与BIAN类型体结合的复合物:合成,结构和还氧化化学
Nikolai F Romashev1, Ivan V Bakaev1,2, Veronika I Komlyagina1,2
1Nikolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk 630090, Russia.
International journal of molecular sciences
|July 14, 2023
概括
合成了新的复合物,其中含有 bis ((diisopropylphenyl) iminoacenaphtene (dpp-bian) 连接物. 酸复合物 (2) 是不稳定的,分解成的物种,这些物种的特征是EPR光谱学.
科学领域:
- 有机金属化学 有机金属化学
- 协调化学 协调化学
- 频谱学是一种光谱学.
背景情况:
- 复合物在催化和材料科学中非常有价值.
- 双二烯 (dpp-bian) 是一种适用于过渡金属的多功能连接体.
研究的目的:
- 用dpp-bian配体合成和描述新型的复合物.
- 研究这些复合物的结构,电化学和磁性特性.
- 为了研究化复合物的稳定性和分解途径.
主要方法:
- 复合物的合成和表征.
- 频谱技术 (NMR,IR,UV-Vis) 的使用.
- 基本分析. 基本分析.
- 进行X射线衍射分析.
- 循环电压计 (CV).循环电压计.
- 磁化学测量 磁化学测量 磁化学测量
- 电子偏磁共振 (EPR) 光谱学.电子偏磁共振 (EPR) 光谱学.
- 密度函数理论 (DFT) 的计算.
主要成果:
- 三个复合物,[Ir(cod) dpp-bian) Cl] (1),[Ir(cod) NO) dpp-bian) BF4) 2 (2),和[Ir(cod) dpp-bian) BF4) (3),已经成功合成和描述.
- 1-3号综合体呈现正方形金字塔形状的几何形状,在2号综合体中具有曲的Ir-N-O键.
- 复合物2在溶液中不稳定,分解形成复合物3和一个偏磁性 (II) 物种 (4).
- EPR光谱学证实了分解产品中存在一个低旋转的5d7-Ir(II) 状态.
结论:
- 合成的-dpp-bian复合体具有独特的结构和电子特性.
- 尼基复合物 (2) 显示出不稳定性,突出显示了潜在的反应途径.
- (II) 分解产物的表征提供了对氧化还原行为和电子结构的见解.
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