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A Phosphorescent Copper(I) Coordination Polymer with Sodium 3,5-dimethyl-4-sulfonate Pyrazolate

Abstract

A phosphorescent copper(I) coordination polymer with the sodium salt of 3,5-dimethyl-4-sulfonate pyrazole (HLNa) has been prepared and structurally characterized. The presence of the SO3Na substituent in position 4 of the pyrazole ring led to a 3D polymeric species in which an organic/inorganic/organic sandwich motif is observed and repeated along the a axis through zig-zag chains of linear coordinated Cu(I) ions. The inorganic core of the sandwich consists of a trapezoidal grid of Na-ions interconnected by µ-(κO;κ2-O',O")-bridging sulfonates and bridging water molecules; H-bonds can be also found between water molecules and SO3- groups. In the solid state, the copper derivative showed an interesting phosphorescent behavior when irradiated with UV light, with a yellow emission (570 nm) and a good absolute quantum yield (ΦPL = 0.44), together with a remarkable Stokes shift of 2.50 eV.

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Publication details

The article was received on 01 Aug 2017, accepted on 10 Sep 2017 and first published on 11 Sep 2017


Article type: Paper
DOI: 10.1039/C7CE01404J
Citation: CrystEngComm, 2017, Accepted Manuscript
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    A Phosphorescent Copper(I) Coordination Polymer with Sodium 3,5-dimethyl-4-sulfonate Pyrazolate

    G.ATTILIO ARDIZZOIA, S. Brenna, F. Civati, V. Colombo and A. Sironi, CrystEngComm, 2017, Accepted Manuscript , DOI: 10.1039/C7CE01404J

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