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Titolo:
Photoionization, fragmentation and proton transfer in 1-natphthol(NH3)(n) clusters
Autore:
Knochenmuss, R;
Indirizzi:
ETH Zentrum, LOC, CH-8092 Zurich, Switzerland ETH Zentrum Zurich Switzerland CH-8092 LOC, CH-8092 Zurich, Switzerland
Titolo Testata:
CHEMICAL PHYSICS LETTERS
fascicolo: 6, volume: 311, anno: 1999,
pagine: 439 - 445
SICI:
0009-2614(19991008)311:6<439:PFAPTI>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
GAS-PHASE CLUSTERS; 1-NAPHTHOL AMMONIA; WATER; SIZE; PHENOL-(NH3)N; SPECTROSCOPY; PIPERIDINE; CHEMISTRY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Knochenmuss, R ETH Zentrum, LOC, Univ Str 16, CH-8092 Zurich, Switzerland ETH Zentrum Univ Str 16 Zurich Switzerland CH-8092 zerland
Citazione:
R. Knochenmuss, "Photoionization, fragmentation and proton transfer in 1-natphthol(NH3)(n) clusters", CHEM P LETT, 311(6), 1999, pp. 439-445

Abstract

The fragmentation of photoionized 1-naphthol.(NH3)(n) clusters is examined. In one-color resonant two-photon ionization experiments, fragmentation inthe ion state is observed for every cluster size above n = 1. For small clusters (n less than or equal to 4), a single neutral ammonia is evaporated in the ion state. This ceases at energies 1500-2500 cm(-1) above the ionization thresholds. Larger clusters, n greater than or equal to 5, are readilyionized at much lower energies than n less than or equal to 4. They yield(1-naphthol.(NH3)(n))(+), 1-naphthol.(NH3)(n)H+, Md(NH3)(n)H+ ion fragments. Several neutral ammonia molecules can be lost. These observations support predictions that n greater than or equal to 5 clusters undergo proton transfer in the ground state. (C) 1999 Elsevier Science B.V. All rights reserved.

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Documento generato il 30/11/20 alle ore 16:31:03