New Investigation of Millimeter-Wave Rotational Spectrum of CCl3CN in Ground, v7= 1 and v8= 1 States

摘要

The millimeter-wave rotational spectra of the ground and excited vibrational states v7=1 and v8=1 of the symmetric top molecule, CCl3CN, have been analyzed again. The B0= 1666.80894(13) MHz, DJ= 0.135023 (23) kHz, DJK= 0.60596 (45) kHz, HJ= -0.0192 (10) mHz, HJK= 1.188 (34) mHz and HKJ= -1.60 (21) mHz have been determined for ground state. The 𝓁 = ±1 series have been assigned and the rotational parameters including B7=1667.96659(25) MHz, (q+t)7=1.58855(94) MHz for v7=1 and B8=1667.08204 (31) MHz, (q+t)8= 1.6141(36) MHz for v8= 1 states were determined accurately.