Synthesis, structures, luminescent and magnetic properties of four coordination polymers with the flexible 1,3-phenylenediacetate ligands
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000 (China)
- School of Chemistry and Biology Engineering, Taiyuan University of Science and Technology, Taiyuan 030021 (China)
Four coordination polymers, [Zn(pda)(bpy)(H{sub 2}O)]{sub n}.nH{sub 2}O (1), [Cd(pda)(prz)(H{sub 2}O)]{sub n} (2), [Co{sub 3}({mu}{sub 3}-OH){sub 2}(pda){sub 2}(pyz)]{sub n}.2nH{sub 2}O (3) and [Pr{sub 2}(pda){sub 3}(H{sub 2}O){sub 2}]{sub n} (4) (H{sub 2}pda=1,3-phenylendiacetic acid, bpy=4,4'-bipyridine, prz=piperazine and pyz=pyrazine) have been hydrothermally synthesized and characterized. Complex 1 is a 1D wheel-like chain structure, which is further extended into a 3D metal-organic supramolecular framework by H-bonds and {pi}-{pi} stacking interactions. Complex 2 is a 1D ladder-like chain structure, which is also further extended into a 3D metal-organic supramolecular framework by H-bonds. Complex 3 possess a 2D sheet structure with infrequent two pairs of double-helix chains. Complex 4 features a 3D structure. Both 1 and 2 display strong blue fluorescent emission at room temperature. Magnetic susceptibility measurements of complexes 3 and 4 exhibit antiferromagnetic interactions between the nearest metal ions, with C=9.99 and 3.43 cm{sup 3} mol{sup -1} K, and {theta}=-23.9 and -46.3 K, respectively. -- Graphical abstract: Four new coordination polymers with 1,3-phenylenediacetate ligands have been hydrothermally synthesized and characterized. Complexes 1 and 2 display strong blue fluorescent emission at room temperature. Magnetic susceptibility measurements of 3 and 4 exhibit antiferromagnetic interactions between the nearest metal centers. Display Omitted Research highlights: > Coordinative property of H{sub 2}pda ligand was shown when bonded by different block metals. > Careful selection of co-ligand and metals resulted in dramatic framework evolution. > (c) The compounds constructed with Zn{sup 2+} and Cd{sup 2+} exhibit strong blue fluorescent emission. > The magneto-structural correlation of the complexes constructed with Co{sup 2+} and Pr{sup 3+} was elucidated.
- OSTI ID:
- 21504056
- Journal Information:
- Journal of Solid State Chemistry, Vol. 184, Issue 3; Other Information: DOI: 10.1016/j.jssc.2011.01.030; PII: S0022-4596(11)00041-7; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ANTIFERROMAGNETISM
BIPYRIDINES
CADMIUM COMPLEXES
CADMIUM IONS
COBALT COMPLEXES
COBALT IONS
FLUORESCENCE
HYDROTHERMAL SYNTHESIS
LIGANDS
MAGNETIC SUSCEPTIBILITY
ORGANOMETALLIC COMPOUNDS
PHOTOLUMINESCENCE
PIPERAZINES
POLYMERS
PRASEODYMIUM COMPLEXES
PRASEODYMIUM IONS
TEMPERATURE RANGE 0273-0400 K
ZINC COMPLEXES
ZINC IONS
AZINES
CHARGED PARTICLES
COMPLEXES
EMISSION
HETEROCYCLIC COMPOUNDS
IONS
LUMINESCENCE
MAGNETIC PROPERTIES
MAGNETISM
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTON EMISSION
PHYSICAL PROPERTIES
PYRAZINES
PYRIDINES
RARE EARTH COMPLEXES
SYNTHESIS
TEMPERATURE RANGE
TRANSITION ELEMENT COMPLEXES