Abstract
Two crystalline organic salts of diethylenetriamine (L): with 2,4,6-trinitrophenol (picric acid = Pic), anhydrous [(H2L)2+·(Pic−)2] (1), and with 3,5-dinitrosalicylic acid (3,5-dns), the hydrate [(H2L)2+ (3,5-dns)2−·H2O (2) have been prepared and characterized by X-ray diffraction analysis, IR, and elemental analysis. Both compounds 1 and 2 crystallize in the monoclinic space group P21/c, with Z = 4 in cells with a = 8.729(3) A, b = 12.437(4) A, c = 20.922(7) A, β = 98.154(4)o, V = 2,248.5(13) A3 (for 1) and a = 10.8722(7) A, b = 20.5909(19) A, c = 6.9758(4) A, β = 94.509(1)o, V = 1,556.8(2) A3 (for 2). The supramolecular architectures of both 1 and 2 involve extensive hydrogen bonding including O–H···N, N–H···O and N–H···N interactions as well as other non-covalent C–H···π and π···π interactions, giving three-dimensional framework structures. The crystal structures of the diethylenetriamine salts with picric acid and 3,5-dinitrosalicylic acid show extensive hydrogen bonding as well as C–H···π and π···π interections, giving three-dimensional networks.
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