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Crystal structure and features of 3',8-di-benzyl-idene-4a,5,6,7,8,8a-hexa-hydro-2'H-spiro-[chromene-2,1'-cyclo-hexa-n]-2'-one.

ABSTRACT: The synthesis and crystal structure of the title compound, C28H28O2, are reported. The C=C-C-C torsion angles in the phenyl-methyl-idene units are 166.6?(3) and -48.0?(4)°. In the crystal, mol-ecules form a three-dimensional network by means of weak C-H?O hydrogen bonds. The most important contributions to the crystal structure are the H?H inter-actions (68.8%), while the H?O contacts account for 4.5%.

SUBMITTER: Anis'kov A 

PROVIDER: S-EPMC5683477 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature

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Crystal structure and features of 3',8-di-benzyl-idene-4a,5,6,7,8,8a-hexa-hydro-2'<i>H</i>-spiro-[chromene-2,1'-cyclo-hexa-n]-2'-one.

Anis'kov Alexander A   Grinev Vyacheslav V   Klochkova Irina I  

Acta crystallographica. Section E, Crystallographic communications 20171006 Pt 11

The synthesis and crystal structure of the title compound, C<sub>28</sub>H<sub>28</sub>O<sub>2</sub>, are reported. The C=C-C-C torsion angles in the phenyl-methyl-idene units are 166.6 (3) and -48.0 (4)°. In the crystal, mol-ecules form a three-dimensional network by means of weak C-H⋯O hydrogen bonds. The most important contributions to the crystal structure are the H⋯H inter-actions (68.8%), while the H⋯O contacts account for 4.5%. ...[more]

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