Pharmaceutical Organic Chemistry III

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    Elements of Symmetry in Chemistry

    Elements of symmetry refer to specific geometric features or operations that describe the spatial arrangement of molecules or crystals. These features allow a molecule or crystal to be manipulated in space (rotated, reflected, or inverted) and still retain its original orientation or appearance. Symmetry plays a crucial role in understanding the properties of molecules and…

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    Stereo Isomerism

    Stereo isomerism is a type of isomerism where compounds with the same molecular formula differ in the spatial arrangement of atoms, leading to distinct physical, chemical, and biological properties. Unlike structural isomers, which differ in connectivity, stereoisomers have identical connectivity but vary in three-dimensional orientation. Stereo isomerism is divided into two main categories: 1. Geometrical…