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A zinc(II) coordination polymer, [Zn4(o-bda)4(p-pbim)4]n, with strong blue fluorescence.
- Source :
-
Journal of Coordination Chemistry . Mar2009, Vol. 62 Issue 6, p886-893. 8p. 4 Diagrams, 3 Charts, 2 Graphs. - Publication Year :
- 2009
-
Abstract
- A zinc(II) coordination polymer, [Zn4(o-bda)4(p-pbim)4]n (1) (p-pbim = 4-pyridylbenzimidazole, o-bda2- = o-phenylenediacetic acid dianion), has been synthesized by hydrothermal method and characterized by elemental analysis, IR, TG, photoluminescence and X-ray single crystal diffraction. Complex 1 crystallizes in a monoclinic system and space group P21/n, with a = 14.231(3) Å, b = 16.257(4) Å, c = 16.794(4) Å, β = 100.262(1)°, and Z = 8; R1 for 6475 observed reflections [I > 2σ(I)] was 0.0420. Complex 1 shows a bi-chain structure fabricated by the tetranuclear zinc unit. Two zinc(II) ions are five coordinate with distorted trigonal-bipyramid geometry; the other two zinc(II) ions are four coordinate with distorted tetrahedral geometry. Complex 1 builds the 1-D bi-chain structure with two different subrings A and B, which are 32-member and 14-member rings, respectively. There exists a 2-D supramolecular network linked by hydrogen-bonding interactions (2.695 and 2.807 Å). A 3-D supramolecular network is further constructed by non-covalent interactions between the 1-D bi-chain structure. The TG/DTG shows that the chain skeleton is thermally stable to 356°C. Blue fluorescent emission of the complex was determined at 404 nm in the solid state with short decay lifetime of 1.67 ns. [ABSTRACT FROM AUTHOR]
- Subjects :
- *POLYMERS
*ZINC
*PHOTOLUMINESCENCE
*OPTICAL diffraction
*CRYSTALS
Subjects
Details
- Language :
- English
- ISSN :
- 00958972
- Volume :
- 62
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Journal of Coordination Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 36114581
- Full Text :
- https://doi.org/10.1080/00958970802379095