Stereochemistry and Organic Chemistry

Inorganic Chemistry

Submit Abstract Register Now

Molecular stereochemistry is a fundamental aspect of all areas of chemistry. It is especially important in inorganic chemistry where the coordination numbers are variable and occasionally quite high. The stereochemistry of co-ordi­nation compounds having both unidentate and multidentate ligands. Steric hindrance occurs when the large size of groups within a molecule prevents chemical reactions that are observed in related molecules with smaller groups. Steric effect in biomolecules arises from a fact that each atom within a molecule occupies a certain amount of space. If atoms are brought too close together, there is an associated cost in energy due to overlapping electron clouds and this may affect the molecule's preferred shape and reactivity. The Chan In gold Prelog priority rules , CIP system or CIP conventions are a set of rules used in polymer chemistry to name the stereoisomers of a molecule. A molecule may contain any number of stereocenters and any number of double bonds, and each gives rise to two possible configurations. The purpose of the CIP system is to assign an R or S descriptor to each stereo centre and an E or Z descriptor to each double bond so that the configuration of the entire molecule can be specified uniquely by including the descriptors in its systematic name. VSEPR theory is used to predict the arrangement of electron pairs around non-hydrogen atoms in molecules, especially simple and symmetric molecules, where these key, central atoms participate in bonding to 2 or more other atoms; the geometry of these key atoms and their non-bonding electron pairs in turn determine the geometry of the larger whole. The Ligand degeneracy is described as the solid angle formed with the metal at the vertex and the hydrogen atoms at the perimeter of the cone. Crystal Field Theory is a model that describes the breaking of degeneracies of electron orbital states, usually d or f orbitals, due to a static electric field produced by a surrounding charge distribution.  Stereospecificity is the property of a reaction mechanism that leads to different stereoisomeric reaction products from different stereoisomeric reactants, or which operates on only one of the stereoisomers.  Stereospecific polymerization leading to the synthesis of polymer chemistry having a highly ordered structure (stereo regular polymers).