{[Ph4P]2[Cd2(tp)2(Htp)2(H2O)].·3H2O}_n and{[Ph4P][Zn(tp)(Htp)]·2H2O}_n: Two interesting 2D metal-terephthalate polymeric networks

摘要

Two new metal-terephthalate polymeric solids, {(Ph4P]2[Cd2(tp)2(Htp)2(H2O)]·3H2O}_n (1) and {(Ph4P] [Zn(tp)(Htp)]·2H2O}_n (2) (tp = terephthalate, [Ph4P] = tetraphenylphosphonium), are obtained from similar hydrothermal synthesis reactions. Upon the template effect of large bulky [Ph4P]~+ cation, the d~(10) transition metal centers are bridged by tp ligands to form an interesting 2D undulating lamellar host network for 1 and a 2D square-grid lamellar host network for 2, respectively. Both compounds exhibit intense fluorescent emission bands at 434 nm (λ_(exc) = 333 nm) for 1 and 420 nm (λ_(exc) = 350 nm) for 2 in the solid state at room temperature.