三路晶体到晶体的可逆转换和受控的旋转切换由一个无孔的分子材料
José Sánchez Costa1, Santiago Rodríguez-Jiménez, Gavin A Craig
1Departament de Química Inorgànica, Universitat de Barcelona , Diagonal, 645, 08028 Barcelona, Spain.
Journal of the American Chemical Society
|February 22, 2014
概括
这项研究引入了一种罕见的无孔铁复合物,可逆地交换客分子,诱导旋转状态切换和颜色变化. 这些单晶转化为单晶,在室温下提供易于检测的传感.
科学领域:
- 材料科学 材料科学 材料科学
- 无机化学 无机化学
- 晶体学 晶体学是指结晶学.
背景情况:
- 多孔材料对于容纳外部分子至关重要.
- 由于结构完整性的挑战,具有内部格子重组能力的无孔材料很少见.
- 开发用于客人交流的新型无孔材料是一个重要的研究领域.
研究的目的:
- 为了合成和表征一种新的异体质低旋转Fe (II) 复合体.
- 调查无孔复合体的客人交换属性.
- 探索客人交换,旋转状态切换和结构转型之间的关系.
主要方法:
- 单晶X射线衍射的X射线衍射方法
- 铁复合物的合成
- 客分子交换实验 客分子交换实验
- 光谱分析 (暗示颜色变化)
主要成果:
- 合成了一种无孔的Fe (II) 复合物,Fe (bpp) (H2L) (ClO4) 2·1.5C3H6O.
- 在挤出和再吸收乙时观察到可逆的单晶到单晶 (SCSC) 转变.
- 综合体在这些转换过程中表现出旋转状态切换 (低旋转到高旋转) 和宏观色彩变化.
- 该材料还可以通过SCSC过程将乙交换成MeOH和H2O,并伴随着旋转状态切换.
结论:
- 合成的无孔Fe (II) 复合体表现出独特的可逆SCSC转换.
- 这些转换与客分子交换,自旋状态切换和在室温下可观察到的颜色变化有关.
- 这种材料显示出作为一种非孔隙的基于旋转的传感器,具有易于检测信号的潜力.
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