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  • Title: (1RS,2RS)-N,N'-Bis(4-nitrophenylmethylene)cyclohexane-1,2-diamine: complex sheets built from C-H...O and C-H...pi(arene) hydrogen bonds.
    Author: Glidewell C, Low JN, Skakle JM, Wardell JL.
    Journal: Acta Crystallogr C; 2005 Sep; 61(Pt 9):o551-4. PubMed ID: 16143778.
    Abstract:
    The racemic title compound, C20H20N4O4, crystallizes with Z'=2 in the space group P2(1)/c. Each independent molecule exhibits approximate twofold rotation symmetry, but conformational differences between the molecules preclude any higher symmetry. The molecules are linked into complex sheets by a combination of four C-H...O hydrogen bonds and two C-H...pi(arene) hydrogen bonds.
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