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The novel coordination polymer [Pr(BYBA)3(H2O)2]·[Pr(BYBA)3(H2O)] (BYBAH=2-benzoylbenzoic acid) was yielded by hydrothermal synthesis,determined by single-crystal X-ray diffraction,and characterized by FT-IR and UV-Vis spectra. The crystal crystallizes in the triclinic system,space group P1 with a=9.112(3),b=14.644(5),c=27.076(11),α=84.223(3),β= 87.816(4),γ=88.902(4)o,V=3592(2)3,C84H60O21Pr2,Mr=1687.14,Z=2,F(000)=1700,Dc= 1.560 g/cm3,μ=1.419 mm-1,the final R=0.0485 and wR=0.1258 for 13035 observed reflections with I > 2σ(I). The compound contains two different building units,[Pr2(BYBA)6(H2O)4] and [Pr2(BYBA)6(H2O)2]. It is noticeable that [Pr2(BYBA)6(H2O)4] is an isolated binuclear building block,in which the Pr3+ ion centers are both located in an eight-coordinated environment. However,in [Pr2(BYBA)6(H2O)2] the Pr3+ ion centers are located in a nine-coordinated environment and connected by BYBA ligands to form 1D chains.
The novel coordination polymer [Pr (BYBA) 3 (H2O) 2] [BYBH = 2-benzoylbenzoic acid was was shielded by hydrothermal synthesis, determined by single-crystal X-ray diffraction and characterized by FT-IR and UV-Vis spectra. The crystal crystallizes in the triclinic system, space group P1 with a = 9.112 (3), b = 14.644 (5), c = 27.076 3 = β = 87.816 (4) γ = 88.902 (4) o V = 3592 (2) 3 C84H60O21Pr2 Mr = 1687.14 Z = 2 F (000) = 1700 Dc = 1.560 g / cm3 , μ = 1.419 mm-1, the final R = 0.0485 and wR = 0.1258 for 13035 observed reflections with I> 2σ (I). The compound contains two different building units, [Pr2 (BYBA) 6 Pr2 (BYBA) 6 (H2O) 2]. It is noticeable that [Pr2 (BYBA) 6 (H2O) 4] is an isolated binuclear building block, in which the Pr3 + ion centers are both located in an eight-coordinated environment. , in [Pr2 (BYBA) 6 (H2O) 2] the Pr3 + ion centers are located in a nine-coordinated environment and connected by BYBA ligands to form 1D chains.