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Volumn 6, Issue 8, 2000, Pages 1346-1354

Quantitative chirality/enantioselectivity relations in large random supramolecular structures

(2)  Katzenelson, O a   Avnir, D a  

a NONE

Author keywords

Chiral resolution; Enantioselectivity; Quantitative chirality; Supramolecular chemistry

Indexed keywords

ARTICLE; CALCULATION; CHIRALITY; GEOMETRY; MOLECULAR DYNAMICS; MOLECULAR INTERACTION; STEREOCHEMISTRY;

EID: 0034646783     PISSN: 09476539     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1521-3765(20000417)6:8<1346::AID-CHEM1346>3.0.CO;2-O     Document Type: Article
Times cited : (20)

References (56)
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    • 0013348359 scopus 로고
    • In ref. [1] we added a statistical aspect to Kelvin's definition (L. Kelvin, Baltimore Lectures 1884, 436), in order to accommodate the chirality properties of random objects such as the DLAs. Some further clarifications are as follows: The ultimate test of whether an object, random or otherwise, is chiral, is Kelvin's test of non-superimposability with the mirror image. In the bulk of chemistry, that mirror image molecule is obtainable by realization of the synthetic procedure in an opposite enantiomeric route. Unlike chiral molecules, which are synthesized such that the final structure is known exactly, in random processes, the exact outcome is unknown a priori. Therefore, the realization towards an enantiomer of a random structure becomes problematic. One has then to distinguish between two types of realizations: One, which leads to the exact enantiomer, as in the case of synthesis of chiral molecules, and one which repeats the process towards an object with a different exact structure though with a similar shape. A distinction was therefore made between a virtual enantiomer and a natural enantiomer, for these two realizations. We use the term "virtual" for the first case, because repetition of the random synthetic process can never lead to the exact enantiomer. For each specific family of incidental random objects there is a minimal level of chirality (the "noise" level of chirality). This does not hold for the virtual enantiomer: It is obtained by strict rules of exact copying as in molecular synthesis, using, for instance, actual photocopying or a preset rule of exact duplication of each random step with its mirror image step, either simultaneously or consecutively. In this context we recall that the chirality measure we employ here, is based on the comparison of an object with its exact (virtual, in our case) enantiomer.
    • (1884) Baltimore Lectures , pp. 436
    • Kelvin, L.1
  • 27
    • 0002452767 scopus 로고    scopus 로고
    • Y. Pinto, Y. Salomon, D. Avnir, J. Math. Chem. 1998, 23, 13; Y. Pinto, H. Z. Hel-Ol, D. Avnir, J. Chem. Soc. Faraday Trans. 1996, 92, 2523.
    • (1998) J. Math. Chem. , vol.23 , pp. 13
    • Pinto, Y.1    Salomon, Y.2    Avnir, D.3
  • 35
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    • 0343361737 scopus 로고
    • (Eds.: I. Hargittai, C. A. Pickover), World Scientific, Singapore
    • L. A. Bursill, J. L. Rouse, A. Needham, in Spiral Symmetry (Eds.: I. Hargittai, C. A. Pickover), World Scientific, Singapore, 1992, p. 295.
    • (1992) Spiral Symmetry , pp. 295
    • Bursill, L.A.1    Rouse, J.L.2    Needham, A.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.