Atria Ana María, Garland Maria Teresa, Baggio Ricardo
Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago, Chile.
Departamento de Física, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago de Chile, Chile.
Acta Crystallogr C Struct Chem. 2015 Apr;71(Pt 4):301-5. doi: 10.1107/S2053229615004751. Epub 2015 Mar 18.
Three isotypic rare earth complexes, catena-poly[[aquabis(but-2-enoato-κ(2)O,O')yttrium(III)]-bis(μ-but-2-enoato)-κ(3)O,O':O;κ(3)O:O,O'-[aquabis(but-2-enoato-κ(2)O,O')yttrium(III)]-μ-4,4'-(ethane-1,2-diyl)dipyridine-κ(2)N:N'], [Y2(C4H5O2)6(C12H12N2)(H2O)2], the gadolinium(III) analogue, [Gd2(C4H5O2)6(C12H12N2)(H2O)2], and the gadolinium(III) analogue with a 4,4'-(ethene-1,2-diyl)dipyridine bridging ligand, [Gd2(C4H5O2)6(C12H10N2)(H2O)2], are one-dimensional coordination polymers made up of centrosymmetric dinuclear [M(but-2-enoato)3(H2O)]2 units (M = rare earth), further bridged by centrosymmetric 4,4'-(ethane-1,2-diyl)dipyridine or 4,4'-(ethene-1,2-diyl)dipyridine spacers into sets of chains parallel to the [201̄] direction. There are intra-chain and inter-chain hydrogen bonds in the structures, the former providing cohesion of the linear arrays and the latter promoting the formation of broad planes parallel to (010).
三种同型稀土配合物，链状聚[[水合双(丁 - 2 - 烯酸根 - κ(2)O,O')钇(III)] - 双(μ - 丁 - 2 - 烯酸根) - κ(3)O,O':O;κ(3)O:O,O' - [水合双(丁 - 2 - 烯酸根 - κ(2)O,O')钇(III)] - μ - 4,4' - (乙烷 - 1,2 - 二基)二吡啶 - κ(2)N:N']，[Y₂(C₄H₅O₂)₆(C₁₂H₁₂N₂)(H₂O)₂]，其钆(III)类似物[Gd₂(C₄H₅O₂)₆(C₁₂H₁₂N₂)(H₂O)₂]，以及具有4,4' - (乙烯 - 1,2 - 二基)二吡啶桥连配体的钆(III)类似物[Gd₂(C₄H₅O₂)₆(C₁₂H₁₀N₂)(H₂O)₂]，是由中心对称的双核[M(丁 - 2 - 烯酸根)₃(H₂O)]₂单元（M = 稀土）组成的一维配位聚合物，通过中心对称的4,4' - (乙烷 - 1,2 - 二基)二吡啶或4,4' - (乙烯 - 1,2 - 二基)二吡啶间隔基进一步桥连形成平行于[201̄]方向的链组。结构中存在链内和链间氢键，前者提供线性阵列的内聚力，后者促进平行于(010)的宽平面的形成。
