ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Crystallographic determination of artabsine

F. Hanic and J. Bauer

Slovak Academy of Sciences, Bratislava

Abstract: Optical consts., dimensions of the elementary cell, and area group of artabsine (I) are described. Crystals of I are short and long prisms and needles. From the goniometric measurements for both shapes the rhombic symmetry 222 and the relation of parameters: a:b:c = 0.5745:1.0:0.5576 were detd. With the immersed liquids in Na light the following values for n were detd.: nαNa = 1.4996; nβNa = 1.6126; nγNa = 1.6277; (γ - α) = 0.1281. The direction of optical axes is parallel to [100]. α,β, and γ are parallel to the c, a, and b axes, resp. The angle of optical axes: 2 VNa(exptl.) = 35°55'; 2 VNa(theoretical) = 36°12'. The sp. gr. ρ is 1.25. The orthorhombic elementary cell has the dimensions: a₀ = 9.22; b₀ = 15.94; c₀ = 8.86 A., and Ζ = 4. The area group is D₄₂-P₂₁₂₁₂₁.

Full paper in Portable Document Format: 117a418.pdf (in Slovak)

Chemical Papers 11 (7) 418–424 (1957)