Energetics of the N-O Bonds in 2-Hydroxyphenazine-di-N-oxide

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Article on energetics of the N-O bonds in 2-hydroxyphenazine-di-N-oxide.

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8 p.

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Gomes, José R. B.; Sousa, Emanuel A.; Gonçalves, Jorge M.; Monte, Manuel J. S.; Gomes, Paula; Pandey, Siddharth et al. July 29, 2005.

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Article on energetics of the N-O bonds in 2-hydroxyphenazine-di-N-oxide.

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8 p.

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Abstract: The standard enthalpy of formation and the enthalpy of sublimation of crystalline 2-hydroxyphenazine-di-N-oxide, at T = 298.15 K, were determined from isoperibol static bomb combustion calorimetry and from Knudsen effusion experiments, as −76.7 ± 4.2 kJ·mol-1 and 197 ± 5 kJ·mol-1, respectively. The sum of these two quantities gives the standard enthalpy of formation in the gas-phase for this compound, (g) = 120 ± 6 kJ·mol-1. This value was combined with the gas-phase standard enthalpy of formation for 2-hydroxyphenazine retrieved from a group estimative method yielding the mean (N−O) bond dissociation enthalpy, in the gas-phase, for 2-hydroxyphenazine-di-N-oxide. The result obtained with this strategy is (N − O) = 263 ± 4 kJ·mol-1, which is in excellent agreement with the B3LYP/6-311+G(2d,2p)//B3LYP/6-31G(d) computed value, 265 kJ·mol-1.

Reprinted with permission from the Journal of Chemical and Engineering Data. Copyright 2005 American Chemical Society.

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  • Journal of Physical Chemistry B, 2005, Washington DC: American Chemical Society, pp. 16188-16195

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  • Publication Title: Journal of Physical Chemistry B
  • Volume: 109
  • Issue: 33
  • Page Start: 16188
  • Page End: 16195
  • Peer Reviewed: Yes

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  • July 29, 2005

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  • Aug. 1, 2014, 8:31 a.m.

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Gomes, José R. B.; Sousa, Emanuel A.; Gonçalves, Jorge M.; Monte, Manuel J. S.; Gomes, Paula; Pandey, Siddharth et al. Energetics of the N-O Bonds in 2-Hydroxyphenazine-di-N-oxide, article, July 29, 2005; [Washington D.C.]. (digital.library.unt.edu/ark:/67531/metadc307505/: accessed June 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Arts and Sciences.