Linnartz H, Motylewski T, Vaizert O, Maier JP, Apponi AJ, McCarthy MC, Gottlieb CA, Thaddeus P
Institute for Physical Chemistry, University of Basel, Klingelbergstrasse 80, Basel, CH 4056, Switzerland
J Mol Spectrosc. 1999 Sep;197(1):1-11. doi: 10.1006/jmsp.1999.7885.
Rotational transitions in the X(2)Pi ground state of C(6)H and C(6)D have been measured by Fourier transform microwave and millimeter-wave absorption spectroscopy. More than 150 rotational lines in the ground (2)Pi(3/2) and (2)Pi(1/2) ladders have been observed, allowing an accurate determination of the rotational, fine structure, lambda-doubling, and hyperfine coupling constants using a standard effective Hamiltonian for a molecule in an isolated (2)Pi electronic state. The molecular ground state constants are used to characterize the rotationally resolved origin band of the (2)Pi <-- X(2)Pi electronic transition observed by cavity ring-down laser absorption spectroscopy in a pulsed supersonic slit-jet discharge source. From these data, spectroscopic constants for the excited electronic state are determined. Copyright 1999 Academic Press.
通过傅里叶变换微波和毫米波吸收光谱法测量了C(6)H和C(6)D的X(2)Pi基态的转动跃迁。在基态(2)Pi(3/2)和(2)Pi(1/2)能级序列中观测到了150多条转动谱线，利用适用于孤立(2)Pi电子态分子的标准有效哈密顿量，可精确测定转动、精细结构、λ-双重分裂和超精细耦合常数。分子基态常数用于表征在脉冲超声速狭缝射流放电源中通过腔衰荡激光吸收光谱法观测到的(2)Pi←X(2)Pi电子跃迁的转动分辨的起源带。根据这些数据，确定了激发电子态的光谱常数。版权所有1999年，学术出版社。
