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  2. Trimethylsilylpropanoic acid - Wikipedia

    en.wikipedia.org/wiki/Trimethylsilylpropanoic_acid

    Trimethylsilylpropanoic acid (TMSP or TSP) is a chemical compound containing a trimethylsilyl group. It is used as internal reference in nuclear magnetic resonance for aqueous solvents (e.g. D 2 O). For that use it is often deuterated (3-(trimethylsilyl)-2,2,3,3-tetradeuteropropionic acid or TMSP- d 4 ). [ 1 ]

  3. DSS (NMR standard) - Wikipedia

    en.wikipedia.org/wiki/DSS_(NMR_Standard)

    Sodium trimethylsilylpropanesulfonate (DSS) is the organosilicon compound with the formula (CH 3) 3 SiCH 2 CH 2 CH 2 SO 3 − Na +. It is the sodium salt of trimethylsilylpropanesulfonic acid. A white, water-soluble solid, it is used as a chemical shift standard for proton NMR spectroscopy of aqueous solutions. [1]

  4. Sigma bond - Wikipedia

    en.wikipedia.org/wiki/Sigma_bond

    There is no more than 1 sigma bond between any two atoms. Molecules with rings have additional sigma bonds, such as benzene rings, which have 6 C−C sigma bonds within the ring for 6 carbon atoms. The anthracene molecule, C 14 H 10, has three rings so that the rule gives the number of sigma bonds as 24 + 31 = 26. In this case there are 16 ...

  5. 3-sigma - Wikipedia

    en.wikipedia.org/?title=3-sigma&redirect=no

    This page was last edited on 24 September 2024, at 05:21 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  6. Sebastian Zapeta-Calil, accused of burning woman to ... - AOL

    www.aol.com/news/sebastian-zapeta-calil-accused...

    The illegal Guatemalan migrant charged with torching a sleeping straphanger to death on a Brooklyn subway train was a heavy drinker who chain-smoked K2, pals at the homeless shelter where he was ...

  7. Get breaking Business News and the latest corporate happenings from AOL. From analysts' forecasts to crude oil updates to everything impacting the stock market, it can all be found here.

  8. Beyoncé's Mom Tina Knowles Reacts to Son-in-Law Jay-Z's ...

    www.aol.com/beyonc-mom-tina-knowles-reacts...

    Beyoncé’s mother Tina Knowles has seemingly weighed in on the new rape allegation against her son-in-law Jay-Z. Shortly after the rapper (né Shawn Carter) was accused of raping a 13-year-old ...

  9. Carbon–carbon bond - Wikipedia

    en.wikipedia.org/wiki/Carbon–carbon_bond

    The carbon–carbon single bond is a sigma bond and is formed between one hybridized orbital from each of the carbon atoms. In ethane, the orbitals are sp 3-hybridized orbitals, but single bonds formed between carbon atoms with other hybridizations do occur (e.g. sp 2 to sp 2). In fact, the carbon atoms in the single bond need not be of the ...