Assembly of high nuclearity clusters from a family of tripodal tris-carboxylate ligands
作者:Stephen P. Argent、Irina Tarassova、Alex Greenaway、Harriot Nowell、Sarah A. Barnett、Mark R. Warren、Chiu C. Tang、Christopher G. Morris、William Lewis、Neil R. Champness、Martin Schröder、Alexander J. Blake
DOI:10.1016/j.poly.2016.04.029
日期:2016.12
tripodal conformations in which the three arms are directed facially. The structures of [Zn8(μ4-O)(L1)4(HCO2)2(H2O)0.33(DMF)2] (1a-Zn), [Co14(L2)6((μ3-OH)8(HCO2)2(DMF)4(H2O)6] (2-Co), [Ni14(L2)6(μ3-OH)8(HCO2)2(DMF)4(H2O)6] (2-Ni), [Zn8(μ4-O)(L3)4(DMF)(H2O)4(NO3)2] (3-Zn), [Ni5(μ-OH)4(L2)2(H2O)6(DMF)4] (5-Ni), [Co8(μ4-O)4(L4)4(DMF)3(H2O)] (6-Co) and Fe3(μ3-O)(L4)2(H2O)(DMF)2)] (7-Fe) contain polynuclear
四个tris-羧酸配体1,3,5-tris(4'-羧基联苯-2-基)苯(H3L1),1,3,5-tris-2-羧苯基苯(H3L2),1,3,合成了5-三(4''-羧基-对-叔苯基-2-基)苯(H3L3)和1,3,5-三(3'-羧基联苯基-2-基)苯(H3L4)并先与行过渡金属阳离子得到九种配合物,这些配合物在结构上已通过X射线晶体学表征。配体具有共同的设计基序,该基序具有通过三个邻二取代苯基接头连接到苯核的三个臂。配体在羧酸官能化臂的长度和方向上变化,并且都能够采用三臂构型,其中三个臂面向面部。[Zn8(μ4-O)(L1)4(HCO2)2(H2O)0.33(DMF)2](1a-Zn),[Co14(L2)6((μ3-OH)8(HCO2)2 (DMF)4(H2O)6](2-Co),[Ni14(L2)6(μ3-OH)8(HCO2)2(DMF)4(H2O)6](2-Ni),[Zn8(μ4-O)(L3)4(DMF)(H2O)4(