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Discrete and 1D polymeric copper(II) complexes of tetranuclear cubane-like units : structural and magnetic characterization
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Manna, Subal Chandra, Manna, Soumen, Mistri, Soumen, Patra, Apu, Zangrando, Ennio, Puschmann, Horst, Goddard, P. A. and Ghannadzadeh, S. (2018) Discrete and 1D polymeric copper(II) complexes of tetranuclear cubane-like units : structural and magnetic characterization. ChemistrySelect, 3 (34). pp. 9885-9891. doi:10.1002/slct.201801677 ISSN 2365-6549.
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Official URL: http://dx.doi.org/10.1002/slct.201801677
Abstract
Two novel copper(II) complexes, [Cu4(L)2(LH)2(H2O)2]2(NO3)2. (pydc).9H2O (1) and {[Cu4(L)2(LH)2(H2O)2(ppda)].5H2O}n (2) [H2L=2-[(2-hydroxy-ethylimino)-methyl]-6-methoxy-phenol, pydc=pyridine-3,5-dicarboxylate, ppda=phenylene-1,4-diacrylate]have been synthesized and characterised by X-ray single crystal diffraction analysis and low temperature magnetic study. The structural determination reveals for complex 1 a tetranuclear species exhibiting a double-open cubane like core framework, whereas use of ppda anions results 1D coordination polymer where tetranuclear double-open cubane cores are connected by bridging ppda ligands. In both the complexes, hydrogen bonding interactions lead to 3D supramolecular structures. Low temperature magnetic study indicates antiferromagnetic coupling in both the complexes. A model based on an effective square tetramer of Heisenberg spins was used to determine exchange strengths of 174(2) K for 1 and 107.4(4) K for 2.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QD Chemistry | ||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Library of Congress Subject Headings (LCSH): | Polymers, Copper compounds -- Magnetic properties, Coordination polymers -- Magnetic properties | ||||
| Journal or Publication Title: | ChemistrySelect | ||||
| Publisher: | Wiley | ||||
| ISSN: | 2365-6549 | ||||
| Official Date: | 14 September 2018 | ||||
| Dates: |
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| Volume: | 3 | ||||
| Number: | 34 | ||||
| Page Range: | pp. 9885-9891 | ||||
| DOI: | 10.1002/slct.201801677 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
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