NDLI: Syntheses, Structures, Magnetism and Fluorescence Studies of Two 1D Cu(II) Coordination Polymers Based on Bipyridyl Ligands

Content Provider	Springer Nature Link
Author	Zhao, Huajian Zhang, Chi
Copyright Year	2015
Abstract	Two one-dimesional (1D) coordination polymers (CPs) [Cu$_{2}$(μ $_{2}$-OAc)$_{4}$(μ $_{2}$-bpt)]$_{ n }$ (1) and [Cu(μ $_{t}$-DMF)(μ $_{t}$-NO$_{3}$)$_{2}$(μ $_{2}$-bpmh)]$_{ n }$ (2) (DMF = N,N-dimethylformamide) based on copper(II) salts and 3,5-bis(4-pyridyl)-1,2,4-triazole (bpt) and 1,2-bis(pyridin-4-ylmethylene)hydrazine (bpmh) have been synthesized under different conditions, respectively; and characterized by single-crystal X-ray diffraction, elemental analysis, thermogravimetric analyses, powder X-ray diffraction, fluorescence analysis, fourier transforming infrared and ultraviolet–visible spectroscopies. CP 1 shows an infinite 1D zigzag chain with paddle-wheel shaped [Cu$_{2}$(μ $_{2}$-OAc)$_{4}$] secondary building units (SBUs) and μ $_{2}$-bpt V-shaped dipyridyl ligands. The Cu···Cu distance in the [Cu$_{2}$(μ $_{2}$-OAc)$_{4}$] core is 2.631(18) Å, supporting the Cu···Cu interaction. Cu(II) in CP 2 also adopts five-coordinated mode but in trigonal bipyramidal geometry which is completed by three O atoms from nitrates and DMF and also two N atoms from adjacent bpmh to form an infinite 1D linear chain. Furthermore, the magnetism property of CP 1 was investigated. Its results show that CP 1 indicated antiferromagnetic behavior. In addition, CPs 1 and 2 display fluorescence quenching compared with corresponding free ligands at room temperature.CPs 1 and 2 were hydrothermally synthesized and solution interdiffusion procedure, respectively. Both of which show 1D infinite zigzag chain but pack in different patterns. CP 1 shows an infinite 1D zigzag chain with paddle-wheel shaped [Cu$_{2}$(μ $_{2}$-OAc)$_{4}$] secondary building units (SBUs) and μ $_{2}$-bpt V-shaped dipyridyl ligands. Cu(II) in CP 2 also adopts five-coordinated mode but in trigonal bipyramidal geometry which is completed by three O atoms from nitrates and DMF and also two N atoms from adjacent bpmh to form an infinite 1D linear chain. CP 1 shows antiferromagnetic behavior. Both CPs 1 and 2 display fluorescence quenching compared with corresponding free ligands at room temperature.
Starting Page	912
Ending Page	920
Page Count	9
File Format	PDF
ISSN	15741443
Journal	Journal of Inorganic and Organometallic Polymers and Materials
Volume Number	25
Issue Number	4
e-ISSN	15741451
Language	English
Publisher	Springer US
Publisher Date	2015-02-25
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Coordination polymer 3,5-Bis(4-pyridyl)-1,2,4-triazole 1,2-Bis(pyridin-4-ylmethylene)hydrazine Crystal structure Magnetism Fluorescence Inorganic Chemistry Organic Chemistry Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Polymers and Plastics

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