ESR of the N2F4–NF2 Equilibrium

Doorenbos, H; Loy, B. R.

doi:10.1063/1.1701467

Cited by 11 publications

(4 citation statements)

References 2 publications

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“…Electron spin resonance spectrum of the NF 2 radical isolated in a neon matrix at 4°K Although several electron spin resonance studies of the NF 2 radical have been reported [1][2][3][4][5], no unambiguous assignment of the spectrum has been made which includes the anisotropic parts of the hyperfine interactions with both nitrogen and fluorine nuclei. Since the recent discovery [6] of preferential…”

Section: Molecular Physics: An International Journal At the Interfacementioning

confidence: 99%

Electron spin resonance spectrum of the NF₂radical isolated in a neon matrix at 4°K

Kasai¹,

Whipple²

1965

Molecular Physics

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Section: Molecular Physics: An International Journal At the Interfacementioning

confidence: 99%

Electron spin resonance spectrum of the NF₂radical isolated in a neon matrix at 4°K

Kasai¹,

Whipple²

1965

Molecular Physics

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“…The absorptivities in the temperature range 500-800 K (see Figure 1) were fitted to a straight line by the method of least squares. The expression resulting from this analysis is a(L mol"1 cm"1) = 638.5 -0.2671 (9) and this is represented by the solid line in Figure 1. NF2 absorptivities in the temperature range 375-462 K were then obtained by linear extrapolation of eq 9 (dashed line in Figure 1).…”

Section: Resultsmentioning

confidence: 99%

Thermodynamic properties of tetrafluorohydrazine and the difluoroamino radical

Evans¹,

Tschuikow‐Roux²

1978

J. Phys. Chem.

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The equilibrium dissociation of tetrafluorohydrazine via the reaction NZFd(g) * 2NFz(g) has been studied behind incident shock waves over the temperature range 375-1500 K. At temperatures above 500 K, the N2F4 is completely dissociated and absorption measurements in this region yielded the absorptivity of NF2 as a function of temperature. Absorption measurements in the temperature range 375-462 K yielded equilibrium constants for the above reaction. On the basis of second and third law analyses of the data, a value of 20.9 f 0.4 kcal mol-' for the heat of dissociation of NzF4 was obtained. In addition, previously reported measurements of the equilibrium constants for the reaction NF3(g) * NF2(g) + F(g) have been reanalyzed and a value of 57.2 f 1.0 kcal mol-' was obtained for the heat of dissociation of NF3. The above results were then used to obtain revised values for the heats of formation of N2F4 (AHfozg8[NZF4(g)] = -5.3 f 1.4 kcal mol-l) and NF2 (AHfozg8[NFZ(g)] = 7.8 f 1.0 kcal mol-').

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“…Tetrafluorohydrazine was shown to be in equilibrium with the difluoramino free radical. An average value of 20 ±1 kcal/mole for the enthalpy of the dissociation was obtained by four independent methods (34,66,72,114). This value together with the heat of formation of tetrafluorohydrazine permits the calculation of the heat of formation of the NF2 radical.…”

Section: Tetrafluorohydrazine Difluoramine and Chlorodifluoraminementioning

confidence: 99%

Derivatives of Nitrogen Fluorides

Ruff¹

1967

Chem. Rev.

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ESR of the N2F4–NF2 Equilibrium

Cited by 11 publications

References 2 publications

Electron spin resonance spectrum of the NF₂radical isolated in a neon matrix at 4°K

Electron spin resonance spectrum of the NF₂radical isolated in a neon matrix at 4°K

Thermodynamic properties of tetrafluorohydrazine and the difluoroamino radical

Derivatives of Nitrogen Fluorides

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ESR of the N2F4–NF2 Equilibrium

Cited by 11 publications

References 2 publications

Electron spin resonance spectrum of the NF2radical isolated in a neon matrix at 4°K

Electron spin resonance spectrum of the NF2radical isolated in a neon matrix at 4°K

Thermodynamic properties of tetrafluorohydrazine and the difluoroamino radical

Derivatives of Nitrogen Fluorides

Contact Info

Product

Resources

About

Electron spin resonance spectrum of the NF₂radical isolated in a neon matrix at 4°K

Electron spin resonance spectrum of the NF₂radical isolated in a neon matrix at 4°K