Dimensionality Variation in Dinuclear Cu(II) Complexes of a Heterotritopic Pyrazolate Ligand

Crystals

Chris S. Hawes¹ 

[1] MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand

关键词: heterocycles;    crystallography;    metallosupramolecular chemistry;    crystal engineering;   

DOI  :  10.3390/cryst4010032

来源: mdpi

【 摘 要 】

Two new Cu(II) complexes of the ligand 3-carboxy-5-(2-pyridyl)-1H-pyrazole, H₂L1, have been prepared and structurally characterized and found to be comprised of a similar [M₂L₂] dimer motif. Subtle variation in the synthetic conditions allowed isolation of two metal complexes: [Cu₂L1₂(MeOH)₂], 1, a discrete dimer linked by hydrogen bonding interactions in the solid state, and poly-[Cu₂L1₂], 2, a polymeric material where the dimer motif is linked by carboxylate bridges to give an extended two-dimensional sheet. The selective isolation of each phase by careful synthetic control highlights the subtlety and importance of the underlying synthetic conditions.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.