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Crystal growth of a new pseudopolymorph modification of the polymer compound [CuC 12 H 8 N 4 O 2 ] n
Author(s) -
Prokofiev A. V.,
Dahlmann E.,
Ritter F.,
Assmus W.,
Margraf G.,
Wagner M.
Publication year - 2004
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200410286
Subject(s) - triclinic crystal system , monoclinic crystal system , van der waals force , hydrogen bond , crystallography , phase (matter) , polymer , chemistry , crystal (programming language) , crystal structure , molecule , materials science , organic chemistry , computer science , programming language
The growth of crystals of the coordination polymer [CuC 12 H 8 N 4 O 2 ] 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 250×100 μm 2 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. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)