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Titolo:
Multiphoton ionization and ab initio calculation of the hydrogen-bonded clusters (C5H5N)(n)(NH3)(m)
Autore:
Hu, YJ; Lu, RC; Cai, Y; Wang, XY;
Indirizzi:
Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China Chinese Acad Sci Dalian Peoples R China 116023 n 116023, Peoples R China
Titolo Testata:
JOURNAL OF MASS SPECTROMETRY
fascicolo: 3, volume: 36, anno: 2001,
pagine: 329 - 335
SICI:
1076-5174(200103)36:3<329:MIAAIC>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
GAS-PHASE; ELECTRONIC-SPECTRA; MASS-SPECTROMETER; AMMONIA CLUSTERS; PROTON-TRANSFER; FT-IR; PYRIDINE; COMPLEXES; WATER; SPECTROSCOPY;
Keywords:
pyridine; ammonia; molecular clusters; hydrogen bond; time-of-flight;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Wang, XY Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China Chinese Acad Sci Dalian Peoples R China 116023 Peoples R China
Citazione:
Y.J. Hu et al., "Multiphoton ionization and ab initio calculation of the hydrogen-bonded clusters (C5H5N)(n)(NH3)(m)", J MASS SPEC, 36(3), 2001, pp. 329-335

Abstract

Multiphoton ionization of pyridine-ammonia binary clusters was studied using a time-of-flight mass spectrometer at 532 nm laser wavelength. The experimental results showed that the main products of the cluster ionization were the protonated cluster ions [(Py)(n)(NH3)(m)H](+). The proton transfer inthe multiphoton ionization process is discussed. The hypervalent cluster ions [(Py)(NH3)(n)H-2](+) (n = 1-4) were observed in the experiment and their formation mechanism, the geometric structures and the binding energies are discussed. The results of the theoretical calculation were in agreement with the experimental observations that the binary cluster ions [(Py)(3)NH4](+) and [(Py)(4)NH4](+) were the 'magic number' ions. Copyright (C) 2001 John Wiley & Sons, Ltd.

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Documento generato il 16/07/20 alle ore 19:14:45