K. Iida, I. Oonishi, A. Nakahara
Aug 1, 1970
Citations
0
Influential Citations
33
Citations
Journal
Bulletin of the Chemical Society of Japan
Abstract
The crystal structure of bis-(2-hydroxyacetophenone) trimethylenediiminocopper(II), [Cu-(hapt)], has been determined on the basis of the X-ray diffraction data. The crystals are monoclinic. The cell dimensions are: a=17.746, b=9.467, c=10.646 A, and β=114.06°. The space group is Cc, with four formula units in the unit cell. The structure has been refined from threedimensional data by the least-squares method with anisotropic temperature factors to an R-value of 0.093. The copper atom is four-covalent, with the two planar 2-hydroxyacetophenone groups oriented so as to give a flattened tetrahedral co-ordination geometry. The six-membered coppertrimethylenediamine ring takes a “twisted boat” configuration. The Cu–O bonds are 1.88 and 1.89 A in length, while the Cu–N bonds are 1.94 and 1.97 A. The angle between the mean planes of the 2-hydroxyacetophenone moieties is 46.2°.