Abstract
X-Ray analyses of the crystals of 5-nitrofurfural semicarbazone were carried out and the following results obtained:
1) The crystals belong to the monoclinic system and possess a cleavage. The lattice constants are as follows: a0=17.21Å, b0=7.91Å, c0=8.03Å, β=129°18′, ρ=1.546.
2) The space group of these crystals is C2h2-P21/m with four molecules per unit cell.
3) The molecule is approximately planar and is assumed to be distributed two by two approximately parallel to the reflection plane in a space surrounded by such a plane in an unit cell.
