Designing Elastic Organic Crystals: Highly Flexible Polyhalogenated N-Benzylideneanilines

Ghosh, Soumyajit and Mishra, Manish Kumar and Kadambi, Sourabh B and Ramamurty, Upadrasta and Desiraju, Gautam R (2015) Designing Elastic Organic Crystals: Highly Flexible Polyhalogenated N-Benzylideneanilines. In: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 54 (9). pp. 2674-2678.

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Abstract

The intermolecular interactions and structural features in crystals of seven halogenated N-benzylideneanilines (Schiff bases), all of which exhibit remarkable flexibility, were examined to identify the common packing features that are the raison d'etre for the observed elasticity. The following two features, in part related, were identified as essential to obtain elastic organic crystals: 1)A multitude of weak and dispersive interactions, including halogen bonds, which may act as structural buffers for deformation through easy rupture and reformation during bending; and 2)corrugated packing patterns that would get interlocked and, in the process, prevent long-range sliding of molecular planes.

Item Type:	Journal Article
Publication:	ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Publisher:	WILEY-V C H VERLAG GMBH
Additional Information:	Copy right for this article belongs to the WILEY-V C H VERLAG GMBH, BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
Keywords:	crystal engineering; elasticity; halogen bonds; mechanical properties; nanoindentation
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	20 Apr 2015 07:10
Last Modified:	20 Apr 2015 07:10
URI:	http://eprints.iisc.ac.in/id/eprint/51238

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