Nikolay A. Puretskiy

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The molecule of the title compound, C 24 H 24 O 5 , has crystallographic twofold symmetry, with the central O atom lying on the rotation axis. The dihedral angle between the best planes of the benzene rings fused to the oxepine fragment is 38.5 (1). The dioxine ring adopts a twist form with the ethylene group C atoms deviating by 0.472 (5) and À0.248 (6) A(More)
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