PMID- 21374793
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20110802
LR  - 20110412
IS  - 1528-0691 (Electronic)
IS  - 1528-0691 (Linking)
VI  - 11
IP  - 2
DP  - 2011 Apr
TI  - Transition-state spectroscopy using ultrashort laser pulses.
PG  - 99-116
LID - 10.1002/tcr.201000018 [doi]
AB  - To gain a complete understanding of a chemical reaction, it is necessary to 
      determine the structural changes that occur to the reacting molecules during the 
      reaction. Chemists have long dreamed of being able to determine the molecular 
      structure changes that occur during a chemical reaction, including the structures 
      of transition states (TSs). The use of ultrafast spectroscopy to gain a detailed 
      knowledge of chemical reactions (including their TSs) promises to be a 
      revolutionary way to increase reaction efficiencies and enhance the reaction 
      products, which is difficult to do using conventional methods that are based on 
      trial and error. To confirm the molecular structures of TSs predicted by 
      theoretical analysis, chemists have long desired to directly observe the TSs of 
      chemical reactions. Direct observations have been realized by ultrafast 
      spectroscopy using ultrashort laser pulses. Our group has been able to stably 
      generate visible to near-infrared sub-5-fs laser pulses using a noncollinear 
      optical parametric amplifier (NOPA). We used these sub-5-fs pulses to study 
      reaction processes (including their TSs) by detecting structural changes. We 
      determine reaction mechanisms by observing the TSs in a chemical reaction and by 
      performing density-functional theory calculations.
CI  - Copyright (c) 2011 The Japan Chemical Journal Forum and Wiley Periodicals, Inc.
FAU - Kobayashi, Takayoshi
AU  - Kobayashi T
AD  - Department of Applied Physics and Chemistry and Institute for Laser Science, 
      University of Electro-Communications, Chofugaoka, Chofu, Tokyo, Japan. 
      kobayashi@ils.uec.ac.jp
FAU - Yabushita, Atsushi
AU  - Yabushita A
LA  - eng
PT  - Journal Article
DEP - 20110304
PL  - United States
TA  - Chem Rec
JT  - Chemical record (New York, N.Y.)
JID - 101085550
EDAT- 2011/03/05 06:00
MHDA- 2011/03/05 06:01
CRDT- 2011/03/05 06:00
PHST- 2010/07/14 00:00 [received]
PHST- 2011/03/05 06:00 [entrez]
PHST- 2011/03/05 06:00 [pubmed]
PHST- 2011/03/05 06:01 [medline]
AID - 10.1002/tcr.201000018 [doi]
PST - ppublish
SO  - Chem Rec. 2011 Apr;11(2):99-116. doi: 10.1002/tcr.201000018. Epub 2011 Mar 4.