Is 2 methyl 2 propane amine an optical isomer or a geometrical isomer and why?

Answer 1

Geometric:

In general, such isomers contain double bonds, which cannot rotate, but they can also arise from ring structures, wherein the rotation of bonds is greatly restricted.

Cis and trans isomers occur both in organic molecules and in inorganic coordination complexes. This is not the case in 2-Methyl-Propane-2-Amine.

Optical:

A chiral molecule is a type of molecule that lacks an internal plane of symmetry and thus has a non-superposable mirror image. The feature that is most often the cause of chirality in molecules is the presence of an asymmetric carbon atom.

Either this is not the case in 2-Methyl-Propane-2-Amine:

The C(2) atom of propane is (by far) not chiral, not even in 2-Hydroxy-Propane-2-Amine. The C(2) atom holds 3 or 2 Methyl-groups from the propane structure.

Answer 2

2-methyl-2-propaneamine (isopropylamine) is neither an optical isomer nor a geometric isomer. Optical isomers arise from chirality (having a non-superimposable mirror image), whereas geometric isomers arise from restricted rotation around a double bond or ring. In the case of isopropylamine, it is a branched molecule without a chiral center or a double bond, so it does not exhibit optical or geometric isomerism.