Rotational spectroscopy of singly ${}^{13}$C substituted isotopomers of propyne and determination of a semi-empirical equilibrium structure

Holger S. P. Müller, Sven Thorwirth, Frank Lewen

Submillimeter spectra of three isotopomers of propyne containing one ${}^{13}$C atom were recorded in natural isotopic composition in the region of 426 GHz to 785 GHz. Additional mea…