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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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The Free Story is the second greatest hits album by Free, and the first which was released outside of the US. It was released on 31 December 1973 by Island Records . The album reached number 2 in the UK Albums Chart and stayed in the charts for 6 weeks. [ 1 ]
Free broke up in 1971 due to tensions between members of the band. [1] In September, the group's first live album Free Live! was released, reaching number 4 on the UK Albums Chart and number 89 on the Billboard 200. [3] [6] The non-album single "My Brother Jake", released the same year, peaked at number 4 in the UK. [4]
February 2 – John Simon Ritchie, better known by his stage name Sid Vicious, former bassist of Sex Pistols, died from a drug overdose at the age of 21.; March 22 – Clayborn Pinkins, founding member and bassist of Black Death, was murdered by gunshot at the age of 25.
Free is the second studio album by English rock band Free, recorded and released in 1969. It saw the burgeoning of the songwriting partnership between Paul Rodgers and 16-year-old bassist Andy Fraser; eight of the nine songs are credited to the two. The album performed poorly, failing to chart in the UK and in the US. [2]