sign up I login
 advanced
refer a friend - earn nickels!!

Community Contributions - Articles by goIITians

  Back to Community Shelf like the article? email it to a friend. email this article!  
  Organic- REVIEW SUMMARY OF ISOMERISM.....LOOK NO FURTHER   No Nickels Awarded
Tagged with:    [Post New]posted on 18 Apr 2007 19:07:48 IST    

General Summary of Isomerism and Molecular Descriptors

Methods of Describing Molecules with Increasing Refinement

  1. Composition
    The number and kinds of atoms that make up a molecule. This information is supplied by a molecular formula.
  2. Constitution
    The bonding pattern of the atoms of a molecule (ie. which atoms are connected to which other atoms and by what kind of bonds). Different bonding constitutions are interconverted only by breaking and reforming covalent bonds. This information is supplied by a structural formula, and is implicit in the IUPAC name.
  3. Configuration
    The permanent spatial relationship of the atoms of a molecule to each other. Different configurations are interconverted only by breaking and reforming covalent bonds. This information is given in a stereo-formula, and is also provided by a prefix to the IUPAC name (eg. cis & trans).
  4. Conformation
    The variable spatial orientation of the atoms of a molecule to each other that occurs by rotation or twisting of bonds. Different conformations are interconverted without breaking covalent bonds. This information is supplied by conformational formulas, and also by nomenclature terms (eg. gauche & anti).

Relationship of Constitutional and Stereoisomers


Relationships of Stereoisomers

About the Author:
kghedriu (2333)

Blazing goIITian

Olaaa!! Perrrfect answer. 423  [532 rates]

kghedriu's Avatar

total posts: 544    
online Offline
 this article: 20 points  (with Olaaa!! Perrrfect answer.   in 4 votes )   [?]
 
You have to be logged on to rate
  
ritu_007
ritu_007 is offline comment by ritu_007    (posted on 18 Apr 2007 20:52:37 IST)
good work.keep it up.
amitsingh
amitsingh is offline comment by amitsingh    (posted on 18 Apr 2007 23:56:27 IST)
nice
Pragati
Pragati is offline comment by Pragati    (posted on 19 Apr 2007 01:14:21 IST)
Excellent..........Thank u dear
nikhila1234
nikhila1234 is offline comment by nikhila1234    (posted on 20 Apr 2007 14:21:00 IST)
nice post gowtham keep it up
Go to:   

Top Offers for goIITians
Correspondence Courses
Brilliant Tutorials
Narayana Institute
Aakash Institute
Classroom/Crash Courses
Narayana - Kota , Delhi , Others
Brilliant Tutorials - Class , Crash
Aakash Institute - Medical , Engg
Online Test Series
Brilliant Tutorials
Narayana Institute
Aakash Institute
Mahesh Tutorials
AMITY      Sri Chaitanya