The 33S Nuclear Quadrupole Hyperfine Coupling in the Rotational Spectrum of Dimethyl Sulfide and Dimethyl Sulfide-d6
The 33S Nuclear Quadrupole Hyperfine Coupling in the Rotational Spectrum of Dimethyl Sulfide and Dimethyl Sulfide-d6
复制标题
二甲硫醚和二甲硫醚-d6旋转光谱中的33S核四极杆超精细耦合
DOI：
10.1006/jmsp.1995.1276
复制
发表时间：
1995
影响因子：
1.4
通讯作者：
H. Dreizler
中科院分区：
文献类型：
--
作者：
U. Kretschmer;H. Hartwig;H. Dreizler
摘要利用分子束傅立叶变换微波光谱研究了33 S天然丰度的33 S二甲基硫及其渗透同位素体在振动基态的旋转光谱。对33s核四极耦合进行了分析。此外，还得到了两个甲基的内旋参数。我们推导出（ch3） 2 33 S的旋转常数A = 17598.3002(14) MHz, B = 7622.2643(24) MHz, C = 5694.7067(24) MHz，四极耦合常数χ aa =−38.4052(25)MHz和χ bb−χ cc =−57.8733(47)MHz，对于（cd3） 2 33 S，我们得到A = 13434.9569(41) MHz, B = 5792.7537(39) MHz, C = 4507.9773(39) MHz, χ aa =−38.3580(95)MHz, χ bb−χ cc =−57.67419(26)MHz。
Abstract We investigated the rotational spectrum in the vibrational ground state of 33 S-dimethyl sulfide and its perdeuterated isotopomer in 33 S natural abundance by molecular beam Fourier transform microwave spectroscopy. The 33 S nuclear quadrupole coupling was analyzed. In addition, the internal rotation parameters of the two methyl groups were obtained. We derived the rotational constants A = 17598.3002(14) MHz, B = 7622.2643(24) MHz, C = 5694.7067(24) MHz, and the quadrupole coupling constants χ aa = −38.4052(25) MHz and χ bb − χ cc = −57.8733(47) MHz for (CH 3 ) 2 33 S. For (CD 3 ) 2 33 S we found A = 13434.9569(41) MHz, B = 5792.7537(39) MHz, C = 4507.9773(39) MHz, χ aa = −38.3580(95) MHz, and χ bb − χ cc = −57.67419(26) MHz.