiene with its two nonconjugated double bonds is a model. The calculation predicts symmetry breaking for this Coln, the two ethylenes forming a rhombus. Although this distortion is hindered in norbornadiene by ring strain, this Coln seems easily accessible as indicated by the short time (<55 fs) found for passing through it.

Details

show
hide
Language(s): eng - English
 Dates: 2002-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Photochemical & Photobiological Sciences
  Alternative Title : Photochem. Photobiol. Sci.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 1 (1) Sequence Number: - Start / End Page: 60 - 66 Identifier: ISSN: 1474-905X