Disruption of 鈥淐oordination Polymer鈥?Architecture in Cu2+ Bis-Phosphonates and Carboxyphosphonates by Use of 2,2鈥?Bipyridine as Auxiliary Ligand: Structural Variability and Topological Anal

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• 作者：Konstantinos D. Demadis ; Aggeliki Panera ; Zafeiria Anagnostou ; Dimitris Varouhas ; Alexander M. Kirillov ; Ivana C铆sa艡ov谩
• 刊名：Crystal Growth & Design
• 出版年：2013
• 出版时间：October 2, 2013
• 年：2013
• 卷：13
• 期：10
• 页码：4480-4489
• 全文大小：644K
• 年卷期：v.13,no.10(October 2, 2013)
• ISSN：1528-7505

文摘

The outcome of a synthesis involving a metal ion and a (poly)phosphonic acid depends on a plethora of variables such as solution pH, reactant molar ratios, nature of the metal ion, number of phosphonate groups, and other 鈥渇unctional鈥?moieties present on the ligand backbone. Products are usually coordination polymers of diverse dimensionality. Here we report that the use of a chelating auxiliary ligand (2,2鈥?bpy) can 鈥渄isrupt鈥?the polymeric architecture of the copper phosphonate, causing the isolation of a series of molecular complexes (mononuclear or binuclear) that incorporate both the phosphonate and the 2,2鈥?bpy ligands. Synthetic details, crystal structures, and intermolecular interactions (蟺鈥撓€ stacking and hydrogen bonding) are discussed. The structures of the obtained Cu complexes are extended into 2D or 3D networks via multiple hydrogen bonds involving the molecular units and crystallization water molecules. These H-bonded networks have been classified from the topological viewpoint, revealing diverse topologies that also include their undocumented types.