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Volumn 46, Issue 44, 2007, Pages 8342-8356

Crystal engineering: A holistic view

Author keywords

Crystal engineering; Hydrogen bonds; Intermolecular interactions; Polymorphism; Supramolecular chemistry

Indexed keywords

CRYSTAL ENGINEERING; HYDROGEN BONDS; MOLECULAR INTERACTIONS; POLYMORPHISM; SUPRAMOLECULAR CHEMISTRY; X RAY CRYSTALLOGRAPHY;

EID: 36148966165     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200700534     Document Type: Review
Times cited : (1296)

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    • The less valid this assumption, the less useful is the concept of the supramolecular synthon in crystal engineering. It is recognized that any crystal structure is complex, and that its analysis into smaller units is, of necessity, a simplification. The question, however, is whether or not a particular simplification affects one's comprehension of a structure to such an extent that one is unable to go back in a synthetic step and regenerate a crystal structure of a related molecule. Alternatively, if the simplification is very slight, there is no real advantage gained in invoking the synthon. Accordingly, the supramolecular synthon approach to crystal engineering hinges on whether or not a particular simplification (structure to synthon) is substantial enough to allow its easy use in a subsequent synthetic step synthon to structure, but not so excessive that essential attributes of a structure are lost in the process of simplification, rendering subsequent crystal engineering unrelia
    • The less valid this assumption, the less useful is the concept of the supramolecular synthon in crystal engineering. It is recognized that any crystal structure is complex, and that its analysis into smaller units is, of necessity, a simplification. The question, however, is whether or not a particular simplification affects one's comprehension of a structure to such an extent that one is unable to go back in a synthetic step and regenerate a crystal structure of a related molecule. Alternatively, if the simplification is very slight, there is no real advantage gained in invoking the synthon. Accordingly, the supramolecular synthon approach to crystal engineering hinges on whether or not a particular simplification (structure to synthon) is substantial enough to allow its easy use in a subsequent synthetic step (synthon to structure), but not so excessive that essential attributes of a structure are lost in the process of simplification, rendering subsequent crystal engineering unreliable.
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    • T. Gelbrich, M. B. Hursthouse, CrystEngComm 2005, 7, 324-336. These authors distinguish between supramolecular synthons and their so-called supramolecular constructs and state that synthons contain well-defined directional interactions as opposed to constructs. My original definition of the term supramolecular synthon (reference [30]) neither contains nor implies any such limitation. The term synthon includes all types of molecular recognition. Given in my 1995 review are examples of synthons which contain only van der Waals and other largely nondirectional interactions (phenyl⋯phenyl herringbone and stacking, alkyl⋯alkyl),
    • T. Gelbrich, M. B. Hursthouse, CrystEngComm 2005, 7, 324-336. These authors distinguish between supramolecular synthons and their so-called "supramolecular constructs" and state that synthons contain well-defined directional interactions as opposed to constructs. My original definition of the term "supramolecular synthon" (reference [30]) neither contains nor implies any such limitation. The term "synthon" includes all types of molecular recognition. Given in my 1995 review are examples of synthons which contain only van der Waals and other largely nondirectional interactions (phenyl⋯phenyl herringbone and stacking, alkyl⋯alkyl),
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    • see also: M. Gdaniec, CrystEngComm 2007, 9, 286-288. However, we stand by our result on the isolated trimer polymorph of pentafluorophenol, and will submit our rebuttal shortly (D. Bläser, M. T. Kirchner, R. Boese, G. R. Desiraju, in preparation).
    • see also: M. Gdaniec, CrystEngComm 2007, 9, 286-288. However, we stand by our result on the isolated trimer polymorph of pentafluorophenol, and will submit our rebuttal shortly (D. Bläser, M. T. Kirchner, R. Boese, G. R. Desiraju, in preparation).
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.