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Triphenylamine is an organic compound with formula (C 6 H 5) 3 N. In contrast to most amines, triphenylamine is nonbasic. At room temperature it appears as a colorless crystalline solid, with monoclinic structure. It is well miscible in diethyl ether and benzene, but it is practically insoluble in water, and partially in ethanol.
m-MTDATA - whose full name is 4,4',4"-Tris(N-3-methylphenyl-N-phenyl-amino) triphenylamine - is an organic molecule belonging to the class of starburst molecules, [3] often used as a material for the production of organic electronic devices. It is particularly appreciated for its hole-transporting ability and is widely used in OLED and other ...
Diphenylamine is an organic compound with the formula (C 6 H 5) 2 NH. The compound is a derivative of aniline, consisting of an amine bound to two phenyl groups. The compound is a colorless solid, but commercial samples are often yellow due to oxidized impurities. [5]
The parent member is triphenylamine. Triarylamines are of interest as components of molecular electronics as well as some dyes. [1] Preparation and structure
Triphenylmethane or triphenyl methane (sometimes also known as Tritan), is the hydrocarbon with the formula (C 6 H 5) 3 CH. This colorless solid is soluble in nonpolar organic solvents and not in water.
[1] [2] It is comparable to a Beckmann rearrangement which also involves a substitution at a nitrogen atom through a carbon to nitrogen shift. [3] As an example, triaryl hydroxylamines can undergo a Stieglitz rearrangement by dehydration and the shift of a phenyl group after activation with phosphorus pentachloride to yield the respective ...
However, triphenylphosphine (pK a 2.73) is more basic than triphenylamine (pK a −5), mainly because the lone pair of the nitrogen in NPh 3 is partially delocalized into the three phenyl rings. Whereas the lone pair on nitrogen is delocalized in pyrrole, the lone pair on phosphorus atom in the phosphorus equivalent of pyrrole is not.
A variety of amines and nitrogen heterocycles are useful bases of moderate strength (pK a of conjugate acid around 10-13) . N,N-Diisopropylethylamine (DIPEA, also called Hünig's Base [1]), pK a = 10.75