Fourier transform microwave spectroscopy of SC13C2 and SC12C13C: establishing an accurate structure of SCC2 (~X2A1)

Burton, Mark

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https://hdl.handle.net/2142/91316 Copy

Description

Title

Fourier transform microwave spectroscopy of SC13C2 and SC12C13C: establishing an accurate structure of SCC2 (~X2A1)

Author(s)

Burton, Mark

Contributor(s)

• Ziurys, Lucy M.
• Min, Jie
• Halfen, DeWayne T.

Issue Date

2016-06-22

Keyword(s)

Small molecules

Date of Ingest

2017-01-26T21:39:23Z

Abstract

Pure rotational spectra of Sc$^{13}$C$_{2}$ and Sc$^{12}$C$^{13}$C (\~{X}$^{2}$A$_{1}$) have been obtained using Fourier Transform Microwave methods. These molecules were created from scandium vapor in combination with $^{13}$CH$_{4}$ and/or $^{12}$CH$_{4}$, diluted in argon, using a Discharge Assisted Laser Ablation Source (DALAS). Transitions in the frequency range of 14-30 GHz were observed for both species including hyperfine splitting due to the nuclear spin of Sc ($I$ = 7/2) and $^{13}$C ($I$ = 1/2). Rotational, spin-rotational, and hyperfine constants have been determined for Sc$^{13}$C$_{2}$ and Sc$^{12}$C$^{13}$C, as well as a refined structure for ScC$_{2}$. In agreement with theoretical calculations and previous Sc$^{12}$C$_{2}$ results, these data confirm a cyclic (or T-shaped) structure for this molecule. Scandium carbides have been shown to form endohedral-doped fullerenes, which have unique electrical and magnetic properties due to electron transfer between the metal and the carbon-cage. Spectroscopy of ScC$_{2}$ provides data on model systems for comparison with theory.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Genre of Resource

Conference Paper / Presentation

Language

En

Permalink

http://hdl.handle.net/2142/91316

Copyright and License Information

Copyright 2016 by the authors

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