Synthesis of Ir[μ
<sup>2</sup>
‐(
<i>N</i>
‐
<i>N</i>
)]M (M = Ir and Ru) Homo‐ and Heterobimetallic Complexes through a Condensation Reaction of
<i>N</i>
‐Amino and Formyl Groups Bound to Mononuclear (η
<i>
<sup>n</sup>
</i>
‐C
<i>
<sub>n</sub>
</i>
Me
<i>
<sub>n</sub>
</i>
)M Units (
<i>n</i>
= 5 for M = Ir;
<i>n</i>
= 6 for M = Ru)
作者:Keisuke Nakao、Gyeongshin Choi、Yuki Konishi、Hayato Tsurugi、Kazushi Mashima
DOI:10.1002/ejic.201100925
日期:2012.3
followed by salt exchange, afforded the corresponding iridium mononuclear complexes [Cp*IrCl(L1-NH2)][PF6] (1a-PF6) and [Cp* IrCl(L3-CHO)][PF6] (6-PF6) that bear N-amino and formyl functionalities, whereas the reaction of [Cp*IrCl(μ-Cl)}2] with butane-2,3-diylidenebis(hydrazone) [L2-(NH2)2; 2 equiv.] afforded the half-metallocene iridium complex 2-PF6 with two free amino groups at the 2,5-positions of
[Cp*IrCl(μ-Cl)}2] (Cp* = η5-五甲基环戊二烯基)与双齿吡啶-亚胺配体如2-(1-腙乙基)吡啶(L1-NH2)和4-([ 1-(吡啶-2-基)亚乙基]腙}甲基)苯甲醛 (L3-CHO),然后进行盐交换,得到相应的铱单核配合物 [Cp*IrCl(L1-NH2)][PF6] (1a-PF6 ) 和 [Cp* IrCl(L3-CHO)][PF6] (6-PF6) 具有 N-氨基和甲酰基官能团,而 [Cp*IrCl(μ-Cl)}2] 与丁烷-2 的反应,3-二亚苯基双(腙) [L2-(NH2)2; 2 当量] 提供了半茂金属铱配合物 2-PF6,在 irida-2,5-二氮杂环戊烯骨架的 2,5-位具有两个游离氨基。1a-PF6 和 6-PF6 的 N-氨基的后官能化是用 3, 5-二甲氧基苯甲醛在催化量的 H2SO4 的 CH3CN 中加热回流。缩合反应进行形成N-