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Direct IR Absorption Spectra of Propargyl Cation Isolated in Solid Argon.

ABSTRACT: The direct infrared (IR) absorption spectra of propargyl cations were recorded. These cations were generated via the electron bombardment of a propyne/Ar matrix sample during matrix deposition. Secondary photolysis with selected ultraviolet (UV) light was used for grouping the observed bands of various products. The band assignment of the propargyl cation in solid Ar was performed according by referring to the previous infrared photodissociation (IRPD) and velocity-map imaging photoelectron (VMI-PE) data, and via theoretical predictions of the anharmonic vibrational wavenumbers, band intensities, and deuterium-substituted isotopic ratios. Almost all the IR active bands with an observable intensity were recorded and the ?₁₁ mode was reported for the first time.

SUBMITTER: Chin CH

PROVIDER: S-EPMC6158168 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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Direct IR Absorption Spectra of Propargyl Cation Isolated in Solid Argon.

Chin Chih-Hao CH Lin Meng-Yeh MY Huang Tzu-Ping TP Wu Pei-Zhen PZ Wu Yu-Jong YJ

Scientific reports 20180926 1

The direct infrared (IR) absorption spectra of propargyl cations were recorded. These cations were generated via the electron bombardment of a propyne/Ar matrix sample during matrix deposition. Secondary photolysis with selected ultraviolet (UV) light was used for grouping the observed bands of various products. The band assignment of the propargyl cation in solid Ar was performed according by referring to the previous infrared photodissociation (IRPD) and velocity-map imaging photoelectron (VMI ...[more]

PMID: 30258064

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