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Issue 40, 2017
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A phosphorescent copper(I) coordination polymer with sodium 3,5-dimethyl-4-sulfonate pyrazolate

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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.

Graphical abstract: A phosphorescent copper(i) coordination polymer with sodium 3,5-dimethyl-4-sulfonate pyrazolate

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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, 2017,19, 6020-6027
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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, 19, 6020
    DOI: 10.1039/C7CE01404J

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