分子构造学:控制多孔电荷辅助H键网络中的可逆水释放
Pierre Dechambenoit1, Sylvie Ferlay, Nathalie Kyritsakas
1Laboratoire de Chimie de Coordination Organique, UMR CNRS 7140, Université Louis Pasteur, Institut Le Bel, 4 rue Blaise Pascal, F-67000 Strasbourg, France.
Journal of the American Chemical Society
|November 15, 2008
概括
研究人员使用比萨米构造体和金属化物离子制造出强大的多孔晶体. 这些材料表现出可逆的溶剂吸收和释放,由于基组功能化增加了脱水温度.
科学领域:
- 晶体工程 晶体工程
- 超分子化学 超分子化学
- 材料科学 材料科学 材料科学
背景情况:
- 合成了具有基基团的比萨米二基质子.
- 使用了六金属酸盐离子 (M = Fe,Co,Cr).
研究的目的:
- 用 bisamidium tektons 和 hexacyanometalate 离子合成强大的多孔晶体.
- 为了研究溶剂分子的释放和吸收特性.
- 为了提高多孔材料的脱水温度.
主要方法:
- 比萨米构质子和[M(CN) 6) ((3-) 2) 阳离子的联合结晶.
- 单晶X射线衍射用于分析晶体结构.
- 热重力测量分析以确定分解和脱水温度.
主要成果:
- 形成强大的多孔晶体,分解温度在240-300°C之间.
- 观察可逆单晶到单晶的变化,以释放和吸收溶剂.
- 在有机基层上引入基团,使脱水温度增加了约40°C.
结论:
- 比萨米质子和六金属酸盐离子形成稳定的多孔框架.
- 这些多孔晶体显示出可逆的客宿主相互作用.
- 构造骨干与基团的功能化增强了热稳定性和脱水温度.
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