isomers


Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.

isomers

Different (usually organic) compounds having the same molecular formula and relative molecular mass but some different properties, as they have different three-dimensional structures.
References in periodicals archive ?
Sandia said the machine is able to distinguish isomers that have "very different chemical characteristics," such as enols, which are "less-stable isomers of other well-known combustion intermediates.
There are some 25 different chemical forms, or isomers, of CLA, Jones points out.
Now, using ultrafast lasers, physicists at the University of Virginia in Charlottesville have observed that clusters randomly morph between different arrangements, or isomers, many times within a nanosecond.
Fundamentals--"New hybrid process for purification and separation of MDI isomers," Manfred Stepanski, Sulzer Chemtech Ltd.
In products such as Ritalin, one of the isomers provides the benefit while the other produces side effects.
Two other chemical groups are attached to this hexagon, but each can attach at two different angles, resulting in four different versions, or optical isomers.
The test which is commonly used for measuring methamphetamine must differentiate between the two isomers and if, when tested, they are not separated, the possibility is that you will come up with a false positive fothe narcotic form of methamphetamine.
The earlier literature assigned the isomers by relative GC retention times (Wigfield and Phelps 1974).
The spectra reveal a plethora of conformational isomers, differing solely by rotation about the C-C single bonds.
In the amorphous state, PET has a more complex conformational composition and both trans and gauche isomers of the above segment can be found [9, 13, 14].
a Wall Street wonder in 1998, has proven its ability to separate isomers of conventional drug molecules.