DETERMINATION OF TORSIONAL BARRIERS OF ITACONIC ACID AND N-ACETYLETHANOLAMINE USING CHIRPED-PULSED FTMW SPECTROSCOPY

Bird, Ryan G.

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https://hdl.handle.net/2142/79316 Copy

Description

Title

DETERMINATION OF TORSIONAL BARRIERS OF ITACONIC ACID AND N-ACETYLETHANOLAMINE USING CHIRPED-PULSED FTMW SPECTROSCOPY

Author(s)

Bird, Ryan G.

Contributor(s)

• Pratt, David
• McMahon, Timothy J.
• Bailey, Josiah R.

Issue Date

23-Jun-15

Keyword(s)

Large amplitude motions, internal rotation

Abstract

The ground state rotational spectrum of itaconic acid (methylenesuccinic acid) and N-acetylethanolamine (AEA) have been collected and analyzed over the frequency range of 7-17.5 GHz. Both molecules displayed an unexpected tunneling splitting pattern caused by a V$_{2}$ and V$_{3}$ barriers, respectively. AEA�s methyl rotor is directly connected to a carbonyl and is expected to have too high of a barrier to internal motion. Itaconic acid contains no methyl groups or any symmetry, yet a torsional splitting was observed. The origin of this motion as well their barrier heights and lowest energy conformations will be discussed.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

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http://hdl.handle.net/2142/79316

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