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- W2059547881 abstract "The crystal structure of a photodimer of l,4-epoxy-1,4-dihydronaphthalene, with empirical formula C_(20)H_(16)O_2, has been determined by the application of direct methods. Three-dimensional data were collected on a Datex-automated General Electric diffractometer to a minimum spacing of 1·0 A. The coordinates of all atoms in the molecule, the isotropic temperature factors for the hydrogen atoms, and the anisotropic temperature factors for the other atoms were refined by the method of least squares.The final R index was 0·027. The crystals are orthorhombic, space group Pcɑ2_1 with ɑ = 16-52, b = 7·975 and c= 10·58 A. Of four possible configurations, the molecule of the photodimer has the exotrans-exo configuration. Despite the lack of a center of symmetry in the space group, the molecule is centrosymmetric almost within experimental error." @default.
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- W2059547881 date "1970-08-15" @default.
- W2059547881 modified "2023-09-23" @default.
- W2059547881 title "The crystal structure of a photodimer of 1,4-epoxy-1,4-dihydronaphthalene" @default.
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- W2059547881 doi "https://doi.org/10.1107/s0567740870003771" @default.
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