^*Indicates author to whom correspondence should be addressed

A tandem mass spectrometry study of [C,H₂,X₂,Si]^+• ions (X = H, D, Cl) and the generation of their neutral counterparts

Dmitri V. Zagorevski
Department of Chemistry, University of Missouri-Columbia, Columbia, Missouri 65211, USA
Christiane Aubry and John L. Holmes^*
Chemistry Department, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5

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DOI: 10.1255/ejms.320

Effects of internal hydrogen bonds between amide groups: Gas-phase basicity and proton affinity of linear aliphatic dicarboxamides

Matthias Witt and Hans-Friedrich Grützmacher^*
Fakultät für Chemie der Universität Bielefeld, P.O.B 10 01 31, D-33501 Bielefeld, Germany

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DOI: 10.1255/ejms.317

Gas-phase basicity of formaldehyde by the thermokinetic method

Guy Bouchoux^* and Danielle Leblanc
Département de Chimie, Laboratoire des Mécanismes Réactionnels, URA CNRS 1307, Ecole Polytechnique, 91128 Palaiseau cedex, France

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DOI: 10.1255/ejms.318

Evidence for an alkene metathesis reaction during the unimolecular dissociation of (CH₃)₃COCHCH₂^•+

G. van der Rest, J.P. Denhez, J. Chamot-Rooke, P. Mourgues and H.E. Audier
Laboratoire des Mécanismes Réactionnels, UMR 7651 CNRS, Ecole Polytechnique, F-91128, Palaiseau, France

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DOI: 10.1255/ejms.323

Unimolecular chemistry of ^•CH₂ –O–C^•=O (methylenecarboxyldiradical) and HO–CH=C=O (hydroxyketene) and of the corresponding radical cations and anions in the gas phase

Michael J. Polce, Wei Song, Blas A. Cerda and Chrys Wesdemiotis^*
Department of Chemistry, The University of Akron, Akron, OH 44325-3601, USA

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DOI: 10.1255/ejms.322

Correlation between alkyl cation affinities and proton affinities—a means to rationalise alkyl group substituent effects

Einar Uggerud
Department of Chemistry, University of Oslo, PO Box 1033 Blindern, N-0315 Oslo, Norway. E-mail: einar.uggerud@kjemi.uio.no

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DOI: 10.1255/ejms.324

Rearrangement and loss of bromine radical and CO from some bromobenzyl alcohols following electron ionisation

Jiri Kubista and Vladimir Hanus^*
J. Heyrovsky Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejskova 3, 182 23 Prague 8, Czech Republic
Libor Havlicek
First Faculty of Medicine, Charles University Prague, Na bojisti 3, 121 08 Prague, Czech Republic
Jan Hanus
Isotope Laboratory, Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Videnska 1083, 142 20 Prague 4, Czech Republic
Petr Halada
Institute of Microbiology, Academy of Sciences of the Czech Republic, Videnska 1083, 142 20 Prague 4, Czech Republic
Marek Kuzma
Institute of Chemical Technology, Technicka 5, 166 28 Prague 6, Czech Republic

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DOI: 10.1255/ejms.333

Laser ion kinetics: dynamics of intramolecular reactions in substituted benzalacetones

R. Heinicke, C. Grun and J. Grotemeyer^*
Institute for Physical Chemistry, Christian-Albrechts University Kiel, Olshausenstraße 40, 24098 Kiel, Germany. E-mail: grote@phc.uni- kiel.de

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DOI: 10.1255/ejms.334

Exchange of Cl⁺ between lone-pair donors and p-donors: a computational study

Theis I. Sølling and Leo Radom
Research School of Chemistry, Australian National University, Canberra, ACT 0200, Australia

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DOI: 10.1255/ejms.335

An electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry study of 1,6-methano[60]fullerene-61,61-dicarboxylic acid

Rui Zhang,^* Keith J. Fisher, Derek R. Smith and Gary D. Willett
School of Chemistry, University of New South Wales, Sydney 2052, Australia
J. Barrie Peel
Department of Chemistry, La Trobe University, Bundoora, VIC 3083, Australia
Liangbing Gan and Yaru Shi
State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, Beijing, 100871, PR China
Zhen Gao
State Key Laboratory of Molecular Reaction Dynamics, Chinese Academy of Science, Beijing, PR China

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DOI: 10.1255/ejms.336

Letter: Fast atom bombardment, electrospray, ionspray and tandem mass spectrometry of 1 : 1 b– cyclodextrin/5-methoxytryptamine hydrochloride host–guest complex: host protonation and fragmentation due to guest deamination

Andrea Mele, Walter Panzeri and Antonio Selva^*
C.N.R.- Centro di Studio sulle Sostanze Organiche Naturali, Dipartimento di Chimica del Politecnico di Milano, Via Mancinelli, 7, I- 20131 Milano, Italy
Pierluigi Mauri
C.N.R.-Istituto Tecnologie Biomediche Avanzate, I-20090 Segrate, Italy

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DOI: 10.1255/ejms.319

Decarboxylation of carnitine and a-cyano-4-hydroxycinnamic acid under particle bombardment

Sophie Bourcier and Yannik Hoppilliard^*
DCMR, UMR CNRS 7651, Ecole Polytechnique, 91128 Palaiseau Cedex, France. E-mail: yannik@dcmr.polytechnique.fr
Jean Marie Pechiné and Felix Perez
ESA CNRS 8074, Université Paris-Sud, Batiment 410, 91405 Orsay Cedex, France

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DOI: 10.1255/ejms.337

Elimination of AgR (R = H, CH₃, C₆H₅) from collisionally-activated argentinated amines

R. Natasha Grewal, Christopher F. Rodriquez, Tamer Shoeib, Ivan K. Chu, Ya-Ping Tu, Alan C. Hopkinson and K.W. Michael Siu^*
Department of Chemistry and Centre for Research in Mass Spectrometry, York University, 4700 Keele Street, Toronto, Ontario, Canada M3J 1P3. E-mail: kwmsiu@yorku.ca

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DOI: 10.1255/ejms.326

Characterization of oligosaccharides of the lactosamine series derived from keratan sulfates by tandem mass spectrometry

Masayuki Kubota
Department of Applied Physics and Chemistry, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan
Keiichi Yoshida and Akira Tawada
Tokyo Research Institute, Seikagaku Corporation, Higashiyamatoshi, Tokyo 189, Japan
Mamoru Ohashi^*
Department of Materials Science, Kanagawa University, Tsuchiya, Hiratsuka, Kanagawa 259-1293, Japan

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DOI: 10.1255/ejms.338

Hb Neuilly-sur-Marne, a new human hemoglobin variant with Ser-Asp-Leu inserted between a86(F7) Leu and a87(F8) His: characterization by high-energy collision-induced dissociation liquid secondary ion mass spectrometry and low energy collision- induced dissociation tandem mass spectrometry in an ion trap fitted with a nanospray ionization source

Danielle Promé^* and Jean-Claude Promé
Département de Chimie, 2R1, Université Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse, France
Henri Wajcman, Jean Riou and Frédéric Galactéros
Inserm U468 et Département de Biochimie, Hôpital H. Mondor AP-HP, 94010 Crèteil, France
Nathalie Carte, Emanuelle Leize and Alain Vandorsselaer
Laboratoire de Spectrométrie de Masse, Université Louis Pasteur, 67084 Strasbourg, France

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DOI: 10.1255/ejms.325

Gas-phase ion mobility studies of amines and polyether/amine complexes using tandem quadrupole ion trap/ion mobility spectrometry

Colin S. Creaser^* and John R. Griffiths
Department of Chemistry and Physics, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
Brian M. Stockton
SmithKline Beecham Pharmaceuticals, Old Powder Mills, Nr Leigh, Tonbridge, Kent TN11 9AN, UK

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DOI: 10.1255/ejms.339

The use of accurate mass measurement by orthogonal time-of-flight mass spectrometry in pharmaceuticals research

Frank Cottee
SmithKline Beecham Pharmaceuticals, Analytical Sciences, The Old Powder Mills, Leigh, Tonbridge, Kent, TN11 9AN, UK
Neville Haskins, Duncan Bryant, Christine Eckers and Soraya Monté
SmithKline Beecham Pharmaceuticals, Analytical Sciences, NFSP (N), Harlow, Essex, CM19 5AW, UK

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DOI: 10.1255/ejms.340

Combination of time-of-flight mass analysers with magnetic-sector instruments: in-line and perpendicular arrangements. Applications to poly(ethylene glycol) with long-chain end groups

Andrew R. Botrill, Anastassios E. Giannakopulos, Allen Millichope, Ken S. Lee and Peter J. Derrick
Institute of Mass Spectrometry and Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK, and Unilever Research, Port Sunlight, Quarry Road East, Bebington, Wirral, Merseyside, CH63 3JW, UK

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DOI: 10.1255/ejms.341

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