Spectra and structure of organogermanes. XXIV. Microwave spectra, quadrupole coupling constants, and structure of methylgermyl bromide

J. R. Durig, J. F. Sullivan, Abu Bakar Mohamad, Stephen Cradock, Y. S. Li

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The microwave spectra from 26.5 to 39.0 GHz of eighteen isotopic species of methylgermyl bromide, 12CH3GeH2Br, 12CH3GeD2Br, and 13CH 3GeH2Br for three of the naturally occurring isotopes of germane, 70Ge, 72Ge, and 74Ge, as well as the two of bromine, 79Br and 81Br, have been measured and assigned. From these data, substitution structural parameters were determined except for the methyl group. The determined parameters are: r(Ge-Br)=2. 308±0.002 Å, r(Ge-C)=1.933±0.002 Å, r(Ge-H)=1.520±0.001 Å, r(C-Hs)=1.100±0.012 Å, r(C-Ha)=1.097±0.030 Å, spherical angle signCGeBr=107.0±0.2°, spherical angle signHGeH=111.5±0.1°, spherical angle signHGeC=112.2±0.1°, spherical angle signGeCH s=110.3±4.7°, and spherical angle signGeCH a=111.9±1.7°. From a diagnostic least-squares adjustment to fit 36 rotational constants, r0 structural parameters were also obtained. Quadrupolar coupling constants have been obtained. These results are compared to similar quantities in some related molecules.

Original languageEnglish
Pages (from-to)5796-5809
Number of pages14
JournalThe Journal of Chemical Physics
Volume84
Issue number1
Publication statusPublished - 1985
Externally publishedYes

Fingerprint

Bromine
microwave spectra
Bromides
Isotopes
bromides
Substitution reactions
quadrupoles
Microwaves
Molecules
bromine
isotopes
adjusting
substitutes
molecules

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Spectra and structure of organogermanes. XXIV. Microwave spectra, quadrupole coupling constants, and structure of methylgermyl bromide. / Durig, J. R.; Sullivan, J. F.; Mohamad, Abu Bakar; Cradock, Stephen; Li, Y. S.

In: The Journal of Chemical Physics, Vol. 84, No. 1, 1985, p. 5796-5809.

Research output: Contribution to journalArticle

Durig, J. R. ; Sullivan, J. F. ; Mohamad, Abu Bakar ; Cradock, Stephen ; Li, Y. S. / Spectra and structure of organogermanes. XXIV. Microwave spectra, quadrupole coupling constants, and structure of methylgermyl bromide. In: The Journal of Chemical Physics. 1985 ; Vol. 84, No. 1. pp. 5796-5809.
@article{cd8ffe55be0944e1935294de9cdcfd68,
title = "Spectra and structure of organogermanes. XXIV. Microwave spectra, quadrupole coupling constants, and structure of methylgermyl bromide",
abstract = "The microwave spectra from 26.5 to 39.0 GHz of eighteen isotopic species of methylgermyl bromide, 12CH3GeH2Br, 12CH3GeD2Br, and 13CH 3GeH2Br for three of the naturally occurring isotopes of germane, 70Ge, 72Ge, and 74Ge, as well as the two of bromine, 79Br and 81Br, have been measured and assigned. From these data, substitution structural parameters were determined except for the methyl group. The determined parameters are: r(Ge-Br)=2. 308±0.002 {\AA}, r(Ge-C)=1.933±0.002 {\AA}, r(Ge-H)=1.520±0.001 {\AA}, r(C-Hs)=1.100±0.012 {\AA}, r(C-Ha)=1.097±0.030 {\AA}, spherical angle signCGeBr=107.0±0.2°, spherical angle signHGeH=111.5±0.1°, spherical angle signHGeC=112.2±0.1°, spherical angle signGeCH s=110.3±4.7°, and spherical angle signGeCH a=111.9±1.7°. From a diagnostic least-squares adjustment to fit 36 rotational constants, r0 structural parameters were also obtained. Quadrupolar coupling constants have been obtained. These results are compared to similar quantities in some related molecules.",
author = "Durig, {J. R.} and Sullivan, {J. F.} and Mohamad, {Abu Bakar} and Stephen Cradock and Li, {Y. S.}",
year = "1985",
language = "English",
volume = "84",
pages = "5796--5809",
journal = "Journal of Chemical Physics",
issn = "0021-9606",
publisher = "American Institute of Physics Publising LLC",
number = "1",

}

TY - JOUR

T1 - Spectra and structure of organogermanes. XXIV. Microwave spectra, quadrupole coupling constants, and structure of methylgermyl bromide

AU - Durig, J. R.

AU - Sullivan, J. F.

AU - Mohamad, Abu Bakar

AU - Cradock, Stephen

AU - Li, Y. S.

PY - 1985

Y1 - 1985

N2 - The microwave spectra from 26.5 to 39.0 GHz of eighteen isotopic species of methylgermyl bromide, 12CH3GeH2Br, 12CH3GeD2Br, and 13CH 3GeH2Br for three of the naturally occurring isotopes of germane, 70Ge, 72Ge, and 74Ge, as well as the two of bromine, 79Br and 81Br, have been measured and assigned. From these data, substitution structural parameters were determined except for the methyl group. The determined parameters are: r(Ge-Br)=2. 308±0.002 Å, r(Ge-C)=1.933±0.002 Å, r(Ge-H)=1.520±0.001 Å, r(C-Hs)=1.100±0.012 Å, r(C-Ha)=1.097±0.030 Å, spherical angle signCGeBr=107.0±0.2°, spherical angle signHGeH=111.5±0.1°, spherical angle signHGeC=112.2±0.1°, spherical angle signGeCH s=110.3±4.7°, and spherical angle signGeCH a=111.9±1.7°. From a diagnostic least-squares adjustment to fit 36 rotational constants, r0 structural parameters were also obtained. Quadrupolar coupling constants have been obtained. These results are compared to similar quantities in some related molecules.

AB - The microwave spectra from 26.5 to 39.0 GHz of eighteen isotopic species of methylgermyl bromide, 12CH3GeH2Br, 12CH3GeD2Br, and 13CH 3GeH2Br for three of the naturally occurring isotopes of germane, 70Ge, 72Ge, and 74Ge, as well as the two of bromine, 79Br and 81Br, have been measured and assigned. From these data, substitution structural parameters were determined except for the methyl group. The determined parameters are: r(Ge-Br)=2. 308±0.002 Å, r(Ge-C)=1.933±0.002 Å, r(Ge-H)=1.520±0.001 Å, r(C-Hs)=1.100±0.012 Å, r(C-Ha)=1.097±0.030 Å, spherical angle signCGeBr=107.0±0.2°, spherical angle signHGeH=111.5±0.1°, spherical angle signHGeC=112.2±0.1°, spherical angle signGeCH s=110.3±4.7°, and spherical angle signGeCH a=111.9±1.7°. From a diagnostic least-squares adjustment to fit 36 rotational constants, r0 structural parameters were also obtained. Quadrupolar coupling constants have been obtained. These results are compared to similar quantities in some related molecules.

UR - http://www.scopus.com/inward/record.url?scp=36549104502&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=36549104502&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:36549104502

VL - 84

SP - 5796

EP - 5809

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 1

ER -