
%0 Journal Article
%A Becker, H 
%A Hansen, L 
%A Skelton, BW 
%A White, AH 
%T (<i>E</i>)-1-(9-Anthryl)-2-(10-methyl-9-anthryl)ethene: Molecular Structure and Spectroscopic Properties
%J Australian Journal of Chemistry
%D 1985/05/01
%V 38
%N 5
%P 809-815
%K 
%R https://doi.org/10.1071/CH9850809
%U https://www.publish.csiro.au/paper/CH9850809 
%X (E)-1-(9-Anthryl)-2-(10-methyl-9-anthryl) ethelle has been synthesized from 10-methyl-9-anthraldehyde and (9-anthrylmethyl) triphenylphosphonium bromide, and its crystal structure has been determined by X-ray diffraction. Its molecular geometry was found to be such as to have the planes of the two anthracene moieties form an angle of 70.8&#176;, the plane of the ethene bond bring twisted out of the planes of the anthracenes by an angle of about 55&#176;. The intermolecular arrangement of parallel adjacent molecules in the crystal lattice is characterized by shifts about the short and long axes of the anthracenes. The excimer-like crystal fluorescence is attributed to the interplanar distance of 3.5 &#506; between anthracene &#960;- systems in parallel adjacent molecules. Crystals are triclinic, P&#299; , a 12.95(1), b 9.316(6), c 9.098(9) &#506;, &#945; 86.17(7), &#946; 72.26(7), &#947; 74.61(6)&#176;,Z 2; R was 0.054 for 1059 independent 'observed' reflections. 
