The yellow, microcrystalline compound [Cu(pymo)] (Hpymo=2- hydroxypyrimidine) has been characterized with the newly emerging technique of ab initio X-ray powder diffraction. A unique and unprecedented crystal phase containing cyclic oligomers and infinite helical polymers (see picture) of the same monomeric fragment is selectively formed upon reaction of [Cu(CH3CN)4][BF4] and Hpymo with NEt3.
Unique formation of a crystal phase containing cyclic oligomers and helical polymers of the same monomeric fragment / N. Masciocchi, G. A. Ardizzoia, G. LaMonica, A. Maspero, A. Sironi. - In: ANGEWANDTE CHEMIE. INTERNATIONAL EDITION. - ISSN 1433-7851. - 37:24(1998), pp. 3366-3369.
Unique formation of a crystal phase containing cyclic oligomers and helical polymers of the same monomeric fragment
A. SironiUltimo
1998
Abstract
The yellow, microcrystalline compound [Cu(pymo)] (Hpymo=2- hydroxypyrimidine) has been characterized with the newly emerging technique of ab initio X-ray powder diffraction. A unique and unprecedented crystal phase containing cyclic oligomers and infinite helical polymers (see picture) of the same monomeric fragment is selectively formed upon reaction of [Cu(CH3CN)4][BF4] and Hpymo with NEt3.
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