基于Fe和Ru的1,1'-(3,6-pyrazabolyl) 金属的复杂堆叠障碍
Berthold Stöger1, Alexandr Virovets2, Mischa Wenisch2
1X-Ray Centre, TU Wien, Getreidemarkt 9, 1060 Vienna, Austria.
概括
铁和鲁丁衍生物表现出复杂的秩序-混乱结构. 确定了多种多类型和方向,表明了超出简单模型的复杂晶体生长.
科学领域:
- 有机金属化学 有机金属化学
- 晶体学 晶体学是指结晶学.
- 材料科学 材料科学 材料科学
背景情况:
- 铁素[Fc(BHpz) 2和鲁素[Rc(BHpz) 2是有机金属化合物,具有各种结构安排的潜力.
- 了解晶体结构,特别是秩序-混乱 (OD) 现象,对于预测材料特性和合成途径至关重要.
研究的目的:
- 为了研究1.1'-(3,6-Pyrazabolyl) 铁 [Fc(BHpz) 2]及其鲁烯模拟物[Rc(BHpz) 2]的晶体结构.
- 描述秩序-混乱 (OD) 现象,并确定这些化合物中存在的最大程度的秩序 (MDO) 多型.
主要方法:
- 用单晶X射线衍射分析来确定晶体结构.
- 对衍射模式的分析,包括扩散散射和额外的峰值,用于识别多类型和障碍.
主要成果:
- 两个Fc(BHpz) 2和Rc(BHpz) 2结晶为有序-无序 (OD) 结构,具有Pma(m) 对称性.
- 由于层叠叠的可能性,鉴定出了四种最大级别顺序 (MDO) 的不同多类型.
- 晶体显示MDO多种类型和方向的混合物,明显的扩散散射,表明复杂的障碍,不能通过简单的生长模型来解释. 一个Rc(BHpz) 2晶体呈现出MDO3碎片.
结论:
- Fc(BHpz) 2和Rc(BHpz) 2的结晶导致复杂的OD结构,具有多个MDO多种类型和方向.
- 观察到的扩散散凸显了显著的结构性障碍,表明了复杂的生长机制.
- 这些发现提供了关于有机金属化合物的复杂晶体学和它们固态结构的因素的见解.
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