![]() configurational isomers) where interconversion necessarily involves breaking and reforming of chemical bonds. That is, the energy barrier must be small enough for the interconversion to occur.Ĭonformational isomers are thus distinct from the other classes of stereoisomers (i. ![]() ![]() Conformational isomerism arises when the rotation about a single bond is relatively unhindered. Rotations about single bonds are restricted by a rotational energy barrier which must be overcome to interconvert one conformer to another. Such isomers are generally referred to as conformational isomers or conformers and, specifically, as rotamers. ![]() "In chemistry, conformational isomerism is a form of stereoisomerism in which the isomers can be interconverted exclusively by rotations about formally single bonds (refer to figure on single bond rotation). It is useful in stereochemistry for drawing spatial structures of conformers of organic molecules, and schemes of stereospecific chemical reactions in organic synthesis. The vector stencils library "Conformations" contains 32 symbols of ring conformations, Newman and Fisher projections for chemical and biochemical drawing the molecular models and structural formulas of organic molecules and biochemical metabolites. ![]()
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