通过应用二四醇基Fe2协调聚合物的维度扩大,通过应用二二烯合体
Aleksandra Tołoczko1, Marcin Kaźmierczak1, Maria Książek2
1Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland. robert.bronisz@uwr.edu.pl.
Dalton transactions (Cambridge, England : 2003)
|April 4, 2024
概括
使用 bis ((tetrazoles) 和 dinitriles 形成的新协调聚合物表现出热诱导的旋转交叉. 研究人员探索了丁烯的长度和协调如何影响网络维度和旋转交叉特性.
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:
- 在构建金属有机框架时,Bis (((tetrazole) 连接物至关重要.
- 丁烯可以在协调聚合物中充当连接体或客分子.
- 旋转交叉 (SCO) 材料具有温度依赖的磁性.
研究的目的:
- 为了合成和描述新的铁 (II) 协调聚合物,使用bis (四醇) 和各种丁烯.
- 为了研究丁结构和协调模式对产生的网络的维度的影响.
- 为了研究合成化合物的旋转交叉行为.
主要方法:
- 通过铁的反应合成协调聚合物 (II) 盐与bis (四) 和dinitriles.
- 单晶X射线衍射用于结构确定.
- 对磁感应度的测量,以描述旋转交叉特性.
主要成果:
- 形成四种协调聚合物:[Fe(μ-ebtz) 2(μ-ADN) ](BF4) 2 (1),[Fe(μ-hbtz) 2(μ-ADN) ](BF4) 2 (2),[Fe(μ-1ditz) 2(GLN) 2],[B(F4) 2·GLN (3) 和[Fe(μ-1ditz) 2(μ-SUN) ](BF4) 2·SUN (4).
- 在ebtz和hbtz系统中,dinitriles增加了维度.
- 基于1ditz的网络显示保存了2D层,其维度取决于dinitrile协调.
- 甲 (GLN) 形成了一个二维聚合物,而甲 (SUN) 由于桥接而形成了一个三维网络.
- 所有化合物都具有由四个四醇环和两个轴性亚烯分子组成的协调球体,使旋转交叉成为可能.
结论:
- 选择 bis ((tetrazole) 和dinitrile 构成块允许对协调聚合物进行控制的构建.
- 在确定维度和网络拓学方面,丁烯连接体长度和协调模式至关重要.
- 合成的铁 (II) 复合体表现出热诱导的旋转交叉,突出了它们在分子切换应用中的潜力.
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