Microwave structure measurements on the cyclopropane-HCN complex

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Abstract

Microwave rotational transitions for the cyclopropane-HCN complex were observed using the Flygare-Balle pulsed beam Fourier transform spectrometer. The 111→212, 101→202, 1 10→211, 212→313, 2 02→303, 211→312, 3 13→414, 303→404, 3 12→413, 414→515, 4 04→505, and 413→514 transitions were observed. The rotational constants obtained are A=20 243±1344 MHz, B=1384.209±0.001 MHz, and C=1327.901±0.001 MHz. The distortion constants are DJ=1.53±0.03 kHz and D JK=50.9±p1.1 kHz. The nitrogen quadrupole coupling strength is eQqaa=-4.38±0.01 MHz with eQqbb-eQq cc=0.002±0.003 MHz. The cyclopropane carbon atoms and HCN lie in a plane. The most reasonable bond distance is obtained with the HCN hydrogen atom bonding to the midpoint between two of the cyclopropane carbon atoms. The separation of the centers of mass of HCN and cyclopropane is R cm=4.472±0.002 Å. The HCN carbon atom is R CC-C=3.476±0.002 Å from the cyclopropane carbon-carbon bond. The stretching force constant is ks=0.062 mdyn/Å and the approximate bonding energy is 860 cm-1.

Original languageEnglish (US)
Pages (from-to)4832-4835
Number of pages4
JournalThe Journal of Chemical Physics
Volume78
Issue number8
StatePublished - 1983

Fingerprint

cyclopropane
Carbon
Microwaves
microwaves
carbon
Atoms
atoms
Stretching
center of mass
Spectrometers
Hydrogen
hydrogen atoms
Fourier transforms
Nitrogen
quadrupoles
spectrometers
nitrogen

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Microwave structure measurements on the cyclopropane-HCN complex. / Kukolich, Stephen G.

In: The Journal of Chemical Physics, Vol. 78, No. 8, 1983, p. 4832-4835.

Research output: Contribution to journalArticle

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abstract = "Microwave rotational transitions for the cyclopropane-HCN complex were observed using the Flygare-Balle pulsed beam Fourier transform spectrometer. The 111→212, 101→202, 1 10→211, 212→313, 2 02→303, 211→312, 3 13→414, 303→404, 3 12→413, 414→515, 4 04→505, and 413→514 transitions were observed. The rotational constants obtained are A=20 243±1344 MHz, B=1384.209±0.001 MHz, and C=1327.901±0.001 MHz. The distortion constants are DJ=1.53±0.03 kHz and D JK=50.9±p1.1 kHz. The nitrogen quadrupole coupling strength is eQqaa=-4.38±0.01 MHz with eQqbb-eQq cc=0.002±0.003 MHz. The cyclopropane carbon atoms and HCN lie in a plane. The most reasonable bond distance is obtained with the HCN hydrogen atom bonding to the midpoint between two of the cyclopropane carbon atoms. The separation of the centers of mass of HCN and cyclopropane is R cm=4.472±0.002 {\AA}. The HCN carbon atom is R CC-C=3.476±0.002 {\AA} from the cyclopropane carbon-carbon bond. The stretching force constant is ks=0.062 mdyn/{\AA} and the approximate bonding energy is 860 cm-1.",
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