Structure of 3,6,10,12-tetramethylbenzofuro[2,3-b]benzofuran

Hariharan, Meena ; Rajan, S. S. ; Vijayalakshmi, J. ; Srinivasan, R. ; Guru Row, T. N. (1990) Structure of 3,6,10,12-tetramethylbenzofuro[2,3-b]benzofuran Acta Crystallographica Section C, 46 . pp. 445-447. ISSN 0108-2701

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C18H18O2, Mr=266.3, monoclinic, P21/n, a=9.459(2), b=13.220(2), c=11.712(2)Å, β=98.92(2)°, V=1446.8(5)Å3, Dm=1.24(1), Dx=1.22gcm-3, Z=4, λ(MoKα)=0.7107Å, μ=0.73cm-1, T=293K, F(000)=568, R=0.077 and wR=0.077 for 1250 reflections with F≥3σ(F). The furan rings are in envelope conformation with an angle of 66.5(3)° between them.

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