Abstract:The rotational spectrum of 2,5-dichlorothiophene (DCT) was measured for the first time using Fourier transform microwave spectroscopy from 5.5−19 GHz. Dense hyperfine splitting patterns due to the two quadrupolar chlorine nuclei (I = 3/2) were resolved and assigned for the 35 Cl-35 Cl, 37 Cl-35 Cl, and 37 Cl-37 Cl isotopologues and for the two 13 C and one 34 S analogues with two 35 Cl atoms, allowing derivation of their respective nuclear quadrupole coupling tensors. The rotational constants obtained from fit… Show more
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