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Isoreticular Design of Two Novel Metal Organic Frameworks and Their Single-Crystal-to-Single-Crystal Solvent Exchange Properties
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2020-10-30 , DOI: 10.1021/acs.cgd.0c01108
Andreas Kourtellaris 1, 2 , Marios S. Markoulides 1 , Nikos Chronakis 1 , Simon J. Teat 3 , John C. Plakatouras 1, 4, 5 , Anastasios J. Tasiopoulos 1
Affiliation  

The rational design and synthesis of two novel MOFs based on the Schiff base ligand 5-({[4′-carboxy-(1,1′-biphenyl)-4-yl]methylene}amino)isophthalic acid (CBIPH3) formulated as [Cd3(CBIP)2(DMF)(H2O)2]n·8nDMF·4nH2O, (1)·8nDMF·4nH2O, and [Nd(CΒΙP)(DMF)(H2O)]n·1.5nDMF·3nH2O, (2)·1.5nDMF·3nH2O, are reported. The ligand CΒΙPH3 is an extended version of 5-[(4-carboxybenzylidene)amino]isophthalic acid (CIPH3) used previously by our group and was designed to isolate isoreticular analogues of compounds [Cd3(CIP)2(DMF)3] (UCY-3) and [Nd2(CIP)2(DMF)2.8(H2O)1.2] (UCY-2) which are known to possess interesting single-crystal-to-single-crystal (SCSC) transformation properties. Indeed, this goal was achieved, giving rise to the formation of 1·8nDMF·4nH2O and 2·1.5nDMF·3nH2O exhibiting 3-D microporous structures. Compound 2 was proven to display significant flexibility and capability to exchange, via SCSC transformation reactions, both the coordinated solvent molecules with N-methylpyrrolidone (NMP) and the lattice solvent molecules with aromatic hydrocarbons (benzene, toluene, o- and m-xylene). As a result, five SCSC modified products were additionally characterized crystallographically. The topological features of the reported compounds and the effect of the SCSC solvent exchange reactions on the structural characteristics of the pristine material are discussed in detail.

中文翻译:

两种新型金属有机骨架的等规相设计及其单晶至单晶溶剂交换性能

基于希夫碱配体5-({[[4'-羧基-(1,1'-联苯)-4-基]亚甲基}氨基)间苯二甲酸(CBIPH 3)的两种新型MOF的合理设计和合成[Cd 3(CBIP)2(DMF)(H 2 O)2 ] n ·8 n DMF·4 n H 2 O,(1)·8 n DMF·4 n H 2 O和[Nd(CΒIP)( DMF)(H 2 O)] n ·1.5 n DMF·3 n H 2 O,(2)·1.5 n DMF·3 n H2 O的报道。配体C 1PH 3是5-[(4-羧基亚苄基)氨基]间苯二甲酸(CIPH 3)的扩展形式,以前由我们的研究小组使用,被设计用于分离化合物[Cd 3(CIP)2(DMF)3 ](UCY-3)和[Nd 2(CIP)2(DMF)2.8(H 2 O)1.2 ](UCY-2),它们具有令人感兴趣的单晶到单晶(SCSC)转换特性。确实,达到了这一目标,导致形成了1 ·8 n DMF·4 n H 2 O和2 ·1.5 Ñ DMF·3 Ñ ħ 2 ö参展3-d的微孔结构。化合物2被证明显示显著灵活性和能力交换,经由SCSC转化反应,既与协调溶剂分子Ñ甲基吡咯烷酮(NMP)和晶格溶剂与芳烃分子(苯,甲苯,ö -和二甲苯) 。结果,另外在结晶学上表征了五个SCSC改性产物。详细讨论了所报道化合物的拓扑特征以及SCSC溶剂交换反应对原始材料结构特征的影响。
更新日期:2020-12-02
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