Solid-state reactions of copper(I) iodide with 1,4-diazabicyclo[2.2.2]octane (DABCO) and piperazine in different conditions (kneading, vapour digestion, thermal treatment) resulted in the formation of four new luminescent systems, which have been characterized via X-ray diffraction and photo-luminescence spectroscopy. At room temperature all compounds exhibit a bright emission in the solid state that markedly shifts bathochromically on cooling to 77 K. The luminescence of the almost isostructural 2D-coordination polymers [Cu2I2(L)(2)](infinity) (L = DABCO, piperazine) exhibits an unusually long lifetime (125 and 53 mu s, respectively), which becomes even longer (609 and 420 mu s, respectively) at 77 K.
Solid-state reactivity of copper(i) iodide: luminescent 2D-coordination polymers of CuI with saturated bidentate nitrogen bases.
BRAGA, DARIO;GREPIONI, FABRIZIA;MAINI, LUCIA;MAZZEO, PAOLO PIO;
2011
Abstract
Solid-state reactions of copper(I) iodide with 1,4-diazabicyclo[2.2.2]octane (DABCO) and piperazine in different conditions (kneading, vapour digestion, thermal treatment) resulted in the formation of four new luminescent systems, which have been characterized via X-ray diffraction and photo-luminescence spectroscopy. At room temperature all compounds exhibit a bright emission in the solid state that markedly shifts bathochromically on cooling to 77 K. The luminescence of the almost isostructural 2D-coordination polymers [Cu2I2(L)(2)](infinity) (L = DABCO, piperazine) exhibits an unusually long lifetime (125 and 53 mu s, respectively), which becomes even longer (609 and 420 mu s, respectively) at 77 K.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
