986 resultados para 31.15.Ar
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"1.12.1884 Julius Wallach geb. 30.5.1859. pens. 31.12.1927"
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"25.98.1884. Alfred Timme geb. 9.12.1860. pens. 31.12.1927"
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"1.1.1888. Josef Weismann geb. 20.10.1857. pens. 31.12.1927"
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"15.4.1889 Georg Heinrich geb. 12.5.1863. pens. 31.12.1927"
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"25.7.1891 Friedrich Brandes geb. 11.4.1867 pens. 31.12.1927"
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"15.11.1893 Heinrich Ruhrmann geb. 1.1.1863 pens. 31.12.1927"
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"2.12.1895 Richard Mueller geb. 1.3.1853 pens. 31.12.1927"
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The crystal and molecular structure of the title compound (1) has been determined by the heavy-atom method from 1038 observed three-dimensional photographic data. Crystals are orthorhombic, with a = 20.07 ± 0.02, b= 10.05 ± 0.02, c= 7.31 ± 0.01 Å, space group P212121, with Z= 4. The structure was refined by block diagonal leastsquares to R 0.099. The conformation of the norbornane moiety is discussed. The seven-membered ring portion of the molecule adopts an approximate chair conformation. The packing of the molecules in the crystal is mainly a consequence of van der Waals interactions.