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Showing posts with the label Stereochemistry

R-S Configuration and Configurational Isomers

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R-S Configuration R-S Configuration its helps identify Enantiomers and Diatereomers  Enantiomer:- Non superimposed mirror image  Diatereomer:- Non superimposable , Non mirror image (R,R SR or SS RS ) R = Clock wise when counting A/c to CIP Rule  S = Anti Clock wish CIP Rule For R-S   1 Higher the atomic Number & Higher the priority 2 Higher isotope preferred then lighter 3 IF first attack atom are same so move toward next  4 Multiple bond are solved A/c to their multiplicity  5 Lone pair e- get lowest preference than H  6 When lighter atom desh then counting No. Clock wise so R and Anti clock wise so S  7 When ligher atom wedge then counting No.Clock wise R = S  each opposite 

Fisher Projection and Numan Projection from stereochemistry

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Stereochemistry Type :- Static stereo  Dynamic stereo  Stereochemistry :- study of isomer and 3D arrangement of atom and molecule  Isomerism    Isomers :- two and more than two compound having same molecule formula but different physical and chemical properties known as isomer  Isomerism not the properties of at least two compound  Two isomers are different IUPSC Eg . CH3CH2OH  or CH3-O-CH3 Type of Isomers   Structural / Regeoisomer Stereoisomer     click here http://ceesty.com/q6oAXy Structural :-- Chain  Position Function group conformation  Meta  Ring chain  Tautomerism  Stereoisomer :-- Conformational :- By  (c-c) bond rotational Configurational :-  Geometrical :-    (by restricted rotation  C=C / C-C ) .  Optical :- ( due to different behave to light ) Configurational:-  It the 3D dimension a...