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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]
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 ...
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.
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PARIS (Reuters) -Iran's acceleration in its enrichment of uranium to close to bomb grade is "extremely serious", has no civilian justification and contradicts Tehran's assertions on wanting ...
The Secret X-Factor That History's Strongest Men Have in Common. Alyssa Ages. September 12, 2023 at 10:00 AM. ... logging the first drug-free 800-pound squat in the state’s history, and hitting ...
Strongest superbases are synthesised in only gas phase: Ortho-diethynylbenzene dianion (C 6 H 4 (C 2) 2) 2− (the strongest superbase ever synthesized) Meta-diethynylbenzene dianion (C 6 H 4 (C 2) 2) 2− (second strongest superbase) Para-diethynylbenzene dianion (C 6 H 4 (C 2) 2) 2− (third strongest superbase)
First movie with African-American interracial marriage: One Potato, Two Potato, [77] actors Bernie Hamilton and Barbara Barrie, written by Orville H. Hampton, Raphael Hayes, directed by Larry Peerce First African-American man to win the Academy Award for Best Actor : Sidney Poitier ( Lilies of the Field , 1963) (See also: James Baskett , 1948)
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