Published December 10, 2008 | Version v1
Journal article Metadata-only

Ultrafast generation/annihilation dynamics of the tert-butyl carbocation in sulfuric acid as studied by Raman band shape analysis

Creators

  • 1. Department of Chemistry, School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)

Description

The ultrafast generation/annihilation dynamics of the tert-butyl carbocation (ultrafast dehydration/hydration dynamics of tert-butyl alcohol) in sulfuric acid has been studied quantitatively by Raman band shape analysis. The two-state exchange model successfully explains the change of the Raman band shape with increasing proton concentration and hence with increasing the rate of dehydration. Highly dynamic nature of the carbocation has been elucidated; in 1 mol dm-3 sulfuric acid, it is generated in timescales of 10 ps, and is annihilated with lifetimes of about 500 fs

Availability note (English)

Available from http://dx.doi.org/10.1016/j.chemphys.2007.12.024

Additional details

Identifiers

DOI
10.1016/j.chemphys.2007.12.024;
PII
S0301-0104(08)00005-0;

Publishing Information

Journal Title
Chemical Physics
Journal Volume
354
Journal Issue
1-3
Journal Page Range
p. 27-31
ISSN
0301-0104
CODEN
CMPHC2

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40084382
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ANNIHILATION; BUTANOLS; DEHYDRATION; HYDRATION; PERIPHERAL MODELS; PROTONS; SULFURIC ACID
Descriptors DEC
ALCOHOLS; BARYONS; ELEMENTARY PARTICLES; FERMIONS; HADRONS; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; INTERACTIONS; MATHEMATICAL MODELS; NUCLEONS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; PARTICLE INTERACTIONS; PARTICLE MODELS; SOLVATION; SULFUR COMPOUNDS

Optional Information

Copyright
Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.