Electric deflection of imidazole dimers and trimers in helium nanodroplets: Dipole moments, structure, and fragmentation

Deuterated imidazole (IM) molecules, dimers, and trimers formed in liquid helium nanodroplets are studied by the electrostatic beam deflection method. Monitoring the deflection profile of (IM)D+ provides a direct way to establish that it is the primary product of the ionization-induced fragmentation...

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Veröffentlicht in:	The Journal of chemical physics 2020-08, Vol.153 (8), p.081101-081101
Hauptverfasser:	Kamerin, Benjamin S., Niman, John W., Kresin, Vitaly V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Deflection Deuteration Dimers Dipole moments Electric dipoles Fragmentation Helium Imidazole Liquid helium Molecular structure Trimers
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description	Deuterated imidazole (IM) molecules, dimers, and trimers formed in liquid helium nanodroplets are studied by the electrostatic beam deflection method. Monitoring the deflection profile of (IM)D+ provides a direct way to establish that it is the primary product of the ionization-induced fragmentation both of (IM)2 and (IM)3. The magnitude of the deflection determines the electric dipole moments of the parent clusters: nearly 9 D for the dimer and 14.5 D for the trimer. These very large dipole values confirm theoretical predictions and derive from a polar chain bonding arrangement of the heterocyclic imidazole molecules.
doi_str_mv	10.1063/5.0020844
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source	AIP Journals Complete; Alma/SFX Local Collection
subjects	Deflection Deuteration Dimers Dipole moments Electric dipoles Fragmentation Helium Imidazole Liquid helium Molecular structure Trimers
title	Electric deflection of imidazole dimers and trimers in helium nanodroplets: Dipole moments, structure, and fragmentation
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