Search results
Results from the WOW.Com Content Network
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. Triphenylmethane is the basic skeleton of many synthetic dyes called triarylmethane dyes, many of them are pH indicators, and some display ...
Triphenylmethanol features three phenyl (Ph) rings and an alcohol group bound to a central tetrahedral carbon atom. All three C–Ph bonds are typical of sp 3-sp 2 carbon-carbon bonds with lengths of approximately 1.47 Å, while the C–O bond length is approximately 1.42 Å.
Triarylmethane dyes can be grouped into families according to the nature of the substituents on the aryl groups. In some cases, the anions associated with the cationic dyes (say crystal violet) vary even though the name of the dye does not.
2 Structure, bonding, and characterization. 3 Preparation, ... For example, triphenylmethane (Ph 3 CH) has three phenyl groups attached to the same carbon center ...
While the triphenyl radical itself forms a quinoid dimer, derivatives of the triphenyl radical with certain substituted phenyl groups do form dimers with a hexaphenylethane-like structure. For example, the tris(3,5-di- tert -butylphenyl) radical dimerizes to give hexakis(3,5-di- t -butylphenyl)ethane, with a bond length of 1.67 Å for the ...
Triphenylene has delocalized 18-π-electron systems based on a planar structure, corresponding to the symmetry group D 3h. It is a white or colorless solid. It is a white or colorless solid. Preparation
Triarylmethine dyes, resonance structure (R=H, alkyl) Triarylmethine dyes are derived from triphenylmethane, in which at least two of the aromatic rings have electron-donating substituents (e.g. amino groups, secondary and tertiary alkylamino groups or hydroxy groups). They are therefore also referred to in older literature as triarylmethane dyes.
The structure is also redox-sensitive, changing from a reduced yellow form to an oxidized red form in solution. The reduction potential of around 0.77 volts is similar to that of other triphenylmethane dyes. It is usable as a reversible redox indicator in some analytical methods. [4]