{"title":"Special Issue in memory of Howard D Flack, who died suddenly in February 2017","authors":"David J. Watkin","doi":"10.1016/j.tetasy.2017.10.002","DOIUrl":null,"url":null,"abstract":"<div><p>Howard Flack made significant contributions to many branches of crystallography (<em>J. Appl. Cryst</em>. <strong>2017</strong>, 50, 666–667), but he was probably best known for his derivation of an expression for the robust determination of the absolute structure of crystals, and hence of the absolute configuration of the molecules from which they were made (<em>Acta Cryst</em>. <strong>1983</strong>, A39, 876–881). This expression included a parameter which Flack called ‘<em>x</em>’, but which the rest of the world called ‘<em>The Flack Parameter</em>’.</p></div>","PeriodicalId":22237,"journal":{"name":"Tetrahedron, asymmetry","volume":"28 10","pages":"Pages 1189-1191"},"PeriodicalIF":0.0000,"publicationDate":"2017-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.tetasy.2017.10.002","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tetrahedron, asymmetry","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0957416617304548","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Chemistry","Score":null,"Total":0}
引用次数: 2
Abstract
Howard Flack made significant contributions to many branches of crystallography (J. Appl. Cryst. 2017, 50, 666–667), but he was probably best known for his derivation of an expression for the robust determination of the absolute structure of crystals, and hence of the absolute configuration of the molecules from which they were made (Acta Cryst. 1983, A39, 876–881). This expression included a parameter which Flack called ‘x’, but which the rest of the world called ‘The Flack Parameter’.
期刊介绍：
Cessation. Tetrahedron: Asymmetry presents experimental or theoretical research results of outstanding significance and timeliness on asymmetry in organic, inorganic, organometallic and physical chemistry, as well as its application to related disciplines, especially bio-organic chemistry.
The journal publishes critical reviews, original research articles and preliminary communications dealing with all aspects of the chemical, physical and theoretical properties of non-racemic organic and inorganic materials and processes. Topics relevant to the journal include: the physico-chemical and biological properties of enantiomers; strategies and methodologies of asymmetric synthesis; resolution; chirality recognition and enhancement; analytical techniques for assessing enantiomeric purity and the unambiguous determination of absolute configuration; and molecular graphics and modelling methods for interpreting and predicting asymmetric phenomena. Papers describing the synthesis or properties of non-racemic molecules will be required to include a separate statement in the form of a Stereochemistry Abstract, for publication in the same issue, of the criteria used for the assignment of configuration and enantiomeric purity.
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