Reactions of hydrogen halides with clusters of ammonia molecules

Journal Article · Thu Nov 02 00:00:00 EST 1989 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100359a034· OSTI ID:7021430

Breen, J J; Kilgore, K; Wei, S; Tzeng, W B; Keesee, R G; Castleman, Jr, A W ^[1]

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1. Pennsylvania State Univ., University Park (USA)

Reactions between an ammonia cluster beam and an effusive source of hydrogen halide molecules are shown to form mixed clusters containing as many as four hydrogen halide molecules. Multiphoton ionization of the product clusters using the third harmonic of a Q-switched Nd:YAG laser leads mainly to species of the comparison H{sup +}(NH{sub 3}){sub n}(NH){sub m}, where X = Cl or I and n is greater than m. In addition, for the case where X = I the species NH{sub 3}{center dot}HX{sup +} and H{sup +}(NH{sub 4})(HX) are positively observed. Evidently they arise due to the fragmentation of clusters containing more than one HI molecule; H{sup +}(NH{sub 3}){sub 2}HI is the smallest mixed cluster observed to be formed under single collision conditions. These results, along with information contained in the mixed cluster distributions, suggest a replacement reaction mechanism for the formation of the mixed clusters. Evidence is obtained which suggests that a solvated ion pair arises in HI-ammonia clusters containing about 10 NH{sub 3} molecules.

• OSTI ID: 7021430
• Journal Information: Journal of Physical Chemistry; (USA), Vol. 93:22; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
10 SYNTHETIC FUELS
AMMONIA
CHEMICAL REACTIONS
BROMINE
CHLORINE
DATA ANALYSIS
EXPERIMENTAL DATA
HYDROGEN COMPOUNDS
IODINE
MEASURING INSTRUMENTS
MEASURING METHODS
DATA
ELEMENTS
HALOGENS
HYDRIDES
INFORMATION
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
NUMERICAL DATA
400201* - Chemical & Physicochemical Properties
100300 - Synthetic Fuels- Properties & Composition- (1990-)