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Issue 34, 2014
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Polymeric one- and two-dimensional copper(I) iodide complexes showing photoluminescence tunable by azaaromatic ligands

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Abstract

Four low-dimensional [(CuI)xL]n complexes [L = 4,6-dimethylpyrimidine (46dmpm; x = 2), 2,5-dimethylpyrazine (x = 2), 2,6-dimethylpyrazine (x = 1), 3,5-dimethylpyridine (x = 1)] were structurally characterized. All the compounds exhibited a (CuI)n polymeric motif and the azaaromatic ligands were coordinated to each copper(I) ion, thus giving infinite two-dimensional networks for the x = 2 compounds and one-dimensional chain structures for the x = 1 compounds. The photoluminescent properties were investigated in the solid state at ambient temperature, and blue, green, and orange emissions were observed for the pyridine, pyrimidine, and pyrazine compounds, respectively. The energy level of the π* orbital of the azaaromatic compounds regulates the emission color, in agreement with the halide-to-ligand charge-transfer mechanism. A photoluminescence quantum yield of 73% was recorded for [(CuI)2(46dmpm)]n.

Graphical abstract: Polymeric one- and two-dimensional copper(i) iodide complexes showing photoluminescence tunable by azaaromatic ligands

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Publication details

The article was received on 16 Jun 2014, accepted on 17 Jun 2014 and first published on 23 Jun 2014


Article type: Paper
DOI: 10.1039/C4CE01231C
Author version available: Download Author version (PDF)
Citation: CrystEngComm, 2014,16, 8035-8040
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    Polymeric one- and two-dimensional copper(I) iodide complexes showing photoluminescence tunable by azaaromatic ligands

    N. Kitada and T. Ishida, CrystEngComm, 2014, 16, 8035
    DOI: 10.1039/C4CE01231C

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