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Polymers 2016, 8(2), 46; doi:10.3390/polym8020046

Self-Assembly of Discrete Metallocycles versus Coordination Polymers Based on Cu(I) and Ag(I) Ions and Flexible Ligands: Structural Diversification and Luminescent Properties

1
Departamento de Química, Universidad Católica del Norte, Av. Angamos 0610, Antofagasta 124000, Chile
2
Departamento de Química, Universidad de Antofagasta, Av. Angamos 601, Antofagasta 124000, Chile
3
Departamento de Física, Universidad de Antofagasta, Av. Angamos 601, Antofagasta 124000, Chile
4
Institut für Anorganische Chemie der Goethe-Universität Frankfurt, Max-von-Laue-Strasse 7, D-60438 Frankfurt am Main, Germany
5
Departament de Química Física and Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, Martí i Franqués 1, Barcelona 08028, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Félix Zamora
Received: 19 December 2015 / Revised: 26 January 2016 / Accepted: 28 January 2016 / Published: 15 February 2016
(This article belongs to the Special Issue Coordination Polymers: New Materials for Multiple Applications)
View Full-Text   |   Download PDF [5164 KB, uploaded 15 February 2016]   |  

Abstract

Three new Ag(I) and one Cu(I) coordination compounds with two different positional isomers, propane-1,3-diyl bis(pyridine-4-carboxylate) (L1) and propane-1,3-diyl bis(pyridine-3-carboxylate) (L2), of a bis-(pyridyl-carboxylate) ligand have been synthesized. X-ray diffraction analysis revealed that the self-assembly of L1 with AgCF3SO3 and AgClO4 salts leads to the formation of discrete binuclear metallocycles {Ag(L1)CF3SO3}2 (1) and {Ag(L1)ClO4}2 (2), respectively. However, self-assembly of the other ligand, L2, with AgCF3SO3 and CuCl salts, results in a 1-D zig-zag chain {Ag(L2)CF3SO3} (3) and a 1-D double-stranded helical chain {Cu2Cl2(L2)2} (4) coordination polymers, respectively. Solid emission spectra recorded at room temperature show interesting luminescence properties for all four compounds in the range from 438 to 550 nm, especially for compound 4 that was found to change its emission color when the wavelength of the excitation radiation is switched from 332 to 436 nm. View Full-Text
Keywords: metal-organic framework; luminescence; coordination polymer; MOF metal-organic framework; luminescence; coordination polymer; MOF
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Vallejos, J.; Brito, I.; Cárdenas, A.; Bolte, M.; Conejeros, S.; Alemany, P.; Llanos, J. Self-Assembly of Discrete Metallocycles versus Coordination Polymers Based on Cu(I) and Ag(I) Ions and Flexible Ligands: Structural Diversification and Luminescent Properties. Polymers 2016, 8, 46.

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