The ethoxycarbonyl isothiocyanate has been investigated by using supersonic jet Fourier transform microwave spectroscopy. Two sets of rotational spectra belonging to conformers TCC (with the backbone of C−C−O−C, C−O−C=O, and O−C(=O)−NCS being trans, cis, and cis arranged, respectively) and GCC (gauche, cis, and cis arrangement of the C−C−O−C, C−O−C=O, and O−C(=O)−NCS) have been measured and assigned. The measurements of 13C, 15N and 34S mono-substituted species of the two conformers have also been performed. The comprehensive rotational spectroscopic investigations provide accurate values of rotational constants and 14N quadrupole coupling constants, which lead to structural determinations of the two conformers of ethoxycarbonyl isothiocyanate. For conformer TCC, the values of Pcc keep constant upon isotopic substitution, indicating that the heavy atoms of TCC are effectively located in the ab plane.
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December 2022
Research Article|
December 01 2022
Conformations and structures of ethoxycarbonyl isothiocyanate revealed by rotational spectroscopy
Special Collection:
Virtual issue on Molecular Spectroscopy (2022)
Yugao Xu;
Yugao Xu
School of Chemistry and Chemical Engineering, Chongqing University
, Chongqing 401331, China
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Wenqin Li;
Wenqin Li
School of Chemistry and Chemical Engineering, Chongqing University
, Chongqing 401331, China
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Jiaqi Zhang;
Jiaqi Zhang
School of Chemistry and Chemical Engineering, Chongqing University
, Chongqing 401331, China
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Gang Feng
Gang Feng
*
School of Chemistry and Chemical Engineering, Chongqing University
, Chongqing 401331, China
*Author to whom correspondence should be addressed. E-mail: [email protected]
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*Author to whom correspondence should be addressed. E-mail: [email protected]
Chin. J. Chem. Phys. 35, 875–882 (2022)
Article history
Received:
September 26 2021
Accepted:
October 17 2021
Citation
Yugao Xu, Wenqin Li, Jiaqi Zhang, Gang Feng; Conformations and structures of ethoxycarbonyl isothiocyanate revealed by rotational spectroscopy. Chin. J. Chem. Phys. 1 December 2022; 35 (6): 875–882. https://doi.org/10.1063/1674-0068/cjcp2109177
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