Multiple Single-Molecule Magnet Behaviors in Dysprosium Dinuclear Complexes Involving a Multiple Functionalized Tetrathiafulvalene-Based Ligand
作者:Min Feng、Fabrice Pointillart、Bertrand Lefeuvre、Vincent Dorcet、Stéphane Golhen、Olivier Cador、Lahcène Ouahab
DOI:10.1021/acs.inorgchem.5b00272
日期:2015.4.20
ridyl)-4,5-(4,5-bis(propylthio)-tetrathiafulvalenyl)-1H-benzimidazol-2-yl)-pyridine ligand (L) and 2 equiv of Dy(hfac)3·2H2O (hfac– = 1,1,1,5,5,5-hexafluoroacetylacetonate) and 1 equiv each of Dy(hfac)3·2H2O and Dy(tta)3·2H2O (tta– = 2-thenoyltrifluoroacetonate) metallic precursors leads to two dinuclear complexes, [Dy2(hfac)6(L)]·(CH2Cl2)2·C6H14 (1) and [Dy2(hfac)3(tta)3(L)] (2), respectively. Their
2-(1-(2,6-二(吡唑-1-基)-4-甲基吡啶基)-4,5-(4,5-双(丙硫基)-四硫富瓦烯基)-1 H-苯并咪唑-之间的反应2-基)-吡啶配体(L)和2当量的Dy(hfac)3 ·2H 2 O(hfac – = 1,1,1,5,5,5,5-六氟乙酰丙酮酸酯)和1当量的Dy(hfac)3 ·2H 2 O和Dy(tta)3 ·2H 2 O(tta – = 2-thenoyltrifluoroacetonate)金属前驱体形成两个双核络合物,[Dy 2(hfac)6(L)]·(CH 2 Cl 2)2 ·C 6分别为H 14(1)和[Dy 2(hfac)3(tta)3(L)](2)。它们的X射线结构表明,两个配位位点被一个Dy III离子占据。与苯并咪唑基吡啶(bzip)部分配位的Dy III离子采用D 4 d配位球,而与2,6-二(吡唑-1-基)-4-吡啶(dpp)部分配位的Dy III离子在A