
%0 Journal Article
%A Coxon, JM 
%A O'Connell, MJ 
%A Steel, PJ 
%T Phenyl Ring Orientations in Two Tetracyclone Adducts; X-Ray Crystal Structures of <i>exo</i>-and <i>endo</i>-1,7,8,9-Tetraphenyltricyclo-[5.2.1.0<sup>2,6</sup>]deca-3,8-dien-10-ones
%J Australian Journal of Chemistry
%D 1985/08/01
%V 38
%N 8
%P 1223-1231
%K 
%R https://doi.org/10.1071/CH9851223
%U https://www.publish.csiro.au/paper/CH9851223 
%X The crystal structures of exo- and endo- 1,7,8,9- tetraphenyltricyclo [5.2.1.02,6]deca-3,8-dien-10-one (8) and (9) are reported. Crystals of the exo adduct (8) are triclinic: P&#299; , a 9.863(2), b 10.738(2), c 13.634(2) &#506;, &#945; 82.90(1), &#946; 68.87(1), &#947; 66.87(1)&#176;, Z 2; crystals of the endo adduct (9) are monoclinic: P21/c, a 11.610(1), b 7.862(2), c 27.675(3) &#506;, &#946; 100.223(9)&#176;, Z 4. The structures were refined to R 0.039 and 0.049 respectively. The relative orientations of the four phenyl rings in the two structures are similar. 
