Journal of Physical Chemistry, 2002, V 106, N 21, 30 May.

LETTERS

5197-5201 
Real-Time Observation of Intra- and Intermolecular Vibrational Energy Flow of 
Selectively Excited Alkyl Iodides in Solution: The Effect of Chemical 
Substitution 
J. Assmann, A. Charvat, D. Schwarzer, C. Kappel, K. Luther, and B. Abel 

ARTICLES

DYNAMICS AND RELAXATION

5202-5209
 Collisional Deactivation of PH2(A~2A1; v'2 = 1,0) and PH2
(  2B1; v' '2 = 1) by Some 
Triatomic Molecules Chieu Nguyen Xuan and Alessandro Margani 

5210-5220 
Excited State Intramolecular Proton Transfer and Metal Ion Complexation of 2-
(2'-Hydroxyphenyl)benzazoles in Aqueous Solution 
Maged M. Henary and Christoph J. Fahrni 

SPECTROSCOPY, GASEOUS CLUSTERS, AND MOLECULAR BEAMS

5221-5229
Isotopically Selective Infrared Multiphoton Dissociation of Vibrationally 
Excited SiH4 
J. Makowe, O. V. Boyarkin, and T. R. Rizzo 

5230-5241 
Breathers or Structural Instability in Solid L-Alanine: a New IR and Inelastic 
Neutron Scattering Vibrational Spectroscopic Study 
Mariette Barthes, Aasmund Fahre Vik, Alexandra Spire, Heloisa N. Bordallo, and Juergen Eckert 

5242-5248
Electronic Spectra and Structures of Solvated NH4 Radicals, NH4(NH3)n (n = 1-8) 
Shinji Nonose, Tomokazu Taguchi, Feiwu Chen, Suehiro Iwata, and Kiyokazu Fuke 

5249-5262 
Isolated Building Blocks of Photonic Materials: High-Resolution Excited-State 
Photoelectron Spectroscopy of Jet-Cooled Tetramethylethylene and 1,1'-
Bicyclohexylidene 
R. A. Rijkenberg and W. J. Buma , C. A. van Walree and L. W. Jenneskens 

5263-5270 
Effect of Solvent on the O2(a  g)
  O2(b1 
 g+) Absorption Spectrum: 
Demonstrating the Importance of Equilibrium vs Nonequilibrium Solvation 
Niels Dam, Tama's Keszthelyi, Lars K. Andersen, Kurt V. Mikkelsen, and Peter R. Ogilby 

KINETICS; ATMOSPHERIC AND ENVIRONMENTAL PHYSICAL CHEMISTRY

5271-5278 
Influence of Visible Light and Malonic Acid Derivatives on the Autocatalytic 
Oxidation of Ru(II) by Bromate Ions 
Ludovit Treindl, Takeko Matsumura-Inoue, and Peter Ruoff 

5279-5287 
Kinetics and Product Yields in the Heterogeneous Reactions of HOBr with Ice 
Surfaces Containing NaBr and NaCl 
Amy K. Huff and Jonathan P. D. Abbatt 

5288-5296 
Solvent Mediated Superexchange in a C-Clamp Shaped Donor-Bridge-Acceptor 
Molecule: The Correlation between Solvent Electron Affinity and Electronic 
Coupling 
Andrew M. Napper, Ian Read, Ruth Kaplan, Matthew B. Zimmt, and David H. Waldeck 

5297-5313 
Rate Constants For H + O2 + M  HO2 
+ M in Seven Bath Gases 
J. V. Michael, M.-C. Su, J. W. Sutherland, J. J. Carroll, and A. F. Wagner 

5314-5322 
Dynamics Study of the OH + O2 Branching Atmospheric Reaction. 4. Influence of 
Vibrational Relaxation in Collisions Involving Highly Excited Species 
J. D. Garrido, P. J. S. B. Caridade, and A. J. C. Varandas 

5323-5338 
Dynamics of 1,2-Hydrogen Migration in Carbenes and Ring Expansion in 
Cyclopropylcarbenes Titus V. Albu, Benjamin J. Lynch, and Donald G. Truhlar , 
Alan C. Goren, David A. Hrovat, and Weston Thatcher Borden , Robert A. Moss 

MOLECULAR STRUCTURE, BONDING, QUANTUM CHEMISTRY, AND GENERAL THEORY

5339-5347 
Theoretical Studies Concerning the Optimization of Conjugated Molecules for 
Third-Order Nonlinear Optics 
Eric E. Moore and David Yaron 

5348-5352 Excimer Formation of Dimethyl 2,6-Naphthalene Dicarboxylate Embedded 
in a Poly(methyl methacrylate) 
Matrix C. Spies and R. Gehrke 

5353-5357 
Spin-Philicity and Spin-Donicity as Auxiliary Concepts To Quantify Spin-
Catalysis Phenomena 
Patricia Pe'rez, Juan Andre's, V. S. Safont, O. Tapia, and Renato Contreras 

5358-5366 
Rate Coefficient and Product Branching Measurements for the Reaction OH + 
Bromopropane from 230 to 360 K 
Mary K. Gilles, James B. Burkholder, Tomasz Gierczak, Paul Marshall, and A. R. Ravishankara 

5367-5372 
Theoretical Study of Potential Energy Surfaces for N12 Clusters 
Qian Shu Li and Jun Fang Zhao 

5373-5379 
Aromatic Carboxylate Superhalogens and Multiply Charged Anions 
Mark Enlow and J. V. Ortiz 

5380-5384 
Electronic Structure of Thiophene Oligomer Dications: An Alternative 
Interpretation from the Spin-Unrestricted DFT Study 
Yi Gao, Chun-Gen Liu, and Yuan-Sheng Jiang 

5385-5392 
To What Extent Do External Fields and Vibrational and Isotopic Effects Influence 
NMR Coupling Constants Across Hydrogen Bonds? Two-Bond Cl-N Spin-Spin Coupling 
Constants (2hJCl-N) in Model ClH:NH3 Complexes Janet E. Del Bene and Meredith J. T. Jordan 

GENERAL PHYSICAL CHEMISTRY

5393-5402 
Ionic Hydration Behavior Derived from Infrared Spectra in HDO 
Janusz Stangret and Teresa Gampe