Variational transition state theory with multidimensional tunneling

A Fernandez-Ramos, BA Ellingson… - Reviews in …, 2007 - Wiley Online Library
This review describes the application of variational transition state theory (VTST) to the
calculation of chemical reaction rates. In 1985, two of us, together with Alan D. Isaacson …

An unexpected role of a trace amount of water in catalyzing proton transfer in phosphine-catalyzed (3+ 2) cycloaddition of allenoates and alkenes

Y Xia, Y Liang, Y Chen, M Wang, L Jiao… - Journal of the …, 2007 - ACS Publications
Through the joint forces of computation and experiment, the detailed mechanism of the Lu
phosphine catalyzed (3+ 2) cycloaddition of allenoates and alkenes has been elucidated …

Reaction-path dynamics in redundant internal coordinates

YY Chuang, DG Truhlar - The Journal of Physical Chemistry A, 1998 - ACS Publications
This paper presents a general method for reaction-path calculations with redundant
curvilinear internal coordinates. Following Pulay and Fogarasi, the generalized inverse of …

Nitroxyl radical plus hydroxylamine pseudo self-exchange reactions: Tunneling in hydrogen atom transfer

A Wu, EA Mader, A Datta, DA Hrovat… - Journal of the …, 2009 - ACS Publications
Bimolecular rate constants have been measured for reactions that involve hydrogen atom
transfer (HAT) from hydroxylamines to nitroxyl radicals, using the stable radicals TEMPO•(2 …

Tunneling in Hydrogen-Transfer Isomerization of n-Alkyl Radicals

B Sirjean, E Dames, H Wang… - The Journal of Physical …, 2012 - ACS Publications
The role of quantum tunneling in hydrogen shift in linear heptyl radicals is explored using
multidimensional, small-curvature tunneling method for the transmission coefficients and a …

Experimental Evidence for Heavy-Atom Tunneling in the Ring-Opening of Cyclopropylcarbinyl Radical from Intramolecular 12C/13C Kinetic Isotope Effects

OM Gonzalez-James, X Zhang, A Datta… - Journal of the …, 2010 - ACS Publications
The intramolecular 13C kinetic isotope effects for the ring-opening of cyclopropylcarbinyl
radical were determined over a broad temperature range. The observed isotope effects are …

Calculations predict that carbon tunneling allows the degenerate Cope rearrangement of semibullvalene to occur rapidly at cryogenic temperatures

X Zhang, DA Hrovat, WT Borden - Organic Letters, 2010 - ACS Publications
Calculations on the role of tunneling in the degenerate Cope rearrangements of
semibullvalene (1) and barbaralane (3) predict that, at temperatures below 40 K, tunneling …

Reactions of hydrogen atom with hydrogen peroxide

BA Ellingson, DP Theis, O Tishchenko… - The Journal of …, 2007 - ACS Publications
Rate coefficients are calculated using canonical variational transition state theory with
multidimensional tunneling (CVT/SCT) for the reactions H+ H2O2→ H2O+ OH (1a) and H+ …

Theoretical prediction on the thermal stability of cyclic ozone and strong oxygen tunneling

JL Chen, WP Hu - Journal of the American Chemical Society, 2011 - ACS Publications
Dual-level dynamics calculation with variational transition state theory including
multidimensional tunneling has been performed on the isomerization reaction of cyclic …

Calculations predict rapid tunneling by carbon from the vibrational ground state in the ring opening of cyclopropylcarbinyl radical at cryogenic temperatures

A Datta, DA Hrovat, WT Borden - Journal of the American …, 2008 - ACS Publications
B3LYP/6-31G (d) calculations have been performed on the ring opening of
cyclopropylcarbinyl radical 1 to 3-buten-1-yl radical 2. The dynamics of the reaction have …