A ELSEVIER International Journal of Mass Spectrometry 179/180 (1998) v-vi CONTENTS Special Issue: In Honour of Fulvio Cacace, edited by Romano Cipollini, Pierluigi Giacomello, and Maurizio Speranza Foreword Fulvio Cacace: Note of Appreciation Association of the ammonium ion with a@,w-alkanediols John A. Stone and Michael D. Carter (Ontario, Canada) Generation of neutral and cationic hydrogen shift isomers of pyridine: a combined experimental and computational investigation David J. Lavorato, Johan K. Terlouw (West Hamilton, Canada), Graham A. McGibbon (Quebec, Canada), Thomas K. Dargel, Wolfram Koch, and Helmut Schwarz (Berlin, Germany) Functional group interactions in the fragmentation of protonated and methylated succinic acid derivatives Ya-Ping Tu and Alex. G. Harrison (Ontario, Canada) Theoretical analysis of ethylene adducts to ion-bombarded porous silica Nazzareno Re, Antonio Sgamellotti (Perugia, Italy), and Gianfranco Cerofolini (Agrate, Italy) Sulfur-sulfur three-electron bond dissociation enthalpies of dialkyl sulfide dimer radical cations Sam P. de Visser (Amsterdam, The Netherlands), F. Matthias Bickelhaupt (Marburg, Germany), Leo J. de Koning, and Nico M.M. Nibbering (Amsterdam, The Netherlands) Mechanisms of reactions of BH}, HBOH*, and H,BOH; with H,O. An experimental gas phase isotope labeling and theoretical ab initio study Roustam Gareyev, Travis J. DePuy, Veronica M. Bierbaum, and Charles H. DePuy (Boulder, CO, USA) Formation of two deprotonated forms of benzyl acetate and higher homologues: some unusual fragmentations Suresh Dua, C.S. Brian Chia, and John H. Bowie (Adelaide, South Australia) Production and magnetic analysis of beams of S atoms and SO radicals: a collisional study of their interactions with hydrogen molecules Vincenzo Aquilanti, Daniela Ascenzi, Elisabetta Braca, David Cappelletti, and Fernando Pirani (Perugia, Italy) Abstracted/Contents in: Chem. Abstr.; Curr. Contents, Phys. Chem. Earth Sci.; EMBASE/Excerpta Medica; INSPEC; Mass Spectrom. Bull.; PASCAL/CNRS 1387-3806( 19981123) 179/180*; 1-8 (CONTENTS CONTINUED) Exploring the potential energy surfaces of the reactions of O*(*S) and O*(*D) with ammonia Ana I. Gonzdlez, Otilia Mé, and Manuel Ydfiez (Madrid, Spain) Studying protonated ion hydration by infrared spectroscopy of size-selected NH,*(H,O),, clusters in a free jet expansion Hai-Chou Chang, Yih-Sheng Wang, Yuan T. Lee, and Huan-Cheng Chang (Taiwan, Republic of China) Gas phase activation of carbon dioxide by niobium and niobium monoxide cations M.R. Sievers and P.B. Armentrout (Salt Lake City, UT, USA) Thermal electron detachment of the molecular anion of azulene at elevated pressures by ion mobility spectrometry K.E. Sahlstrom, W.B. Knighton, and E.P. Grimsrud (Bozeman, MT, USA) Mobile protons in large gaseous alkylbenzenium ions. The 21-proton equilibration in protonated tetrabenzylmethane and related “proton dances” Dietmar Kuck (Bielefeld, Germany and Paderborn, Germany), Allan Petersen (Copenhagen, Denmark), and Uwe Fastabend (Bielefeld, Germany) Large gaseous alkylbenzenium ions. The apparently simultaneous loss of two molecules of benzene from potonated tri- and tetrabenzylmethane Dietmar Kuck (Bielefeld, Germany) and Uwe Fastabend (Paderborn, Germany) Ion/molecule reactions of protonated diglycine: an electrospray ionization flow tube reactor experiment G. Koster, M. Soskin, M. Peres, and C. Lifshitz (Jerusalem, Israel) Gas-phase negative ion chemistry of molecular fluorine. Synthesis of distonic radical anions and related species Paul G. Wenthold, Jun Hu, Brian T. Hill, and Robert R. Squires (West Lafayette, IN, USA) Accelerator mass spectrometry for assaying irreversible covalent modification of an enzyme by acetoacetic ester Jacqueline S. Bennett, Darren W. Bell (Riverside, CA, USA), Bruce A. Buchholz (Livermore, CA, USA), Eric §.C. Kwok (Riverside, CA, USA), John S. Vogel (Livermore, CA, USA), and Thomas Hellman Morton (Riverside, CA, USA) Gas phase agostic bonding in pyridine SiF* (nm = 1, 3) cluster ions investigated by the kinetic method Feng Wang, Shuguang Ma, Philip Wong, R. Graham Cooks (West Lafayette, IN, USA), Fabio C. Gozzo, and Marcos N. Eberlin (Campinas, Brazil) Polycondensation of benzyl methyl ether by reaction with gaseous benzyl cations— a potpourri of mechanisms of organic ion/molecule reactions Hans-Friedrich Griitzmacher and Silvia Dohmeier-Fischer (Bielefeld, Germany) Gas-phase ion chemistry of Ge(OCH,), Luciano A. Xavier and José M. Riveros (Sao Paulo, Brazil) Gas-phase Fe’- assisted cycloaddition reactions of cyclopentadiene with small alkenes and alkynes Quan Chen, Cathy Sioma, Steven Z. Kan, and Ben S. Freiser (West Lafayette, IN, USA) (CONTENTS CONTINUED) Reactions of H,O*(H,O),, and H*(H,O),(CH,COCH,),, with CH,SCH, Susan T. Arnold, Joseph M. Thomas, and A.A. Viggiano (Hanscom AFB, MA, USA) Energy partitioning following the infrared photofragmentation of SF,.(C,H,)* cluster ions S. Atrill and A.J. Stace (Brighton, UK) “Thermochemical mimicry” of phenyl and vinyl groups: can it be extended to charged species? Edward P. Hunter, Sharon G. Lias (Gaithersburg, MD, USA), Christopher M. Rooney, John L. Winstead, and Joel F. Liebman (Baltimore, MD, USA) Gas-phase reactions of fullerene cations Ci; (x = 1-3) with pyridine and pyrrole: formation of “ball-and-chain” and “spindle” isomers and their interconversion Jing Sun and Diethard K. Bohme (Ontario, Canada) Gas phase ion chemistry in methylgermane and methylgermane/silane M. Castiglioni, L. Operti, R. Rabezzana, G.A. Vaglio, and P. Volpe (Torino, Italy) Proton affinity of cyanogen and association reactions of C,N,H* and C,N,CH} Daniel B. Milligan, David A. Fairley, Michael Meot-Ner (Mautner), and Murray J. McEwan (Christchurch, New Zealand) Gas phase catalyzed keto-enol isomerization of cations by proton transport G. Van der Rest, P. Mourgues (Palaiseau, France), J. Tortajada (Paris, France), and H.E. Audier (Palaiseau, France) Heats of formation of imine and enamine radical cations and the corresponding neutral molecules Jens Henriksen and Steen Hammerum (Copenhagen, Denmark) Ion bombardment of PbO, films: water influence of cluster production R. Amadelli (Ferrara, Italy), A.B. Velichenko (Dniepropetrovsk, Ukraine), E. Tondello, L. Armelao, S. Daolio, and M. Fabrizio (Padova, Italy) Molecular beam studies of ammonia clustered with metals produced by pulsed laser reactive ablation T.M. Di Palma, A. Latini, M. Satta, and A. Giardini Guidoni (Tito Scalo, Italy) Reactions of iodine oxide and iodine oxoacid anion species with nitric acid R.S. MacTaylor, J.J. Gilligan, and A.W. Castleman Jr. (University Park, PA, USA) Rearrangement and dissociation of ionized 1,2-diaminoethane G. Bouchoux, N. Choret, A. Milliet, M. Rempp (Palaiseau, France), and J.K. Terlouw (Ontario, Canada) Experimental and theoretical investigation of gas phase complexes between chloride ion and some chloroethenes Alessandro Bagno, Anna Dono, Silvia Martinucci, Cristina Paradisi, and Gianfranco Scorrano (Padova, Italy) Author Index Subject Index The table of contents of The International Journal of Mass Spectrometry is included in ESTOC—Elsevier Science Tables of Contents service, which can be accessed on the World Wide Web at the following URLs: http://www.elsevier.nl/locate/estoc or http://www.elsevier.com/locate/estoc For more information see URL LJMSP Home Page: http://www.elsevier.nl/locate/ijmsp