Enantiomorphism, /ɛnæntiəʊˈmɔːfɪz(ə)m/, is a complex word that refers to the similarity between two molecules or crystals, which are mirror images of each other but cannot be superimposed. The spelling of the word illustrates the combination of two Greek terms, "enanti" meaning "opposite" and "morph" meaning "form or shape," with the suffix "-ism" indicating a state or condition. The IPA phonetic transcription of "enantiomorphism" accurately represents how the word is pronounced, with the stress falling on the third syllable and the distinction between the "ae" diphthong and the individual vowels.
Enantiomorphism refers to a concept within chemistry and physics to describe the symmetry property displayed by certain objects or molecules. Derived from the Greek words "enantios" (opposite) and "morphe" (form), enantiomorphism specifically pertains to the mirror-image relationship observed between two objects that cannot be superimposed upon each other.
In chemistry, enantiomorphism is commonly associated with chiral molecules, which possess the ability to exist as two non-identical, mirror-image structures called enantiomers. Enantiomers are characterized by their identical physical and chemical properties, except for their interaction with polarized light, as they exhibit opposite optical rotation. This property arises due to the unique spatial arrangement of atoms or groups of atoms in chiral molecules, leading to distinct configurations that cannot be interconverted without breaking or forming new chemical bonds.
Enantiomorphism finds great significance in pharmaceuticals and drug development, as enantiomers can exhibit different biological activities and physiological effects on an organism's body. The varying interactions of enantiomers with specific receptors or enzymes may result in differences in potency, efficacy, toxicity, or metabolism, emphasizing the need to identify and separate enantiomers in drug formulation and development processes.
In physics, enantiomorphism is also observed in crystallography, where certain crystals can exhibit handedness or chirality. These crystal structures exist in enantiomeric pairs as they possess identical chemical compositions but differ in their spatial arrangement of atoms. This property influences their physical properties, such as optical rotation, magnetic behavior, or electrical conductivity.
Understanding enantiomorphism plays a vital role in various scientific disciplines, guiding the synthesis, analysis, and application of molecules with distinct chiral features and aiding in the design and optimization of compounds with
The relation of two objects similar in form, but not superposable, as the two hands, or an object and its mirror-image.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "enantiomorphism" is derived from two Greek roots: "enantio" meaning "opposite" or "mirror image" and "morphe" meaning "form" or "shape". Therefore, "enantiomorphism" refers to the property of two molecules or objects being mirror images of each other. The term is commonly used in chemistry and crystallography to describe pairs of chiral molecules or objects.