1.
Acta Crystallogr Sect E Struct Rep Online
; 64(Pt 2): o492, 2008 Jan 23.
Artigo
em Inglês
| MEDLINE
| ID: mdl-21201515
RESUMO
In the title compound, C(16)H(12)O(2), the non-H atoms are coplanar with a mean r.m.s. deviation of 0.0260â (2)â Å. The deviations of the bond angles from normal values at the indenyl junction C atom and the indenyl bridgehead C atom nearest the junction are imposed by the five-membered ring geometry. Due to conjugation, the single bond linking the two ring systems [1.455â (3)â Å] is significantly shorter than the formal single bonds in the five-membered carbocyclic ring [1.500â (3) and 1.489â (3)â Å].