| 摘 要： | By applying two donor-acceptor motif molecules,5,10-di(pyridin-4-yl)-5,10-dihydrophenazine(LI)and 10,10'-di(pyridin-3-yl)-10 H,10'H-9,9'-spiroacridine(L2),as ligands and CuI/AgCF_3 CO_2 as metal salt,we synthesized three coordination polymers,namely,{Cu_4(L1)_2 I_4}(CP1),{Cu(L2)I-CHCl_3}(CP2) and{Ag(L2)CO_2 CF_3·CHCl_3}(CP3).X-ray crystallographic analysis revealed that three coordination polymers all feature one-dimensional(1 D) linear chains which are consisting of molecular boxlike units.In comparison with low photoluminescence quantum yield(PLQY) of two ligands,three coordination polymers.CP1,CP2 and CP3,present more intense photoluminescence with PLQY of 15%,46% and 34% at room temperature respectively.The PL emission of CP1 and CP2 at room temperature could be attributed to the fast phosphorescence with lifetime both around 5 μs due to effective intersystem crossing(ISC).Whilst,it is worth noting that CP3 exhibit thermally activated delayed fluorescence(TADF) emission at room temperature.
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