A novel Tb(Ⅲ) coordination polymer [Tb(bpapO2)2(NO3)3]n [bpapO2 = N2,N6- bi(pyridin-2-yl)pyridine-2,6-diamine-N,N'-dioxide-dioxide] has been synthesized and it exhibits terbium's characteristic fluorescent emission under UV radiation of 326 nm at room temperature. X-ray structural determination indicates that each terbium(Ⅲ) ion, centered in TbO8 core, connects to three adjacent coordinate centers via a bi-dentate ligand bpapO2, forming a one-dimensional coordination polymer. The compound crystallizes in the triclinic system, space group P1, with a = 11.2271(5), b = 11.7997(5), c = 14.8016(6) Ⅲ, α = 72.7060(10), β = 89.9630(10), γ = 66.7680(10)o, Z = 2, Dc = 1.822 g/cm3, V = 1705.14(13) Ⅲ3, F(000) = 932, the final R = 0.0340 and wR = 0.0669 for 4812 observed reflections with I > 2σ(I).
A novel binuclear Eu(Ⅲ) complex [Eu2(dpa dioxide)2(NO3)4(bpdioxide)-(EtOH)](dpa dioxide=di-2-pyridylamine N,N′-dioxide,bpdioxide=2,2′-bipyridine N,N′-dioxide) has been synthesized and it exhibits strong and sharp fluorescent emission at 614 nm under UV radiation of 245 nm at room temperature.X-ray structural determination indicates two independent Eu(Ⅲ) ions in the structure with different EuO8N and EuO9N environments.The compound crystallizes in the triclinic system,space group P1,with a=10.8089(7),b=11.4670(8),c=17.1440(12) ,α=92.834(2),β=93.854(3),γ=95.433(2)°,Z=2,Dc=1.876 g/cm3,V=2107.3(2) 3,F(000)=1168.0,the final R=0.032 and wR=0.086 for 6331 observed reflections with Ⅰ>2σ(I).
