The rotational spectrum of the urea···isocyanic acid complex
Mullaney, John C.
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https://hdl.handle.net/2142/91217
Description
Title
The rotational spectrum of the urea···isocyanic acid complex
Author(s)
Mullaney, John C.
Contributor(s)
Golding, Bernard T.
Lewis-Borrell, Luke
Legon, Anthony
Walker, Nick
Medcraft, Chris
Issue Date
2016-06-22
Keyword(s)
Chirped pulse
Abstract
A dimer of urea and isocyanic acid has been generated and observed in the gas phase. The complex was generated by laser vaporisation of a rod target containing urea and copper in a 1:1 ratio, then cooled in a supersonic expansion. Six isotopologues of the complex have been characterised using a chirped pulse Fourier-transform microwave spectrometer in the frequency range 6.5-18.5 GHz. The spectra have been fitted to the Hamiltonian for an asymmetric rotor using PGOPHER. Data obtained from the $^{13}$C and $^{15}$N isotopologues confirms that all nitrogen atoms are close to the a intertial axis while the carbon atoms are not. A tentative structure will be presented.
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