Characterization and luminescence properties of a new europium (III) complex with a macrocyclic ligand

Abstract

The title compound (13, 27-dichloro-3, 6, 9, 17, 20, 23-hexaazatricyclo-[23.3.1.1^11,15]-triaconta-l(29), 2, 9, 11, 13, 15(30), 16, 23, 25, 27-decaene-29, 30-diol-N³, N⁶, N⁹, O²⁹, O³⁰)-bis(nitrato-O,O)-Europium(III) nitrate was prepared and characterized by elemental analysis, infrared spectra, electrospray mass spectrum and X-ray diffraction, respectively. The crystal of the complex crystallizes in the monoclinic system, space group C2/c with a=2.3737(2) nm, b=14.333(1) nm, c=19.388(2) nm, β = 91.804(1)°, M _r = 850.4, V = 6.5929(8) nm³, R= 0.0333, wR= 0.0936. At room temperature, excitation of the title complex gives rise to the characteristic luminescent emissions of the Eu³⁺ ion.

Keywords

lanthanide / macrocycle / crystal structure / luminescence

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