Two New MOFs Based on Cu<sub>2</sub>Paddlewheel Units and Biphenyltetracarboxylate Ligands with a Different Degree of Fluorination
作者:Carina Stastny、Uwe Ruschewitz
DOI:10.1002/zaac.201800399
日期:2018.12.31
frameworks), namely 3∞[Cu2(H2O)2(L)]·3DMF·H2O [L = 4‐fluoro‐biphenyl‐3,3′,5,5′‐tetracarboxylate (4‐mF‐BPTC4–) and 4,4′‐difluoro‐biphenyl‐3,3′,5,5′‐tetracarboxylate (4,4′‐dF‐BPTC4–)] termed UoC‐1(1F) and UoC‐1(2F) (UoC ≡ University of Cologne), were synthesized by solvothermal reactions in DMF. The crystal structure of UoC‐1(1F) was solved and refined from X‐ray single crystal data (Imma, Z = 4). The X‐ray
两个新的MOF(金属有机骨架),即3 ∞ [铜2(H 2 O)2(L)] · 3DMF · ħ 2 -O [L = 4-氟-联苯-3,3',5,5' -四羧酸盐(4 - mF - BPTC 4-)和4,4'-二氟联苯-3,3',5,5'-四羧酸盐(4,4'- dF - BPTC 4-)]称为UoC-1( 1F)和UoC-1(2F)(UoC≡科隆大学)是通过DMF中的溶剂热反应合成的。UoC-1(1F)的晶体结构已从X射线单晶数据(Imma,Z= 4)。UoC-1(2F)的X射线粉末衍射数据证实两个MOF都是同构的。BPTC 4–接头的四个羧酸根基团各自的晶体结构均与Cu 2桨轮单元有关,从而形成具有高孔隙率的3D结构,这已通过N 2气体吸附测量得到证实,揭示了S BET比表面积=在120°C激活72 h后,分别为1256 m 2 · g –1 [UoC-1(1F)]和1162 m 2 · g