rac-11-t-Butoxy-1,4-dihydro-1,4-methanoanthracene:A two-dimensional framework structure built from C-H…O and C-H…πhydrogen bonds |
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Authors: | Hsing Yang Tsai Ming Hui Luo Ming Jen Chang Tzu Chien Fang Kew Yu Chen |
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Institution: | Department of Chemical Engineering , Feng Chia University, 40724 Taichung, Taiwan |
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Abstract: | The title compound rac-11-t-butoxy-l,4-dihydro-l,4-methanoanthracene(C19H20O,Mr = 264.35) has been synthesized and characterized by FT-IR,’H NMR,HRMS spectra and single-crystal X-ray diffraction.The crystal belongs to monoclinic,space group P21/n,with a = 13.5240(10),b = 8.3453(6),c = 13.9604(9) ,β= 100.0190(10)°.The structure of the title compound comprises a norbomene unit with a t-butoxy group,having a naphthalene ring fused on one side.The naphthalene is essentially planar with a maximum deviation of 0.032(2) for atom C(3).In the crystal,inversion-related molecules are linked by pairs of C-H…O hydrogen bonds,forming a cyclic dimer with R22(16) graph-set motif.The C-H…πinteractions are also observed,linking the molecules into a continuous two-dimensional framework structure. |
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Keywords: | X-ray diffraction Norbornene derivatives Crystal structure Puckering parameters |
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