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Sphericity Governs Both Stereochemistry in a Molecule and Stereoisomerism Among Molecules
Author(s) -
Fujita Shinsaku
Publication year - 2002
Publication title -
the chemical record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.61
H-Index - 78
eISSN - 1528-0691
pISSN - 1527-8999
DOI - 10.1002/tcr.10018
Subject(s) - sphericity , molecule , rotation formalisms in three dimensions , group (periodic table) , chemistry , mathematics , organic chemistry , geometry
Abstract The concept of sphericity and relevant fundamental concepts that we have proposed have produced a systematized format for comprehending stereochemical phenomena. Permutability of ligands in conventional approaches is discussed from a stereochemical point of view. After the introduction of orbits governed by coset representations, the concepts of subduction and sphericity are proposed to characterize desymmetrization processes, with a tetrahedral skeleton as an example. The stereochemistry and stereoisomerism of the resulting promolecules (molecules formulated abstractly) are discussed in terms of the concept of sphericity as a common mathematical and logical framework. Thus, these promolecules are characterized by point group and permutation group symmetry. Prochirality, stereogenicity, prostereogenicity, and relevant topics are described in terms of the concept of sphericity. © 2002 The Japan Chemical Journal Forum and Wiley Periodicals, Inc., Chem Rec 2: 164–176; 2002: Published online in Wiley InterScience (www.interscience.wiley.com) DOI 10.1002/tcr.10018