
TY  - JOUR
A1  - Becker, H 
A1  - Hansen, L 
A1  - Skelton, BW 
A1  - White, AH 
T1  - (<i>E</i>)-1-(9-Anthryl)-2-(10-methyl-9-anthryl)ethene: Molecular Structure and Spectroscopic Properties
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1985
VL  - 38
IS  - 5
SP  - 809
EP  - 815
KW  - 
UR  - https://doi.org/10.1071/CH9850809 
N2  - (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. 
ER  -

