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客户可编程多步旋转交叉在多孔的二维霍夫曼类型材料中

Michael J Murphy¹, Katrina A Zenere¹, Florence Ragon¹

¹School of Chemistry, The University of Sydney , Sydney, NSW 2006, Australia.

Journal of the American Chemical Society

|January 4, 2017

概括

这项研究引入了一种新的旋转交叉 (SCO) 材料,具有挫败的弹性相互作用. 在这个框架内,客人交流可以实现可调和的多步旋转转变,从而推进可切换材料的研究.

科学领域:

材料科学
固态化学
协调化学

背景情况:

旋转交叉 (SCO) 材料表现出由合作过渡驱动的可切换性.
多步 SCO 转换对于数据存储是可取的,但需要受控的弹性相互作用.
敌对的相互作用,如竞争的铁力和反铁力,可以驱动复杂的格子扭曲.

研究的目的:

综合和描述一个新的SCO框架, [FeII{\bztrz}2{\pdII{\CN}4}]
在此框架内调查客人交流对上合组织行为的影响.
探索弹性挫折与旋转转变的关系.

主要方法:

2D霍夫曼型SCO框架的综合 [FeII{\bztrz}2{\pdII{\CN}4}
材料结构及其双客孔系统的特征.
通过客人交换实验和旋转过渡特征的分析来调查SCO行为.

主要成果:

合成材料表现出由于竞争性铁-抗铁弹性相互作用而具有固有挫折的SCO行为.
客人交换成功调整了上合组织的行为,产生了一,两,三步过渡,以及上合组织的停用.
弹性挫折的程度和由此产生的旋转过渡复杂性可以通过分子客体操纵来调整.

结论:

新的上合组织框架展示了实现多样化转型行为的多功能平台.
由客分子操纵的弹性丧是控制多步SCO切换的关键因素.
这项研究表明,微妙的结构特征有助于SCO材料的多步切换,为材料设计开辟了新的途径.

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