Role of solvent-host interactions that lead to very large swelling of hybrid frameworks
Role of solvent-host interactions that lead to very large swelling of hybrid frameworks
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DOI：
10.1126/science.1137975
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发表时间：
2007-03-30
期刊：
影响因子：
56.9
通讯作者：
Ferey, G.
中科院分区：
文献类型：
--
作者：
Serre, C.;Mellot-Draznieks, C.;Ferey, G.
在溶剂吸附时发生异常大的膨胀，而在标记为MIL-88 A至D的一系列等网格二羧酸铬（III）或铁（III）的网络中没有明显的键断裂[二羧基=富马酸盐（88 A）;对苯二甲酸盐（1，4-BDC）（88 B）; 2，6-萘二羧酸盐（2，6-NDC）（88 C）;和4- 4 '-联苯二羧酸盐（4- 4'-BPDC）（88 D）]。这种可逆的“呼吸”运动被分析的细胞尺寸（呼吸的程度），在框架内的运动（转换机制），以及客人和骨架之间的相互作用。原位技术表明，这些柔性固体是高度选择性的吸收剂，并且这种选择性强烈依赖于有机连接剂的性质。
An unusually large expansion upon solvent adsorption occurs without apparent bond breaking in the network of a series of isoreticular chromium(III) or iron(III) diarboxylates labeled MIL-88A to D [dicarbox = fumarate (88A); terephthalate (1,4-BDC) (88B); 2,6-naphthalenedicarboxylate (2,6-NDC) (88C); and 4-4'-biphenyldicarboxylate (4-4'-BPDC) (88D)]. This reversible "breathing" motion was analyzed in terms of cell dimensions (extent of breathing), movements within the framework (mechanism of transformation), and the interactions between the guests and the skeleton. In situ techniques show that these flexible solids are highly selective absorbents and that this selectivity is strongly dependent on the nature of the organic linker.