R. Artali, G. Bombieri, C. C. Carvalho
Feb 1, 2002
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0
Influential Citations
2
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Journal
Zeitschrift für Kristallographie - Crystalline Materials
Abstract
Abstract The synthesis and the X-ray crystal and molecular structure of the N,N'-Dimethylurea picrate [C3H9N2+ C6H2N3O7-] are reported. It crystallizes in the triclinic system, space group P1̅ with a = 6.882(7), b = 9.050(2), c = 11.149(12) , α = 97.54(13), β = 104.02(9), γ = 96.78(14), V = 659.7(2)Å3, Z = 2, Dcalc = 1.60 g/cm3.The structure consists of infinite layers of anions alternating with cations linked together through an extensive hydrogen bonding involving most of the potential donors and acceptors. Semiempirical calculations for the picrate complex reproduce well the observed geometry.