Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-9178
Cozzi, F; Annunziata, R; Benaglia, M; Baldridge, K K; Aguirre, G; Estrada, J; Sritana-Anant, Y; Siegel, J S (2008). Through-space interactions between parallel-offset arenes at the van der Waals distance: 1,8-diarylbiphenylene syntheses, structure and QM computations. Physical Chemistry Chemical Physics (PCCP), 10(19):2686-2694.
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A model for studying polar-pi interactions between arenes spaced at van der Waals distances is developed on the basis of peri-diarylbiphenylenes. A set of 1,8-diarylbiphenylenes is synthesized comprising two Hammett series, one with reference to mesityl ring interactions and the other with reference to pentafluorophenyl ring interactions. X-Ray crystal structures of several derivatives are determined. Barriers to rotation of the probe aryl ring are derived from dynamic NMR data and show a trend for the mesityl reference series (DeltaG(not equal) vs. sigma(0)). The model is also used as a test for comparison of modern density functional methods, including B3LYP, M06-2X and BMK functionals; dispersive effects are seen to be an important factor in the proper theoretical treatment of arene interactions.
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|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Department of Chemistry|
|Deposited On:||16 Jan 2009 14:27|
|Last Modified:||05 Jun 2014 13:09|
|Publisher:||Royal Society of Chemistry|
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