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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.
The manga was serialized by ASCII Media Works through their monthly magazine Dengeki Daioh from December 2013 to July 2020 and published in English by Seven Seas Entertainment. Kamachi and Teto Tachitsu wrote and illustrated its manga spin-off titled A Certain Idol Accelerator-sama , which was published from October 2015 to November 2018.
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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 ...
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]
List of anime releases made concurrently in the United States and Japan; List of anime series by episode count; List of anime theatrically released in the United States; Lists of anime and manga characters; List of bisexual characters in anime; List of gay characters in anime; List of highest-grossing anime films; List of lesbian characters in ...
March 1: Akira Toriyama, Japanese manga creator (Dr. Slump, Dragon Ball), dies from acute subdural hematoma at age 68. [ 294 ] March 8 : Tarako , Japanese voice actress (voice of Momoko Sakura in Chibi Maruko-chan , Kirara in Inuyasha , Madge in Castle in the Sky ), dies at age 63.