六坐标 (II) 复合物与甲基基基合物:合成,晶体结构,磁性和HFEPR研究
Nataliya Plyuta1, Anne-Laure Barra2, Ghenadie Novitchi2
1Univ Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, F-49000 Angers, France. narcis.avarvari@univ-angers.fr.
Dalton transactions (Cambridge, England : 2003)
|May 8, 2024
概括
两种新的 (II) 复合物被合成使用二亚醇希夫基联体. 这些复合体表现出扭曲的八面体几何和显著的磁性异构,这是由于独特的Ni-N结合和超分子相互作用.
科学领域:
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
背景情况:
- (II) 复合物在催化和材料科学中至关重要.
- 希夫基联体提供了多样化的协调特性.
- 西二醇组合具有独特的电子和结构特征.
研究的目的:
- 合成和表征新的 (II) 复合物与二二醇希夫基联体.
- 研究由此产生的复合体的协调几何和结构性质.
- 探索合成化合物的磁性行为和超分子组合.
主要方法:
- 合成 (II) 复合物使用 (II) 乙酸四水合和甲基希夫基联体.
- 单晶X射线衍射用于结构阐明.
- 磁性易感性和高场电子偏磁共振 (EPR) 谱学用于磁性属性分析.
主要成果:
- 形成了两个新的 (II) 复合物,即Ni (L1) 2和Ni (L2) 2·CH2Cl2.
- 三酸NNO配体在Ni (II) 离子周围创造了一个扭曲的八面体环境.
- 通过结和π-π堆叠,延长的Ni-N键和2D/3D超分子阵列的形成.
- 观察到显著的磁性异质性,轴性扭曲参数D = -8到 -10厘米-1.1.
结论:
- 合成的 (II) 复合体表现出有趣的结构和磁性特性.
- 西亚 (Benzothiadiazole) 希夫基联体有效地与 (((II) 协调,影响复杂的几何结构.
- 超分子相互作用在这些复杂的固态结构中起着至关重要的作用.
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