NDLI: Syntheses, Structures and Electrochemical Properties of Two New Copper(II) Complexes Based on Isomeric Bis(pyridylformyl)piperazine Ligands and Rigid=Flexible Organic Dicarboxylates

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Syntheses, Structures and Electrochemical Properties of Two New Copper(II) Complexes Based on Isomeric Bis(pyridylformyl)piperazine Ligands and Rigid=Flexible Organic Dicarboxylates

Content Provider	Semantic Scholar
Author	Lin, Hong-Yan Liu, Peng Wang, Xiu-Li Xu, Chuang Liu, Guo-Cheng
Copyright Year	2013
Abstract	Two new copper(II) complexes, [Cu2(3-bpfp)(2,6-PDA)2(H2O)2] (1) and [Cu(4-bpfp)0:5 (glu)]·H2O (2), have been hydrothermally synthesized by self-assembly of isomeric bis(pyridylformyl)piperazine ligands [3-bpfp=bis(3-pyridylformyl)piperazine, 4-bpfp=bis(4- pyridylformyl)piperazine], rigid pyridine-2,6-dicarboxylic acid (2,6-H2PDA) or flexible glutaric acid (H2glu), and copper(II) chloride. Single-crystal X-ray diffraction analysis reveals that two adjacent CuII ions are connected by the 3-bpfp ligand to build a dinuclear unit in complex 1, in which 2,6-PDA serves as a terminal chelating ligand. Adjacent dinuclear units are further linked by hydrogen bonding and π-π stacking interactions to form a three-dimensional (3D) supramolecular network. Complex 2 is a 3D coordination polymeric framework based on a layer polymer [Cu(glu)]n and bridging 4-bpfp ligands with 6-connected (44.610.8) topology. In 1 and 2, the ligands 3-bpfp and 4-bpfp adopt a μ2-bridging coordination mode (via ligation of pyridyl nitrogen atoms). The thermal stability and the electrochemical properties of the title complexes have been studied. Graphical Abstract Syntheses, Structures and Electrochemical Properties of Two New Copper(II) Complexes Based on Isomeric Bis(pyridylformyl)piperazine Ligands and Rigid=Flexible Organic Dicarboxylates
Starting Page	138
Ending Page	146
Page Count	9
File Format	PDF HTM / HTML
DOI	10.5560/znb.2013-2291
Volume Number	68
Alternate Webpage(s)	http://www.znaturforsch.com/s68b/s68b0138.pdf
Alternate Webpage(s)	https://doi.org/10.5560/znb.2013-2291
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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