enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Deuterated DMSO - Wikipedia

    en.wikipedia.org/wiki/Deuterated_DMSO

    13 C NMR Spectrum of DMSO-d 6. Pure deuterated DMSO shows no peaks in 1 H NMR spectroscopy and as a result is commonly used as an NMR solvent. [2] However commercially available samples are not 100% pure and a residual DMSO-d 5 1 H NMR signal is observed at 2.50ppm (quintet, J HD =1.9Hz). The 13 C chemical shift of DMSO-d 6 is 39.52ppm (septet ...

  3. Deuterium NMR - Wikipedia

    en.wikipedia.org/wiki/Deuterium_NMR

    Deuterium NMR is NMR spectroscopy of deuterium (2 H or D), an isotope of hydrogen. [1] Deuterium is an isotope with spin = 1, unlike hydrogen-1, which has spin = 1/2. The term deuteron NMR, in direct analogy to proton NMR, is also used. [ 2 ]

  4. Spectral Database for Organic Compounds - Wikipedia

    en.wikipedia.org/wiki/Spectral_Database_for...

    If a spectrum of an unknown chemical compound is available, a reverse search can be carried out by entering the values of the chemical shift, frequency or mass of the peaks in the NMR, FT-IR or EI-MS spectrum respectively. This type of search affords all the chemical compounds in the database that have the entered spectral characteristics. [6]

  5. Deuterated solvent - Wikipedia

    en.wikipedia.org/wiki/Deuterated_solvent

    Deuterated solvents are a group of compounds where one or more hydrogen atoms are substituted by deuterium atoms. These isotopologues of common solvents are often used in nuclear magnetic resonance spectroscopy .

  6. Dimethyl sulfoxide (data page) - Wikipedia

    en.wikipedia.org/wiki/Dimethyl_sulfoxide_(data_page)

    Phase behavior Triple point: 291.67 K (18.52 °C), ? Pa Critical point [2]: 720 K (447 °C), 5630 kPa Std enthalpy change of fusion, Δ fus H o: 14.37 kJ/mol Std entropy change

  7. Roberts warns against ignoring Supreme Court rulings as ...

    www.aol.com/news/roberts-warns-against-ignoring...

    Officials “from across the political spectrum have raised the specter of open disregard for federal court rulings,” Roberts wrote in the report, released by the Supreme Court on Tuesday.

  8. Deuterium - Wikipedia

    en.wikipedia.org/wiki/Deuterium

    In nuclear magnetic resonance spectroscopy, deuterium has a very different NMR frequency (e.g. 61 MHz when protium is at 400 MHz) and is much less sensitive. Deuterated solvents are usually used in protium NMR to prevent the solvent from overlapping with the signal, though deuterium NMR on its own right is also possible.

  9. Tua Tagovailoa says he has personal security amid string of ...

    www.aol.com/sports/tua-tagovailoa-says-personal...

    🎥 Amidst the recent security concerns around NFL players’ houses, Tua Tagovailoa reveals he has hired personal security “Just let that be known, they are armed…