摘要
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） A, α = 84.223（3）,β = 87.816（4）,γ = 88.902（4）°, V= 3592（2）A, C84H60O21Pr2, Mr = 1687.14, Z = 2, F（000） = 1700, Dc = 1.560 g/cm^3, μ=1.419mm^-1, the fmal R = 0.0485 and wR = 0.1258 for 13035 observed reflections with I 〉 2σ（Ⅰ）. The compound contains two different building milts, [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 Pr^3＋ ion centers are located in a nine-coordinated envirormlent and connected by BYBA ligands to form 1D chains.
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） A, α = 84.223（3）,β = 87.816（4）,γ = 88.902（4）°, V= 3592（2）A, C84H60O21Pr2, Mr = 1687.14, Z = 2, F（000） = 1700, Dc = 1.560 g/cm^3, μ=1.419mm^-1, the fmal R = 0.0485 and wR = 0.1258 for 13035 observed reflections with I 〉 2σ（Ⅰ）. The compound contains two different building milts, [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 Pr^3＋ ion centers are located in a nine-coordinated envirormlent and connected by BYBA ligands to form 1D chains.
基金
the State Key Laboratory of Structural Chemistry and Foundation of Education Committee of Fujian Province (No. JB04049).
