Supramolecular Hierarchy among Halogen-Bond Donors
作者:Christer B. Aakeröy、Michele Baldrighi、John Desper、Pierangelo Metrangolo、Giuseppe Resnati
DOI:10.1002/chem.201302162
日期:2013.11.25
halogen‐bond (XB) donors. The molecular electrostatic potential surfaces of six XB donors were evaluated, which allowed for a charge‐based ranking. Each molecule was then co‐crystallized with 21 XB acceptors and the results have made it possible to map out the supramolecular landscape describing the competition between I/Br–ethynyl donors, perfluorinated I/Br donors, and I/Br–phenyl based donors. The results
Sladkov,A.M. et al., Journal of Organic Chemistry USSR (English Translation), 1965, vol. 1, p. 406 - 411
作者:Sladkov,A.M. et al.
DOI:——
日期:——
PHOTO-ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY ELEMENT
申请人:TAMURA NORIO
公开号:US20070232780A1
公开(公告)日:2007-10-04
[Object] To obtain an alignment film having excellent alignment stability of a liquid crystal and a high voltage holding ratio by application of linearly polarized light to a polyamic acid having a specific structure and then imidization under heat. [Solving Means] A photo-alignment film is obtained by: applying a polyamic acid solution on a substrate, where the polyamic acid contains, in its main chain, at least a group having unsaturated groups having 1 to 3 carbon-carbon double bonds or 1 to 4 triple bonds; vaporizing a solvent from a film formed; applying linearly polarized light to the film after the vaporization of the solvent; and then heating the film to imidize the polyamic acid.