氧化还原活性的二茂铁官能化的中性[2]轮烷的第一个实例已通过氯离子阴离子模板法合成。1 H NMR光谱滴定表明,在竞争激烈的水性介质中,这些[2]轮烷主系统选择性识别氯离子,而不是其他卤化物和氧阴离子。通过用碘代三唑卤素键-给体基团代替轮烷轴组分的氢键合原三唑单元,可以调节[2]轮烷的氯化物选择性。电化学伏安法实验表明,轮状烷可以通过添加阴离子后各自轮状烷的二茂铁-二茂铁还原氧化偶对的阴极扰动来感应氯化物。
Novel coordination polymers with ferrocene-containing dicarboxylate ligand: Syntheses, crystal structures and properties
作者:Xia Li、Wei Liu、Hong-Yun Zhang、Ben-Lai Wu
DOI:10.1016/j.jorganchem.2008.07.034
日期:2008.10
A new ferrocene-containing dicarboxylate ligand, L=5-ferrocene-1,3-benzenedicarboxylic acid, has been prepared. Self-assembly of L, M(II) salts (M=Co and Zn) and chelating ligands dpa or phen (dpa=2,2'-dipyridylamine and phen=1,10-phen) gave rise to four new coordination polymers [Co(L) (dpa)] center dot 2MeOH}(n) (1), [Zn(L)(dpa)] center dot 2MeOH}(n) (2), [Co(L)(phen)(H2O)] center dot MeOH} (3), [Zn(L)(phen) (H2O)] center dot MeOH (4). The isostructural complexes 1 and 2 possess 1D helical chain structures with 2(1) screw axes along the b-direction, and the right-and left-handed helical chains are alternate arrayed into 2D layer structures through hydrogen-bonding interactions; while isostructural complexes 3 and 4 are 1D linear chain structures with phen and ferrocene groups of L as pendants hanging on the different sides of the main chain. A structural comparison of complexes 1-4 demonstrated that the characteristics of subsidiary ligands and slight difference in coordination models of L play very important role in the construction of the complexes. In addition, the redox properties of complexes 1-4, as well as the magnetic properties of complexes 1 and 3 are also investigated. (C) 2008 Published by Elsevier B. V.