Cozzi, Franco published the artcileThrough-space interactions between parallel-offset arenes at the van der Waals distance: 1,8-diarylbiphenylene syntheses, structure and QM computations, SDS of cas: 209919-30-2, the publication is Physical Chemistry Chemical Physics (2008), 10(19), 2686-2694, database is CAplus and MEDLINE.
A model for studying polar-π 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 (ΔG≠vs. σ°). The model is also used as a test for comparison of modern d. functional methods, including B3LYP, M06-2X and BMK functionals; dispersive effects are seen to be an important factor in the proper theor. treatment of arene interactions.
Physical Chemistry Chemical Physics published new progress about 209919-30-2. 209919-30-2 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Boronic Acids,Boronic acid and ester, name is 4-Chloro-2-methylphenylboronic acid, and the molecular formula is C7H8BClO2, SDS of cas: 209919-30-2.
Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics