Crystal structures of three N-aryl-2,2,2-tribromoacetamides

Sreenivasa, S. and Naveen, S. and Lokanath, N. K. and Supriya, G. M. and Lakshmikantha, H. N. and Suchetan, P. A. (2015) Crystal structures of three N-aryl-2,2,2-tribromoacetamides. ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, 71 (9). 1048+. ISSN 2056-9890

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Three N-aryl-2,2,2-tribromoacetamides, namely, 2,2,2-tribromo-N-(2-fluorophenyl) acetamide, C8H5Br3FNO, (I), 2,2,2-tribromo-N-3-(trifluoromethyl)phenyl] acetamide, C9H5Br3F3NO, (II) and 2,2,2-tribromo-N-(4-fluorophenyl) acetamide, C8H5Br3FNO, (III) were synthesized and their crystal structures were analysed. In the crystal structure of (I), C-Br pi aryl interactions connect the molecules into dimers, which in turn are connected via Br Br contacts 3.6519 (12) A ], leading to the formation of a onedimensional ladder-type architecture. The crystal structure of (II) features chains linked by N-H O and C-H O hydrogen bonds. Two such chains are interlinked to form ribbons through Br Br 3.6589 (1) angstrom] and Br F 3.0290 (1) A ] interactions. C-Br pi aryl and C-F pi aryl interactions between the ribbons extend the supramolecular architecture of (II) from one dimension to two. In (III), the molecules are connected into R2 2 (8) dimers via pairs of CH F interactions and these dimers form ribbons through Br Br 3.5253 (1) angstrom] contacts. The ribbons are further interlinked into columns via C-Br O C contacts, forming a two-dimensional architecture.

Item Type: Article
Uncontrolled Keywords: crystal structures; bromine center dot center dot center dot bromine contact; bromine center dot center dot center dot fluorine contact; N-aryl-tribromoacetamides
Subjects: D Physical Science > Physics
Divisions: Department of > Physics
Depositing User: Users 19 not found.
Date Deposited: 31 May 2019 05:24
Last Modified: 18 Sep 2019 07:01

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