Synthesis of different CuII networks based on di-2-pyridylketone and 1,2,4,5-benzenetetracarboxylc acid (H4bta)

by / Tuesday, 18 July 2017 / Published in

Synthesis of different CuII networks based on di-2-pyridylketone and 1,2,4,5-benzenetetracarboxylc acid (H4bta)


Published in: International School of Crystallography,
2016/05/30
Publisher URL:
Authors:
Laura Bravo García Gotzone Barandika Begoña Bazán Miren-Karmele Urtiaga María Isabel Arriortua
Abstract:

Solid Coordination Frameworks (SCFs) are crystalline materials based on connections between metal ions through different ligands. These materials are typically obtained from ´one-pot´ synthesis, hardly ever by post- synthetic modifications. As single crystals are usually isolated for X-ray diffraction analysis, the importance of crystal growth is worth noticing. While in the crystallization process interpenetrated frameworks can be produced, in most of the case, such as herein presented, the principle of maximun space dilling requirement involves the significat role of solvents in solution-started crystallization processes. In fact, in these cases, solvents provide the Van der Waals forces driving the crystal growth, where those little molecules are strategically packed to stabilize the network and also complete coordinations spheres around metal ions in SCFs. Aspects related to the roles of solvents are especially remarkable in porous compounds [1], since their structural features have opened a wide range of applications like drug delivery, host-guest chemistry, biomedical imaging and chemical sensing [2]. However, the crystallization process is highly natural capricious and a minimum variation of the synthesis conditions not always results in the same product, as occurred in the case herein presented.

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