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Titolo:
Electrospray mass spectrometry beyond analytical chemistry: studies of organometallic catalysis in the gas phase
Autore:
Plattner, DA;
Indirizzi:
ETH Zurich, Organ Chem Lab, CH-8092 Zurich, Switzerland ETH Zurich Zurich Switzerland CH-8092 m Lab, CH-8092 Zurich, Switzerland
Titolo Testata:
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
fascicolo: 3, volume: 207, anno: 2001,
pagine: 125 - 144
SICI:
1387-3806(20010516)207:3<125:EMSBAC>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
COLLISION-INDUCED DISSOCIATION; C-H ACTIVATION; TRANSITION-METAL COMPLEXES; BOND METATHESIS REACTIONS; LIGAND CHARGE-TRANSFER; OXOCHROMIUM(V) CATIONS; BINDING-ENERGIES; THERMOCHEMICAL DETERMINATIONS; IRIDIUM(III) COMPLEXES; THRESHOLD MEASUREMENTS;
Keywords:
electrospray ionization; tandem mass spectrometry; transition-metal catalysis; ion-molecule chemistry; CID threshold measurements;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
97
Recensione:
Indirizzi per estratti:
Indirizzo: Plattner, DA ETH Zurich, Organ Chem Lab, Univ Str 16, CH-8092 Zurich, Switzerland ETH Zurich Univ Str 16 Zurich Switzerland CH-8092 witzerland
Citazione:
D.A. Plattner, "Electrospray mass spectrometry beyond analytical chemistry: studies of organometallic catalysis in the gas phase", INT J MASS, 207(3), 2001, pp. 125-144

Abstract

Electrospray tandem mass spectrometry, one of the most important techniques for the characterization of biological macromolecules, has become increasingly popular as an analytical tool in inorganic/organometallic chemistry. Going one step further, we have shown that the coupling of electrospray ionization to ion-molecule techniques in the gas phase can yield detailed information about elementary reaction steps of transition-metal compounds with fully intact coordination spheres. This method opens a door to the study ofextremely reactive intermediates that have previously not been within reach of condensed-phase techniques. Moreover, working in the gas phase, information about the intrinsic reactivity of the complex itself is obtained, thus excluding solvent effects, aggregation phenomena etc. We have demonstrated the usefulness of this method for various important transition-metal mediated reactions such as C-H activation, oxidation, and olefin polymerization. Through the utilization of collision-induced dissociation (CID) thresholdmethodology, the quantitative measurement of thermochemical data for metal-ligand bond energies and elemental reaction steps is possible. In several instances, we have demonstrated that the CID threshold methodology can be applied to molecules with relatively many degrees of freedom, yielding experimental thermochemical data of high quality. Both the qualitative and quantitative reaction studies of organometallic intermediates will contribute todeepen our mechanistic understanding of important catalytic reactions. (C)2001 Elsevier Science B.V.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 08/04/20 alle ore 07:00:22