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Titolo:
Infrared spectrum of the H3N-HCl complex in solid Ne, Ne/Ar, Ar, and Kr. Matrix effects on a strong hydrogen-bonded complex
Autore:
Andrews, L; Wang, XF; Mielke, Z;
Indirizzi:
Univ Virginia, Dept Chem, Charlottesville, VA 22904 USA Univ Virginia Charlottesville VA USA 22904 Charlottesville, VA 22904 USA Univ Wroclaw, Dept Chem, PL-50383 Wroclaw, Poland Univ Wroclaw Wroclaw Poland PL-50383 Dept Chem, PL-50383 Wroclaw, Poland
Titolo Testata:
JOURNAL OF PHYSICAL CHEMISTRY A
fascicolo: 25, volume: 105, anno: 2001,
pagine: 6054 - 6064
SICI:
1089-5639(20010628)105:25<6054:ISOTHC>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
ISOLATION VIBRATIONAL SPECTROSCOPY; GAS-PHASE; PROTON-TRANSFER; ROTATIONAL SPECTRUM; HALIDE-COMPLEXES; AMMONIA; CHLORIDE; HCL; POSITION; DIMER;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
58
Recensione:
Indirizzi per estratti:
Indirizzo: Andrews, L Univ Virginia, Dept Chem, Mccormick Rd, Charlottesville, VA 22904 USA Univ Virginia Mccormick Rd Charlottesville VA USA 22904 904 USA
Citazione:
L. Andrews et al., "Infrared spectrum of the H3N-HCl complex in solid Ne, Ne/Ar, Ar, and Kr. Matrix effects on a strong hydrogen-bonded complex", J PHYS CH A, 105(25), 2001, pp. 6054-6064

Abstract

Ammonia and hydrogen chloride vapors from thermal decomposition of NH4Cl co-deposited with excess neon at 4-5 K formed the H3N-HCl complex. Strong, broad 2084 cm(-1) and strong, sharp 1060.2, cm(-1) absorptions are assigned to the H-CI stretching and symmetric NH, bending modes and weaker 2017.4 and 708.9 cm(-1) bands to the overtone of the NH3 mode and the H-CI librational fundamental of the 1:1 complex. Complementary experiments were done withneon/argon mixtures, argon, and krypton to investigate the 1:1 complex in a range of matrix environments. Vibrational assignments are supported by (NH4Cl)-N-15. ND4Cl. and (ND4Cl)-N-15 isotopic substitution. The neon matrix spectrum suggests a strong hydrogen bond, slightly stronger than in the gas-phase complex, but not as strong as found in the argon and krypton matrix hosts owing to increased solvation by the more polarizable matrix atoms.

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Documento generato il 25/11/20 alle ore 18:37:29