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  2. Mesitylene - Wikipedia

    en.wikipedia.org/wiki/Mesitylene

    Mesitylene or 1,3,5-trimethylbenzene is a derivative of benzene with three methyl ... C 6 H 2 Me 3 and is found in various ... 6.8 ppm in the 1 H NMR ...

  3. Proton nuclear magnetic resonance - Wikipedia

    en.wikipedia.org/wiki/Proton_nuclear_magnetic...

    Proton nuclear magnetic resonance (proton NMR, hydrogen-1 NMR, or 1 H NMR) is the application of nuclear magnetic resonance in NMR spectroscopy with respect to hydrogen-1 nuclei within the molecules of a substance, in order to determine the structure of its molecules. [1]

  4. Magnetic inequivalence - Wikipedia

    en.wikipedia.org/wiki/Magnetic_inequivalence

    A classic example is the 1 H-NMR spectrum of 1,1-difluoroethylene. [5] The single 1 H-NMR signal is made complex by the 2 J H-H and two different 3 J H-F splittings. The 19 F-NMR spectrum will look identical. The other two difluoroethylene isomers give similarly complex spectra. [6]

  5. Aromatic ring current - Wikipedia

    en.wikipedia.org/wiki/Aromatic_ring_current

    An aromatic ring current is an effect observed in aromatic molecules such as benzene and naphthalene. If a magnetic field is directed perpendicular to the plane of the aromatic system, a ring current is induced in the delocalized π electrons of the aromatic ring. [ 1 ]

  6. Hexamethylbenzene - Wikipedia

    en.wikipedia.org/wiki/Hexamethylbenzene

    Hexamethylbenzene, also known as mellitene, is a hydrocarbon with the molecular formula C 12 H 18 and the condensed structural formula C 6 (CH 3) 6.It is an aromatic compound and a derivative of benzene, where benzene's six hydrogen atoms have each been replaced by a methyl group.

  7. m-Xylene - Wikipedia

    en.wikipedia.org/wiki/M-Xylene

    m-Xylene (meta-xylene) is an aromatic hydrocarbon.It is one of the three isomers of dimethylbenzene known collectively as xylenes.The m-stands for meta-, indicating that the two methyl groups in m-xylene occupy positions 1 and 3 on a benzene ring.

  8. Nuclear magnetic resonance spectra database - Wikipedia

    en.wikipedia.org/wiki/Nuclear_magnetic_resonance...

    The NMR data includes 1 H, 13 C, 11 B, 15 N, 17 O, 19 F, 29 Si, and 31 P. The data were in the form of graphically displayed line lists. The data were in the form of graphically displayed line lists. Access to the database could be purchased piecemeal or leased as the entire library through individual or group contracts.

  9. Durene - Wikipedia

    en.wikipedia.org/wiki/Durene

    Durene, or 1,2,4,5-tetramethylbenzene, is an organic compound with the formula C 6 H 2 (CH 3) 4. It is a colourless solid with a sweet odor. The compound is classified as an alkylbenzene. It is one of three isomers of tetramethylbenzene, the other two being prehnitene (1,2,3,4-tetramethylbenzene) and isodurene (1,2,3,5-tetramethylbenzene ...