The Journal of Physical Chemistry A, 2000, V 104, N 21, 1 June.

LETTERS

 4811-4815 
Adiabatic Connection for Kinetics 
Benjamin J. Lynch, Patton L. Fast, Maegan Harris, and 
Donald G. Truhlar 

ARTICLES


DYNAMICS AND RELAXATION

 4816-4824 
Transient Absorption and Resonance Raman Investigations on the
Axial Ligand Photodissociation of Halochromium(III)
Tetraphenylporphyrin Sae Chae Jeoung and Dongho Kim , Dae Won
Cho , Minjoong Yoon 

 4825-4832 
Intersystem Crossing and Nonadiabatic Product Channels in the
Photodissociation of N2O4 at 193 nm Julie A. Mueller, Melita L.
Morton, Stephen L. Curry, Jonathan P. D. Abbatt, and Laurie J.
Butler 

 4833-4838 
A Picosecond Kinetic Study of Nonadiabatic Proton Transfer
within the Contact Radical Ion Pair of Substituted
Benzophenones/N,N-Diethylaniline Kevin S. Peters and Amanda
Cashin 

 4839-4845 
NMR Paramagnetic Relaxation Enhancement: Measurement of an
Axial/Equatorial T1 Ratio for S = 1 in the Zero-Field Splitting
Limit Jeremy Miller, Shawn Abernathy, and Robert Sharp


 4846-4856 
Monomer Exchange and Concentration Fluctuations in
Poly(ethylene glycol) Monoalkyl Ether/Water Mixtures.
Dependence upon Nonionic Surfactant Composition T. Telgmann and
U. Kaatze 

 4857-4865 
Enhanced Intersystem Crossing in Gable-Type Copper(II)
Porphyrin-Free Base Porphyrin Dimers: Evidence of Through-Bond
Exchange Interaction Namiki Toyama, Motoko Asano-Someda,
Takatoshi Ichino, and Youkoh Kaizu 

 4866-4875 
Vibrational Energy Relaxation and Spectral Diffusion in Water
and Deuterated Water John C. Deàk, Stuart T. Rhea, Lawrence K.
Iwaki, and Dana D. Dlott 

 4876-4881 
Solvent Polarity Dependence of Photoinduced Charge Separation
in a Tetrathiophene-C60 Dyad Studied by Pico- and Nanosecond
Laser Flash Photolysis in the Near-IR Region Mamoru Fujitsuka,
 Osamu Ito,, Takashi Yamashiro, Yoshio Aso, and Tetsuo Otsubo, 

 4882-4888 
Competitive Local Laser Control of Photodissociation Reaction
HCo(CO)4  HCo(CO)3 + CO in Electronic Ground State Yi
Zhao and Oliver Kühn 

 4889-4895 
Paramagnetic NMR Relaxation Enhancement: Spin Dynamics
Simulations of the Effect of Zero-Field Splitting Interactions
for S = 5/2 Jeremy C. Miller and Robert R. Sharp

4896-4905 
Magnetic Field Effects on Chemical Reactions of Biradical
Radical Ion Pairs in Homogeneous Fluid Solvents Yukie Mori,
Yoshio Sakaguchi, and Hisaharu Hayashi 

SPECTROSCOPY, GASEOUS CLUSTERS, AND MOLECULAR BEAMS

 4906-4911 
Resolution Enhancement and Band Assignments for the First
Overtone of OH(D) Stretching Modes of Butanols by
Two-Dimensional Near-Infrared Correlation Spectroscopy. 3.
Thermal Dynamics of Hydrogen Bonding in Butan-1-(ol-d) and
2-Methylpropan-2-(ol-d) in the Pure Liquid States
Mirosaw A. Czarnecki and Bogusawa
Czarnik-Matusewicz , Yukihiro Ozaki , Makio Iwahashi

4912-4919 
Ion Mobility of Precritical Clusters in Supersaturated Vapors:
Condensation of Supersaturated Methanol Vapor Induced by
Toluene and Styrene Ions D. Kane, M. Rusyniak, S. P. Fisenko,
and M. S. El-Shall 

 4920-4927 
Structures, Energies, and Electrostatics for Methane Complexed
with Alumina Clusters Ellen F. Sawilowsky, Oussama Meroueh, H.
Bernhard Schlegel, and William L. Hase 

 4928-4935 
Theoretical Study of Ultraviolet Absorption Spectra of Tetra-
and Pentacoordinate Silicon Compounds Chizuru Muguruma, Nobuaki
Koga, Yasuo Hatanaka, Ibrahim El-Sayed, Masuhiro Mikami, and
Masato Tanaka 

 4936-4942 
The 2B1, Ã2B2, 2A1, and 2A2 States of
Cl2O+: ab Initio Calculations and Simulations of the He I
Photoelectron Spectrum De-chao Wang, Edmond P. F. Lee, Foo-tim
Chau, Daniel K. W. Mok, and John M. Dyke 

 4943-4952 
Spectroscopy of Hydrogen-Bonded Formanilide Clusters in a
Supersonic Jet: Solvation of a Model Trans Amide A. V. Fedorov
and J. R. Cable 

 4953-4961 Absolute CH Radical Concentrations in Rich Low-Pressure
Methane-Oxygen-Argon Flames via Cavity Ringdown Spectroscopy of
the A2-X2 Transition John W. Thoman, Jr. , Andrew
McIlroy 

 4962-4967 
EPR Studies on a Binitroxide Fullerene Derivative in the Ground
Triplet and First Photoexcited Quintet State Fosca Conti, Carlo
Corvaja, and Antonio Toffoletti , Norikazu Mizuochi, Yasunori
Ohba, and Seigo Yamauchi , Michele Maggini 

 4968-4975 
Microwave Spectrum of the N2O-SO2 Dimer: Evidence for Tunneling
and an Asymmetric Structure Rebecca A. Peebles and Robert L.
Kuczkowski 

 4976-4983 
Absolute Intensities for Third and Fourth Overtone Absorptions
in HNO3 and H2O2 Measured by Cavity Ring Down Spectroscopy
Steven S. Brown, Robert W. Wilson, and A. R. Ravishankara

4984-4988 
Carbonyl Spectator Bonds as Sensitive Sensors for Charge
Transfer Reactions on the Femtosecond Time Scale Martin Volk,
Peter Gilch, Christian Kompa, Reinhard Haselsberger, Peter
Härter, Marco Stöckl, Wolfgang Scherer, Klaus Latzel, and
Maria-Elisabeth Michel-Beyerle 

KINETICS; ATMOSPHERIC AND ENVIRONMENTAL PHYSICAL CHEMISTRY

 4989-4996 
Photochemical Formation of Copper(I) from
Copper(II)-Dicarboxylate Complexes: Effects of Outer-Sphere
versus Inner-Sphere Coordination and of Quenching by Malonate
Chien-Hou Wu, Lizhong Sun, and Bruce C. Faust 

 4997-5012 
Kinetic Analysis for HO2 Addition to Ethylene, Propene, and
Isobutene, and Thermochemical Parameters of Alkyl
Hydroperoxides and Hydroperoxide Alkyl Radicals Chiung-Ju Chen
and Joseph W. Bozzelli 

 5013-5022 
Kinetics and Thermochemistry of the OH Radical Reaction with
CF3CCl2H and CF3CFClH Takahiro Yamada, Tunchen D. Fang, Philip
H. Taylor, and Rajiv J. Berry 

 5023-5028 
Solvent-Assisted Rearrangements between Tautomers of Protonated
Peptides Christopher F. Rodriquez, Alwin Cunje, Tamer Shoeib,
Ivan K. Chu, Alan C. Hopkinson, and K. W. Michael Siu

5029-5035 
Time-Resolved Fluorescence Study on the Pressure-Induced
Viscosity Dependence of Exciplex Formation in Liquid Solution
Masami Okamoto 

 5036-5045 
Mechanism and Kinetics of the Reactions of NO2 or HNO3 with
Alumina as a Mineral Dust Model Compound Christoph Börensen,
Ulf Kirchner, Volker Scheer, Rainer Vogt, and Reinhard Zellner

5046-5058 
Thermochemistry and Reactivity of Cationic Scandium and
Titanium Sulfide in the Gas Phase Ilona Kretzschmar, Detlef
Schröder, and Helmut Schwarz , Chad Rue and P. B. Armentrout

5059-5065 
Ion Mobility Measurement by Dc Tomography in an Rf Quadrupole
Ion Trap Wolfgang R. Plass, Lynn A. Gill, Huy A. Bui, and R.
Graham Cooks 

 5066-5071 
Neutron Diffraction Studies of CO2 Clathrate Hydrate: Formation
from Deuterated Ice Robert W. Henning, Arthur J. Schultz, Vu
Thieu, and Yuval Halpern 

 5072-5079 
Chemistry of the Cyclopentoxy and Cyclohexoxy Radicals at
Subambient Temperatures John J. Orlando, Laura T. Iraci, and
Geoffrey S. Tyndall 

MOLECULAR STRUCTURE, BONDING, QUANTUM CHEMISTRY, AND GENERAL THEORY

 5080-5086 
A Density Functional Theory Study of the Radiation Products of
Glycine Fuqiang Ban, James W. Gauld, and Russell J. Boyd

 5087-5092 
Tautomerization of Nucleobase Model Compounds: The 4-Pyridinol
and 4(1H)-Pyridinone Monomers and Their Dimers Jeffrey R.
Reimers, Lachlan E. Hall, and Noel S. Hush 

 5093-5100 
Ab Initio Studies for Geometrical Structures of Ammonia Cluster
Cations Jong Keun Park 

 5101-5110 
Second Ionization Energies of Gaseous Iron Oxides and
Hydroxides: The FeOmHn2+ Dications (m = 1, 2; n  4)
Detlef Schröder, Susanne Bärsch, and Helmut Schwarz

 5111-5114 
Existence of Posner's Cluster in Vacuum Gabin Treboux, Pierre
Layrolle, Noriko Kanzaki, Kazuo Onuma, and Atsuo Ito

5115-5121 
Conformational Analysis of N,N,N',N'-Tetramethylsuccinamide:
The Role of C-H···O Hydrogen Bonds Rubicelia Vargas and Jorge
Garza , David A. Dixon and Benjamin P. Hay 

 5122-5130 
Are the Thiouracils Sulfur Bases in the Gas-phase? M. Lamsabhi,
M. Alcamí, O. Mó, W. Bouab, M. Esseffar, J. L.-M. Abboud, and
M. Yáñez 

 5131-5140 
Photochemistry and Photophysics of(p-Benzoylphenyl)diphenylmethyl and
(p-Benzoylphenyl)bis(4-tert-butylphenyl)methyl Radicals in
Different Solvents Viktor V. Jarikov, Alexandre V.
Nikolaitchik, and Douglas C. Neckers 

 5141-5148 
Gas-Phase Reactions of HONO with HNO and NH3: an Ab Initio
MO/TST Study Xin Lu, Ryza N. Musin, and M. C. Lin

5149-5153 
Hydrogen Bonding to Tyrosyl Radical Analyzed by Ab Initio
g-Tensor Calculations Maria Engström, Fahmi Himo, Astrid
Gräslund, Boris Minaev, Olav Vahtras, and Hans Agren

GENERAL PHYSICAL CHEMISTRY

 5154-5159 
Diffusive Propagation of Chemical Waves through a Microgap
Kenji Suzuki, Tatsuo Yoshinobu, and Hiroshi Iwasaki


ADDITIONS AND CORRECTIONS

 5160-5160 
Uptake of Gas-Phase Ammonia. 1. Uptake by Aqueous Surfaces as a
Function of pH Q. Shi, P. Davidovits, J. T. Jayne, D. R.
Worsnop, and C. E. Kolb: