Microwave Spectrum of CF2

Powell, F. X.; Lide, David R.

doi:10.1063/1.1727662

Cited by 89 publications

(15 citation statements)

References 6 publications

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“…CF 2 is one of the most stable gas-phase carbenes, which has facilitated numerous experimental studies; in particular, its rotational, [2][3][4][5] high-resolution infrared, 6,7 and ultraviolet 8 spectra have been analyzed in great detail. The photoelectron spectroscopy of the anion has been also reported.…”

Section: Introductionmentioning

confidence: 99%

Anharmonic force field, structure, and thermochemistry of CF2 and CCl2Electronic supplementary information (ESI) available: Force constants and thermochemical properties of CF2 and CCl2. See http://www.rsc.org/suppdata/cp/b2/b202865d/

Demaison

Margulès

Martin

et al. 2002

Phys. Chem. Chem. Phys.

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The anharmonic force field up to quartic terms has been calculated for both CF 2 and CCl 2 at the CCSD(T) level of theory with large basis sets. The calculated spectroscopic parameters are in excellent agreement with the available experimental data. The equilibrium structure of CCl 2 has been calculated at the CCSD(T) level of theory with the cc-pV5Z basis set (including core correlation corrections). It is in excellent agreement with the semi-experimental equilibrium structure derived from the experimental rotational constants and the ab initio rovibrational interaction parameters. The heats of formation of CF 2 and CCl 2 have been calculated using the W2 method and are À193.43 and 227.96 kJ mol À1 , respectively.

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Section: Introductionmentioning

confidence: 99%

Anharmonic force field, structure, and thermochemistry of CF2 and CCl2Electronic supplementary information (ESI) available: Force constants and thermochemical properties of CF2 and CCl2. See http://www.rsc.org/suppdata/cp/b2/b202865d/

Demaison

Margulès

Martin

et al. 2002

Phys. Chem. Chem. Phys.

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“…Powell and Lide (136) have observed the microwave spectrum of CF2 generated by a weak radio frequency discharge in C2F3C1, CF4 and (CF3) 2 CO. They have backed up their assignments with a partial resolution of Stailk effects on several transitions.…”

mentioning

confidence: 99%

The thermal decomposition of perfluorocyclopropane

Atkinson¹,

McKeagan²

1966

Chem. Commun. (London)

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“…Although the OH spectrum had been previously observed, the stronger signals obtained with the NBS apparatus allowed the first precise measurement of the electric dipole moment. Difluoromethylene (CF 2 ) [ 53 , 54 ]. A detailed analysis of the spectrum, including centrifugal distortion effects, led to definitive values of the structure, dipole moment, and vibrational force field.…”

Section: Specific Studies From 1954 To the Early 1970smentioning

confidence: 99%

“…Difluoromethylene (CF 2 ) [ 53 , 54 ]. A detailed analysis of the spectrum, including centrifugal distortion effects, led to definitive values of the structure, dipole moment, and vibrational force field.…”

Section: Specific Studies From 1954 To the Early 1970smentioning

confidence: 99%

Evolution of Microwave Spectroscopy at the National Bureau of Standards (NBS) and the National Institute of Standards and Technology (NIST)

Lovas¹,

Lide²,

Suenram³

et al. 2012

J. Res. Natl. Inst. Stand. Technol.

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This paper describes the beginning and evolution of microwave rotational spectroscopic research starting in 1954 at the National Bureau of Standards (NBS), located at that time in Washington, DC, through the present at NIST in Gaithersburg, MD. David Lide was hired in 1954 to start this research employing Stark modulated waveguide septum cells. When Donald R. Johnson joined the lab in 1968, he developed parallel plate cells coupled with rf and DC discharge methods to study free radicals and transient species. In the mid 1980s Lovas and Suenram constructed a pulsed molecular beam Fourier Transform microwave (FTMW) spectrometer to study hydrogen bonded and van der Waals dimers and trimers. This article describes the types of molecules studied and the type molecular properties derived from these measurements as well as some of the instruments developed for these studies. The two major areas of application described are atmospheric chemistry and molecular radio astronomy.

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Microwave Spectrum of CF2

Cited by 89 publications

References 6 publications

Anharmonic force field, structure, and thermochemistry of CF2 and CCl2Electronic supplementary information (ESI) available: Force constants and thermochemical properties of CF2 and CCl2. See http://www.rsc.org/suppdata/cp/b2/b202865d/

Anharmonic force field, structure, and thermochemistry of CF2 and CCl2Electronic supplementary information (ESI) available: Force constants and thermochemical properties of CF2 and CCl2. See http://www.rsc.org/suppdata/cp/b2/b202865d/

The thermal decomposition of perfluorocyclopropane

Evolution of Microwave Spectroscopy at the National Bureau of Standards (NBS) and the National Institute of Standards and Technology (NIST)

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