Study of weak interactions in two 1,2-diaryl-1,2,3,4-tetrahydroisoquinoline derivatives: influence of ‘‘organic fluorine’’ in crystal packing

Choudhury, AR and Nagarajan, K and Row, Guru TN (2003) Study of weak interactions in two 1,2-diaryl-1,2,3,4-tetrahydroisoquinoline derivatives: influence of ‘‘organic fluorine’’ in crystal packing. In: Crystal Engineering, 6 (3). pp. 145-152.

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Abstract

The compounds 1-(2-fluorophenyl)-6,7-dimethoxy-2-phenyl-1,2,3,4-tetrahydroisoquinoline (1) and 5-(2- fluorophenyl)-6-phenyl-5,6,7,8-tetrahydro dioxolo[4,5-g]isoquinoline (2) have been studied via single crystal X-ray diffraction at 100.0(2) K. Compound 1 crystallizes in the space group $P\bar{1}$ with two molecules in the asymmetric unit (Z=4), whereas compound 2 crystallizes in the space group $P2_1/n$. The two molecules of 1 in the asymmetric unit offer different modes of interactions via C–H...F and C–H...O resulting in altered molecular conformations. Compound 2 essentially packs via C–H...F interaction.

Item Type:	Journal Article
Publication:	Crystal Engineering
Publisher:	Elsevier Ltd
Additional Information:	Copyright of this article belongs to Elsevier Ltd.
Keywords:	Weak interaction;Hydrogen bond;Conformation;Packing;Dimer
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	27 Nov 2007
Last Modified:	19 Sep 2010 04:25
URI:	http://eprints.iisc.ac.in/id/eprint/6175

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