have been prepared. Mononuclear N-Heterocyclic carbene silver complexes: L1AgPF6 (1), L2AgPF6 (2), L3AgPF6 (3) were synthesized in DMSO. Transmetalation reactions afford the synthesis of the nickel(II) complex L2Ni(PF6)2 (4). Furthermore, L2H, L3H and L4H were treated with silver oxide in CH3CN to afford other complexes (5, 6 and 7). The complexes 5 and 6 formed 1D and 2D supramolecular chains by AgN
                                    制备了
咪唑鎓盐[(N-烷基-
咪唑基)甲基]苯并三唑
六氟磷酸盐(L1H:烷基= n-
C4H9,
L2H:烷基=皮基,L3H:烷基= 9-
蒽甲基,L4H:烷基= 1-
萘甲基)。在
DMSO中合成了单核N-杂环卡宾
银络合物:L1AgPF6(1),
L2AgPF6(2),L3AgPF6(3)。过渡
金属化反应提供了
镍(II)络合物
L2Ni(PF6)2(4)的合成。此外,
L2H,L3H和L4H用在CH 3 CN
氧化银进行处理,得到其它复合物(5,6和7)。配合物5和6分别通过Ag N键和分子间π-π相互作用形成1D和2D超分子链,发现NHC的卡宾碳原子不与
银原子配位。然而,在配合物7中,
银原子选择性地结合至苯并三唑的氮原子和
咪唑的碳原子,从而提供了双核Ag
金属lamcrocrocycles。配合物1 – 7的特征在于单晶X射线衍射,NMR光谱,元素分析和粉末X射线衍射。研究了NHC Ni络合物4对Suzuki-Miyaura交叉偶联的催化活性。