Crystal growth of a new pseudopolymorph modification of the polymer compound [CuC12H8N4O2]n by A. V. Prokofiev, E. Dahlmann, F. Ritter, W. Assmus, G. Margraf, and M. Wagner

Crystal Research and Technology

Cryst. Res. Technol. 39, 1014 (2004) - Abstract -

Crystal growth of a new pseudopolymorph modification of the polymer compound [CuC₁₂H₈N₄O₂]_n

A. V. Prokofiev, E. Dahlmann, F. Ritter, W. Assmus, G. Margraf*, and M. Wagner*

Physikalisches Institut, J.W.Goethe Universität, 60054 Frankfurt a.M., Germany
*Institut für Anorganische Chemie, J.W.Goethe Universität, 60439 Frankfurt a.M., Germany

Keywords	crystal morphology, crystal structure, polymers, magnetic materials
PACS	61.10.Nz, 81.05.Lg, 81.10.Aj, 81.10.Dn, 82.35.+t
DOI	10.1002/crat.200410286

The growth of crystals of the coordination polymer [CuC₁₂H₈N₄O₂]_n with one-dimensional magnetic properties is reported. Several approaches have been proposed and tested in order to diminish the growth anisotropy and plate-like crystals of an area measuring up to 250x100 μm² were grown. The structure and the composition of the crystals are slightly modified with respect to that of earlier synthesized powder. Instead of the water free triclinic phase a monoclinic phase, intercalated by water molecules, forms. In the new modification, the polymer chain layers are bound together by a network of hydrogen bonds, which are stronger than the usual Van der Waals interactions in the triclinic phase. The crystal morphology is plate-like instead of the earlier obtained spherulitic needles.

The full text of this paper in pdf-Format:

If you have come directly to this page, click this symbol

to go to the CRT homepage.