
TY  - JOUR
A1  - Coxon, JM 
A1  - O'Connell, MJ 
A1  - Steel, PJ 
T1  - 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
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1985
VL  - 38
IS  - 8
SP  - 1223
EP  - 1231
KW  - 
UR  - https://doi.org/10.1071/CH9851223 
N2  - 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. 
ER  -

