Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.12202/9810
Title: | Crystals of benzamide, the first polymorphous molecular compound, are helicoidal. |
Authors: | Drori, Ran Shtukenberg, Alexander G. Sturm, Elena V. Vidavsky, Netta Haddad, Asaf Zheng, Jason Estroff, Lara A. Weissman, Haim Wolf, Sharon G. Shimoni, Eyal Li, Chao Fellah, Noalle Efrati, Efi Kahr, Bart 000-0002-6436-5602 |
Keywords: | molecules Benzamide molecular crystals crystals X-Ray powder diffraction disorder internal stress polymorphism twisted crystals |
Issue Date: | 2020 |
Publisher: | Wiley |
Citation: | Shtukenberg, A.G., Drori R., Sturm, E. V., Vidavsky, N., Haddad, A., Zheng, J., Estroff, L. A., Weissman, H., Wolf, S. G., Shimoni, E., Li, C., Fellah, N., Efrati, E. & Kahr, B. (2020). Crystals of benzamide, the first polymorphous molecular compound, are helicoidal. Angewandte Chemie International Edition, doi:10.1002/anie.202005738 |
Series/Report no.: | Angewandte Chemie International Edition; |
Abstract: | •The growth of spontaneously twisted crystals is a common but poorly understood phenomenon. An analysis of the formation of twisted crystals of a metastable benzamide polymorph (form II) crystallizing from highly supersaturated aqueous and ethanol solutions is given here. Benzamide, the first polymorphic molecular crystal reported (1832), would have been the first helicoidal crystal observed had the original authors undertaken an analysis by light microscopy. Polymorphism and twisting frequently concur as they are both associated with high thermodynamic driving forces for crystallization. Optical and electron microscopies as well as electron and powder X‐ray diffraction reveal a complex lamellar structure of benzamide form II needle‐like crystals. The internal stress produced by the overgrowth of lamellae is shown to be able to create a twist moment that is responsible for the observed non‐classical morphologies. [ABSTRACT FROM AUTHOR] •Copyright of Angewandte Chemie is the property of John Wiley & Sons, Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
Description: | Scholarly article |
URI: | https://ezproxy.yu.edu/login?url=https://search.ebscohost.com/login.aspx?direct=true&AuthType=ip,sso&db=a9h&AN=145043859&site=eds-live&scope=site https://hdl.handle.net/20.500.12202/9810 |
ISSN: | 0044-8249 |
Appears in Collections: | Stern College for Women -- Faculty Publications |
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