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Crystal structure of m-nitrobenzoic anhydride (1990)

Główka, Marek L. ; Iwanicka, Iwona ; Król, Izabela

Springer

Journal of chemical crystallography 20 (1990), S. 519-523

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ISSN: 1572-8854

Source: Springer Online Journal Archives 1860-2000

Topics: Geosciences , Physics

Notes: Abstract The title compound (C14H8N2O7,M r =306.2) crystallizes in the orthorhombic space group Pbca witha=6.962(1).b=24.688(1), andc=15.890(1)Å,V=2731.0 Å3,D x =1.489 g·cm−3 forZ=8,μ=0.98 mm−1,F(000)=1296,T=293 K. FinalR=0.053 for 1873 observed reflections. The structure was solved by direct methods. Approximately planar molecules lie perpendicular to the [100] direction and show partial stacking. The structure is the first example of a symmetric anhydride which does not retain the symmetry in the crystal state. The two independent nitro groups twist out of the ring planes by 10.5 and 14.8°, respectively.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01221891

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