Helical self-assembly of substituted benzoic acids: influence of weaker X...X and C-H...X interactions.

Helical self-assembly of substituted benzoic acids: influence of weaker X...X and C-H...X interactions. Research Abstract Details 

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Helical self-assembly of substituted benzoic acids: influence of weaker X...X and C-H...X interactions. Abstract Text:

J Narasimha Moorthy,R Natarajan,Prasenjit Mal,P Venugopalan,

The X-ray crystal packing analyses of the sterically encumbered halogen-substituted benzene carboxylic acids 1-4 reveal a novel and unprecedented crystal packing in that the association of the carboxyl groups through O-H...O bonds results in the generation of a helix along the 41-screw axis. Such an organization of the acids is shown convincingly to be a result of the close packing, which exploits the weaker X...X and C-H...X interactions in conjunction with the stronger O-H...O hydrogen bonds. In contrast, the chloro- and bromo-substituted durene carboxylic acids 6 and 7 exhibit a pattern that is akin to tape/ribbon involving the centrosymmetric-dimer motif and X...X short intermolecular interactions. The structural investigations demonstrate the ability of the weaker interactions in modifying the supposedly "robust" centrosymmetric-dimer motif of the carboxyl groups in a decisive manner.

Helical self-assembly of substituted benzoic acids: influence of weaker X...X and C-H...X interactions. Publishing Authors By Initials

JN Moorthy,R Natarajan,P Mal,P Venugopalan,

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Helical self-assembly of substituted benzoic acids: influence of weaker X...X and C-H...X interactions. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of the American Chemical Society

VOLUME: 124

Page Numbers: 6530-1

Journal Abbreviation: J. Am. Chem. Soc.

ISSN: 0002-7863

DAY: 12

MONTH: Jun

YEAR: 2002

Helical self-assembly of substituted benzoic acids: influence of weaker X...X and C-H...X interactions. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Helical self-assembly of substituted benzoic acids: influence of weaker X...X and C-H...X interactions.

AFFILIATION: Department of Chemistry, Indian Institute of Technology, Kanpur 208 016, India.

Country: United States

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MEDLINETA: J Am Chem Soc

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