Nanoporous lanthanide metal–organic frameworks as efficient heterogeneous catalysts for the Henry reaction
作者:Anirban Karmakar、Susanta Hazra、M. Fátima C. Guedes da Silva、Anup Paul、Armando J. L. Pombeiro
DOI:10.1039/c5ce01456e
日期:——
self-assembled lanthanide coordination polymers formulated as [La(L1)2]n·1n(DMF)H·3n(DMF) (1), [Ce(L1)2]n·1n(DMF)H·2n(DMF) (2), [Sm(L1)2]n·1n(HCONH2)H·2n(HCONH2) (3), [La(L2)(HL2)(H2O)(DMF)2]n (4) and [Ce(L2)(HL2)(H2O)(DMF)2]n (5) [H2L1: 2-acetamidoterephthalic acid and H2L2: 2-benzamidoterephthalic acid] has been synthesized from the reactions of H2L1 or H2L2 with different lanthanide salts under hydrothermal
一系列自组装镧系配位聚合物,配制成[La(L1)2 ] n ·1 n(DMF)H·3 n(DMF)(1),[Ce(L1)2 ] n ·1 n(DMF) H·2 n(DMF)(2),[Sm(L1)2 ] n ·1 n(HCONH 2)H·2 n(HCONH 2)(3),[La(L2)(HL2)(H 2 O )(DMF)2 ] n(4)和[Ce(L2)(HL2)(H 2 O)(DMF)2 ]n(5)[H 2 L1:2-乙酰氨基对苯二甲酸和H 2 L2:2-苯甲酰胺对苯二甲酸]是由H 2 L1或H 2 L2与不同的镧系元素盐在水热条件下反应合成的,并通过元素分析进行表征,红外光谱,X射线单晶衍射,粉末X射线衍射,热重分析和光致发光光谱。X射线衍射分析表明,骨架1-3具有类似类型的三维结构,由L1 2−配体和三核镧系元素结组成,其中存在两个晶体学上独立的镧系元素原子。框架4和5是同构的,特征在