Acta Cryst. (2002). E58, o67-o68  [ doi:10.1107/S160053680102116X ]

Spiro[1,1a,6,6a-Tetrahydrocyclopropa[a]indene-1,1'-2',3'-dihydro-1'H-indene]

J. Jovanovic, W. Elling, M. Schürmann, H. Preut and M. Spiteller

Abstract: In the crystal structure of the title compound, C₁₈H₁₆, the two nearly planar halves of the molecule [maximum deviations from planarity 0.0324  (13) and 0.0441  (11)  Å] are connected via two C-C bonds which are formed between one C atom in the five-membered ring of one half and two neighbouring C atoms in the five-membered ring of the other half, forming a central three-membered C ring with C-C distances between the rings of 1.5321  (19) and 1.5040  (18)  Å. The dihedral angle between the least-squares planes through the non-H atoms of the molecule halves is 86.56  (3)°.

Online 14 December 2001

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