THE ELECTRIC-DIPOLE AND THE NUCLEAR-QUADRUPOLE MOMENT OF METHYL-BROMIDE IN THE GROUND VIBRATIONAL-STATE

被引：14

作者：

CAROCCI, S ^{[1
]}

MINGUZZI, P ^{[1
]}

TONELLI, M ^{[1
]}

DILIETO, A ^{[1
]}

机构：

[1] SCUOLA NORMALE SUPER PISA,I-56100 PISA,ITALY

来源：

JOURNAL OF MOLECULAR SPECTROSCOPY | 1993年 / 160卷 / 02期

关键词：

D O I：

10.1006/jmsp.1993.1183

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

A set of high-resolution Stark measurements at millimeter-wave frequencies is reported for CH379Br and CH381Br. These results are analyzed together with previous data available in the literature to find new sets of molecular (rotational, hyperfine, and dipole moments) constants for both isotopic species. A particular improvement is obtained in the evaluation of the dipole moments, whose values are μ(79) = 1.82171 (26) 0, μ(8l) = 1.82185 (26) D, and for the hyperfine-structure parameters, which are estimated by assuming the most recent model for centrifugal distortion (M. R. Aliev and J. T. Hougen, J. Mol. Spectrosc.106, 110-123 (1984)), obtaining eqQ790 = 577.1088 (57) MHz, χ79J = -0.63 (16) kHz, χ79K = 12.6 (16) kHz and eqQ810 = 482.1030 (94) MHz, χ81J = -0.57 (17) kHz, χ81K = 9.3 (22) kHz. © 1993 Academic Press, Inc.

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页码：359 / 370

页数：12

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