S-33 Nuclear quadrupole coupling in the microwave spectrum of methylthiocyanate

被引：6

作者：

Hansen, N ^{[1
]}

Hartwig, H ^{[1
]}

Kretschmer, U ^{[1
]}

Mader, H ^{[1
]}

机构：

[1] CHRISTIAN ALBRECHTS UNIV KIEL,INST PHYS CHEM,D-24098 KIEL,GERMANY

来源：

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1996年 / 100卷 / 07期

关键词：

molecular beams; spectroscopy; microwaves;

D O I：

10.1002/bbpc.19961000714

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The rotational spectrum of S-33-methylthiocyanate in the vibrational ground state was observed in natural abundance by molecular beam Fourier transform microwave (MB-FTMW) spectroscopy. We were able to determine the relational and centrifugal distortion constants, the methyl internal relation parameters, and the N-14 and S-33 quadrupole coupling constants. The rotational constants were found to be A = 15 598.104(83)MHz, B = 4144.5631(3) MHz and C = 3338.1246(2) MHz. For the torsional ground state (A-species) the S-33 nuclear quad rupole coupling constants were obtained chi(aa) = -40.513(4)MHz, chi(bb) = -7.166(6)MHz and chi(cc) = 47.679 (7) MHz. The corresponding constants for the E-species lines agree with these values within the given error limits. Additionally the rotational and centrifugal distortion constants, the methyl internal rotation, and the N-14 quadrupole coupling constants for the S-32- and S-34-isotopomer could be improved.

引用

页码：1182 / 1190

页数：9

共 25 条

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