An Electron Diffraction Study of Azomethane, CH3NNCH3.

Almenningen, A.; Anfinsen, I. M.; Haaland, A.; Resser, Dag; Rasmussen, Svend Erik; Sunde, Erling; Sørensen, Nils Andreas

doi:10.3891/acta.chem.scand.24-1230

Cited by 34 publications

(18 citation statements)

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“…Chiltz et al [57] have calculated the functions (H~ -H~)/ RT, and GO;, -H~ / RT as a temperature series with respectively 5 and 6 terms. These are in disagreement with our results because their calculations were made before the data of references [34], [32], [14], and [53] were available, and their e8timartH)f-s1-:2Kca1mol~I'fot .JHt(298:15~K) azomethanels much higher than the experimental value. …”

Section: Methane-d 4 and Ethylene-dcontrasting

confidence: 99%

Section: Methane-dmentioning

confidence: 99%

“…Two recent electron diffraction studies of azomethane [34,35] have been reported. Bond lengths and angles were taken from the work of Almenningen et al [34] and agreed quite well with other studies. Table 3 lists all relevant structural parameters, which were assumed to be the same for azomethane-d 6 • Arbitrary coordinates passing through the center of mass of the molecules were selected and the moments and products of inertia were calculated.…”

Section: Methane-dmentioning

confidence: 99%

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Ideal Gas Thermodynamic Properties of CH3, CD3, CD4, C2D2, C2D4, C2D6, C2H6, CH3N2CH3, and CD3N2CD3

Pamidimukkala¹,

Rogers²,

Skinner³

1982

Journal of Physical and Chemical Reference Data

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Ion-molecule reaction mechanisms: Thermal energy gas phase reactions of 12C+ and 13C+ ions with CH4, C2H4, C2H6, C3H6, C3H8, and CD3CH2CD3 in the temperature range 0 -3000 K and at 1 atmosphere have calculated by statistical thermodynamic methods employing spectroscopic and other molecular constants. The rigid rotorharmonic oscillator model has been used. Estimated uncertainties in the thermodynamic properties due to uncertainties in the molecular properties and estimates of the effects of vibrational anharmonicities are also reported for each compound at three temperatures.

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Section: Methane-d 4 and Ethylene-dcontrasting

confidence: 99%

Section: Methane-dmentioning

confidence: 99%

Section: Methane-dmentioning

confidence: 99%

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Ideal Gas Thermodynamic Properties of CH3, CD3, CD4, C2D2, C2D4, C2D6, C2H6, CH3N2CH3, and CD3N2CD3

Pamidimukkala¹,

Rogers²,

Skinner³

1982

Journal of Physical and Chemical Reference Data

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“…Because the interatomic : following bond distances: C-H, 1.095; ; C=C, 1.335; =C-CI, 1.719; =C-Br, distances listed in Table 6 were computed for normal bond lengths and angles, the individual values are less meaningful than the general trend since a slight increase in, for example, the C,-C2-C, angle would increase the separation between nearest neighbors. Evidence for some splaying of this angle in Z-2-butene has been presented (22). In addition, the interatomic separation would be affected by a small rotation of the carbinyl group about the C,-C2 bond.…”

Section: (C) Origins Oj'the Trendsmentioning

confidence: 97%

¹³C Nuclear Magnetic Resonance Studies. XX. ¹³C Shieldings of Several Allyl Alcohols. Geometric Dependence of ¹³C Shieldings

Brouwer¹,

Stothers²

1972

Can. J. Chem.

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The I3C spectra of 21 methyl-and halo-substituted 2-propenols have been determined. The shielding data are discussed with particular emphasis on their dependence on the orientation of the 3-halo substituents. Linear regression analyses of the results gave sets of additive parameters which correlate the shieldings with reasonable precision ( < 1 p.p.m.). A similar set of parameters has been generated from the published data for acyclic alkenes: these parameter sets are intercompared. The results of complete analysis of the proton spectra of most of the alcohols are also presented.On a determine le spectre au 13C de 21 derives methyles et halogenes du 2-propenol. On discute des donntes de blindage en insistant particulierement sur leur effet dans I'orientation des substituants halogenes en position-3. Les analyses de regression lineaire des rCsultats ont don& des ensembles de paramttres additifs qui nous fournissent les blindages avec une precision raisonnable (< l p.p.m.). Un ensemble similaire de paramttres a CtC tire des donnCes publikes pour les alctnes acycliques: on compare ces parametres avec ceux qu'on a obtenus. On presente aussi les resultats de I'analyse compltte des spectres de protons de la plupart des alcools.Canadian Journal of Chemistry, 50. 1361 (1972) IntroductionIn an earlier part of this series, 13C n.m.r. spectra of several unsaturated aliphatic systems were discussed and the results of an examination of a$-unsaturated carboxylic acids and esters compared with earlier data (1). These results clearly showed that olefinic 13C shieldings exhibit a marked dependence on the orientation of substituents bonded to the olefinic carbons. Furthermore, these shieldings were correlated by a linear expression entirely analogous to that employed for acyclic saturated hydrocarbons(2),

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“…Its N–N distance (1.294(7) Å) is comparable to the longest bonds reported for Ti–N=N–Ti complexes 31 – 33 , suggesting a high degree of N 2 reduction. The N–N distance in 3 is slightly longer than that in H 3 CN=NCH 3 (1.25 Å) 34 , but shorter than that in H 2 N–NH 2 (1.46 Å) 25 , indicating a character between N=N double and N–N single bonds for the bridging N 2 in 3 . This notion was supported by resonance-Raman spectroscopy (Fig.…”

Section: Resultsmentioning

confidence: 83%

N2 activation on a molybdenum–titanium–sulfur cluster

et al. 2018

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The FeMo-cofactor of nitrogenase, a metal–sulfur cluster that contains eight transition metals, promotes the conversion of dinitrogen into ammonia when stored in the protein. Although various metal–sulfur clusters have been synthesized over the past decades, their use in the activation of N2 has remained challenging, and even the FeMo-cofactor extracted from nitrogenase is not able to reduce N2. Herein, we report the activation of N2 by a metal–sulfur cluster that contains molybdenum and titanium. An N2 moiety bridging two [Mo3S4Ti] cubes is converted into NH3 and N2H4 upon treatment with Brønsted acids in the presence of a reducing agent.

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An Electron Diffraction Study of Azomethane, CH3NNCH3.

Cited by 34 publications

References 0 publications

Ideal Gas Thermodynamic Properties of CH3, CD3, CD4, C2D2, C2D4, C2D6, C2H6, CH3N2CH3, and CD3N2CD3

Ideal Gas Thermodynamic Properties of CH3, CD3, CD4, C2D2, C2D4, C2D6, C2H6, CH3N2CH3, and CD3N2CD3

¹³C Nuclear Magnetic Resonance Studies. XX. ¹³C Shieldings of Several Allyl Alcohols. Geometric Dependence of ¹³C Shieldings

N2 activation on a molybdenum–titanium–sulfur cluster

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An Electron Diffraction Study of Azomethane, CH3NNCH3.

Cited by 34 publications

References 0 publications

Ideal Gas Thermodynamic Properties of CH3, CD3, CD4, C2D2, C2D4, C2D6, C2H6, CH3N2CH3, and CD3N2CD3

Ideal Gas Thermodynamic Properties of CH3, CD3, CD4, C2D2, C2D4, C2D6, C2H6, CH3N2CH3, and CD3N2CD3

13C Nuclear Magnetic Resonance Studies. XX. 13C Shieldings of Several Allyl Alcohols. Geometric Dependence of 13C Shieldings

N2 activation on a molybdenum–titanium–sulfur cluster

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¹³C Nuclear Magnetic Resonance Studies. XX. ¹³C Shieldings of Several Allyl Alcohols. Geometric Dependence of ¹³C Shieldings