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 mu-(kappa O;kappa(2)-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 (Phi(PL) = 0.44), together with a remarkable Stokes shift of 2.50 eV.
A phosphorescent copper(i) coordination polymer with sodium 3,5-dimethyl-4-sulfonate pyrazolate / G.A. Ardizzoia, S. Brenna, F. Civati, V. Colombo, A.A.D. Sironi. - In: CRYSTENGCOMM. - ISSN 1466-8033. - 19:40(2017 Sep), pp. 6020-6027. [10.1039/c7ce01404j]
A phosphorescent copper(i) coordination polymer with sodium 3,5-dimethyl-4-sulfonate pyrazolate
V. Colombo
;A.A.D. Sironi
2017
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 mu-(kappa O;kappa(2)-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 (Phi(PL) = 0.44), together with a remarkable Stokes shift of 2.50 eV.File | Dimensione | Formato | |
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