Explain about optical isomerism, Chemistry

Q. Explain about Optical Isomerism?

Optical Isomerism: -Two isomers which have almost identical physical and chemical properties like mp. B p. density. Colour etc.. But differ in the way they rotate the plane-polarised light are called optical isomers. Such optically active compounds exist in pairs and are known as stereoisomers or enantiomers. These isomers are    non-super imposable mirror images of each other. Hence any molecule which contains either a-centre of symmetry or a plane of symmetry will not show optical isomerism.

Optical isomerism is rarely observed in square planar complexes. Tetrahedral complexes of the type [M(AB)2] do give optical isomers as shown in Fig, especially where  /  M = Be, B etc.

203_Explain about Optical Isomerism.png

However optical isomerism very common with octahedral complexes of the type!  M (AA)3. M(AA)2ab, M(AA)a2,b2. M(AA)(BB)a2 etc. A few typical examples.

Posted Date: 7/11/2013 1:37:01 AM | Location : United States







Related Discussions:- Explain about optical isomerism, Assignment Help, Ask Question on Explain about optical isomerism, Get Answer, Expert's Help, Explain about optical isomerism Discussions

Write discussion on Explain about optical isomerism
Your posts are moderated
Related Questions
In a multi-electron atom, which of the following orbitals described by the three quantum members will have the same energy in the absence of magnetic and electric fields: (1)n=

Saytzeff rule - Elimination Reaction As per to that principle, major part is the most substituted alkene that is , major product is obtain by elimination of H

Millon test - Test of proteins Millon's test : while millon's reagent (mercurous & mercuric nitrate in nitric acid) is added to a protein solution, a white precipitate that tur

what are the chemical propertiies of acid halide?

how to prepare a dicarboxylic ?

1. The feed to an ammonia synthesis reactor is 25% (lbmole) nitrogen with the balance hydrogen. The flow rate is 3000 kg/h at 65°C and 95 bar.  Calculate the flow rate of nitrogen

Depression in freezing point - Physical methods for Non-volatile substances Mol. Mass = (1000 K f * w) /W* ΔT Where, K f stands for Molal depression constant of the solve

How could lipids and proteins form lipoproteins, stable superstructures which can be simply transported in blood? How would    a) cholesterol       b) esters of cholester


The amino acid glutamine can be produced bythe following equilibrium in the presence of a suitable catalyst.  The equilibrium constant for this reaction is 3.5 x 10-3 at 25 oC.