Measurements of Molecular g Values, Magnetic Susceptibility Anisotropics, and Quadrupole Moments for the Acetylene-HCl Complex

W. G. Read; J. A. Shea; E. J. Campbell; S. G. Kukolich

doi:10.1021/ja00359a010

Measurements of Molecular g Values, Magnetic Susceptibility Anisotropics, and Quadrupole Moments for the Acetylene-HCl Complex

W. G. Read, J. A. Shea, E. J. Campbell, S. G. Kukolich

Chemistry and Biochemistry

Research output: Contribution to journal › Article › peer-review

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Abstract

Rotational transitions for acetylene-HCl were measured in magnetic fields of 28 and 30 kG using a pulsed-nozzle, Fourier transform microwave spectrometer. Measured molecular g values are g_aa = 0.0519 (5), g_bb = -0.0006 (2), and g_cc-0.0025 (2). Susceptibility anisotropies are 2X_aa-X_bb-X_cc = 0.08 (4) X 10^-9 and 2X_bb-X_cc -X_aa = -1.14 (8) X 10^-9 MHz/G². Molecular quadrupole moments for the complex are Q_aa = -2.6 (3), Q_bb = 6.2 (3), and Q_cc = -3.7 (3) X 10^-26 esu cm². We find that the molecular g value for acetylene is positive, g = 0.044 (1). The molecular quadrupole moment of acetylene is found to be 8.0 (16) X 10^-26 esu cm² in good agreement with calculated values.

Original language	English (US)
Pages (from-to)	6423-6426
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	105
Issue number	21
DOIs	https://doi.org/10.1021/ja00359a010
State	Published - Oct 1983

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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title = "Measurements of Molecular g Values, Magnetic Susceptibility Anisotropics, and Quadrupole Moments for the Acetylene-HCl Complex",

abstract = "Rotational transitions for acetylene-HCl were measured in magnetic fields of 28 and 30 kG using a pulsed-nozzle, Fourier transform microwave spectrometer. Measured molecular g values are gaa = 0.0519 (5), gbb = -0.0006 (2), and gcc-0.0025 (2). Susceptibility anisotropies are 2Xaa-Xbb-Xcc = 0.08 (4) X 10-9 and 2Xbb-Xcc -Xaa = -1.14 (8) X 10-9 MHz/G2. Molecular quadrupole moments for the complex are Qaa = -2.6 (3), Qbb = 6.2 (3), and Qcc = -3.7 (3) X 10-26 esu cm2. We find that the molecular g value for acetylene is positive, g = 0.044 (1). The molecular quadrupole moment of acetylene is found to be 8.0 (16) X 10-26 esu cm2 in good agreement with calculated values.",

author = "Read, {W. G.} and Shea, {J. A.} and Campbell, {E. J.} and Kukolich, {S. G.}",

year = "1983",

month = oct,

doi = "10.1021/ja00359a010",

language = "English (US)",

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journal = "Journal of the American Chemical Society",

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T1 - Measurements of Molecular g Values, Magnetic Susceptibility Anisotropics, and Quadrupole Moments for the Acetylene-HCl Complex

AU - Read, W. G.

AU - Shea, J. A.

AU - Campbell, E. J.

AU - Kukolich, S. G.

PY - 1983/10

Y1 - 1983/10

N2 - Rotational transitions for acetylene-HCl were measured in magnetic fields of 28 and 30 kG using a pulsed-nozzle, Fourier transform microwave spectrometer. Measured molecular g values are gaa = 0.0519 (5), gbb = -0.0006 (2), and gcc-0.0025 (2). Susceptibility anisotropies are 2Xaa-Xbb-Xcc = 0.08 (4) X 10-9 and 2Xbb-Xcc -Xaa = -1.14 (8) X 10-9 MHz/G2. Molecular quadrupole moments for the complex are Qaa = -2.6 (3), Qbb = 6.2 (3), and Qcc = -3.7 (3) X 10-26 esu cm2. We find that the molecular g value for acetylene is positive, g = 0.044 (1). The molecular quadrupole moment of acetylene is found to be 8.0 (16) X 10-26 esu cm2 in good agreement with calculated values.

AB - Rotational transitions for acetylene-HCl were measured in magnetic fields of 28 and 30 kG using a pulsed-nozzle, Fourier transform microwave spectrometer. Measured molecular g values are gaa = 0.0519 (5), gbb = -0.0006 (2), and gcc-0.0025 (2). Susceptibility anisotropies are 2Xaa-Xbb-Xcc = 0.08 (4) X 10-9 and 2Xbb-Xcc -Xaa = -1.14 (8) X 10-9 MHz/G2. Molecular quadrupole moments for the complex are Qaa = -2.6 (3), Qbb = 6.2 (3), and Qcc = -3.7 (3) X 10-26 esu cm2. We find that the molecular g value for acetylene is positive, g = 0.044 (1). The molecular quadrupole moment of acetylene is found to be 8.0 (16) X 10-26 esu cm2 in good agreement with calculated values.

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Measurements of Molecular g Values, Magnetic Susceptibility Anisotropics, and Quadrupole Moments for the Acetylene-HCl Complex

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