Threshold ionization of La(C5H8) formed by La-mediated dehydrogenation of 1-pentene

Cao, Wenjin

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https://hdl.handle.net/2142/91270 Copy

Description

Title

Threshold ionization of La(C5H8) formed by La-mediated dehydrogenation of 1-pentene

Author(s)

Cao, Wenjin

Contributor(s)

• Yang, Dong-Sheng
• Zhang, Yuchen

Issue Date

2016-06-23

Keyword(s)

Metal containing

Date of Ingest

2017-01-26T21:37:00Z

Abstract

La(\chem{C_5H_8}) was formed by La reaction with 1-pentene (CH$_{2}$=CH-CH$_{2}$-CH$_{3}$) in a laser-vaporization supersonic molecular beam source and characterized with mass-analyzed threshold ionization (MATI) spectroscopy. The MATI spectrum displays an origin band at 38988 (5) \wn and three vibrational intervals of 130, 294, and 415 \wn. The La(\chem{C_5H_8}) complex is identified as a five-membered metallacycle in C$_{1}$ point group, with the doublet and singlet being the lowest energy states of the neutral and cation, respectively. The energy at 38998 \wn corresponds to the adiabatic ionization energy of the complex, and the three vibration intervals in the order of the frequency increase are assigned to the terminal \chem{CH_3} torsion, asymmetric La-ligand stretch, and symmetric La-ligand stretch excitation of the ion. The La + 1-penetene reaction will also be compared with La reactions with other five-carbon hydrocarbon molecules, such as isoprene, 1-pentyne, and 1,4-pentadiene.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Genre of Resource

Conference Paper / Presentation

Language

En

Permalink

http://hdl.handle.net/2142/91270

Copyright and License Information

Copyright 2016 by the authors

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