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According to calculations, ortho-diethynylbenzene dianion is the strongest superbase and has a proton affinity of 1,843.987 kJ/mol (440.723 kcal/mol). [1] The meta isomer is the second-strongest, and the para isomer is the third. All three are readily able to accept any proton to its ethynyl tails, from almost any compound.
A superbase is a compound that has a particularly high affinity for protons. Superbases are of theoretical interest and potentially valuable in organic synthesis . [ 1 ] [ 2 ] Superbases have been described and used since the 1850s.
Lithium monoxide anion (LiO −) is a superbase existing in the gas phase. It was the strongest known base until 2008, when the isomeric diethynylbenzene dianions were determined to have a higher proton affinity. The methanide ion CH − 3 was the strongest known base before lithium monoxide anion was discovered. [2] LiO − has a proton ...
On any given day you might see Rita, or as she's called online, BadGalRiRi504, out of breath, in lingerie, and covered in chocolate body paint. In other videos, Rita tosses full-coverage underwear ...
This is the incredible Kay Pike. Using only body paint and paint brushes, the ever so talented Kay can magically transform herself into any superhero or villain in the (comic) book.
In chemistry, the Verkade base (or Verkade superbase) is a powerful superbase with the formula P(MeNCH 2 CH 2) 3 N. A colorless oil, it is an aminophosphine although its inventor John Verkade called it proazaphosphatrane. The trimethyl derivative or 2,5,8,9-tetraaza-1-phosphabicyclo[3.3.3]undecane is the simplest. [1]
The 15 Most Iconic Power Couples in Grammys History. Lex Goodman. February 1, 2024 at 10:28 AM. ... here are 15 of the most iconic couples of Grammys past and present. 1. John Lennon & Yoko Ono (1975)
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