Microwave spectroscopy of HCOO 13 CH 3 in the second methyl torsional excited state
Microwave spectroscopy of HCOO 13 CH 3 in the second methyl torsional excited state
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第二甲基扭转激发态HCOO 13 CH 3 的微波光谱
DOI：
10.1016/j.jms.2017.08.006
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发表时间：
2018
影响因子：
1.4
通讯作者：
Ohashi Nobukimi
中科院分区：
文献类型：
--
作者：
Kobayashi Kaori;Kuwahara Takuro;Tachi Haruka;Urata Yuki;Tsunekawa Shozo;Hayashi Naoto;Higuchi Hiroyuki;Fujitake Masaharu;Ohashi Nobukimi
报道了HCOO_（13）CH_3分子第二甲基扭振激发态微波光谱的新实验结果和分析。将伪主轴方法（pseudo-PAM）成功地应用于正甲酸甲酯的第二扭转激发态，并再次应用于该同位素体。我们成功地指定了536个A-物种跃迁，直到J = 33和Ka = 15，417个E-物种跃迁，直到J = 32和Ka = 14。通过使用由旋转、离心畸变和内部旋转常数组成的伪PAM哈密顿量，使用30个参数来进行最小二乘分析。
The new experimental results and analysis of the microwave spectra of HCOO13CH3in the second methyl torsional excited state are reported. Pseudo-principal axis method (pseudo-PAM) was successfully applied to the normal methyl formate in the second torsional excited state and again applied to this isotopologue. We succeeded to assign 536 A-species transitions up toJ= 33 andKa= 15 and 417 E-species transitions up toJ= 32 andKa= 14. Thirty parameters were used to do the least-squares-analysis by using the pseudo-PAM Hamiltonian consisting of rotational, centrifugal distortion, and internal-rotational constants.