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Tröger's base [1] is a white solid tetracyclic organic compound. [2] Its chemical formula is (CH 3 C 6 H 3 NCH 2) 2 CH 2. Tröger's base and its analogs are soluble in various organic solvents and strong acidic aqueous solutions due to their protonation. It is named after Julius Tröger, who first synthesized it in 1887.
COC shows good chemical resistance and barrier to other solvents, such as alcohols, and is very resistant to attack from acids and bases. Electronic properties of COC are in some respects similar to fluoropolymers , most notably a similarly low dissipation factor or tan delta, and low permittivity.
The Schlosser base (or Lochmann-Schlosser base), the combination of n-butyllithium and potassium tert-butoxide, is commonly cited as a superbase. n -Butyllithium and potassium tert -butoxide form a mixed aggregate of greater reactivity than either component reagent.
Wards 10 Best Engines is an annual list of the ten "best" automobile engines available in the U.S. market, that are selected by Wards AutoWorld magazine. The list was started in 1994 for model year 1995, and has been drawn every year since then, published at the end of the preceding year.
In computer science, best, worst, and average cases of a given algorithm express what the resource usage is at least, at most and on average, respectively. Usually the resource being considered is running time, i.e. time complexity, but could also be memory or some other resource. Best case is the function which performs the minimum number of ...
Performing three-man 24hr patrols through the remainder of their deployment, this platoon was widely regarded as the division's best at that time. Following a cease-fire in March 1991, the support soldiers began redeploying to Fort Drum through June of that year.
Chain of custody (CoC), in legal contexts, is the chronological documentation or paper trail that records the sequence of custody, control, transfer, analysis, and disposition of materials, including physical or electronic evidence.
Cochrane's father, the 9th Earl of Dundonald (1748–1831) Thomas Cochrane was born at Annsfield, near Hamilton, South Lanarkshire, Scotland.He was the son of Archibald, Lord Cochrane (1748–1831), who later became, in October 1778, the 9th Earl of Dundonald, and his wife, Anna Gilchrist.