How Does the Fluorination of the Linker Affect the Stability of Trimesate-Based Coordination Polymers and Metal–Organic Frameworks?
作者:John Krautwurst、Daniel Smets、Rainer Lamann、Uwe Ruschewitz
DOI:10.1021/acs.inorgchem.9b00940
日期:2019.7.1
the resulting coordination polymers and metal–organic frameworks (MOFs). The monopotassium salts show a decreasing (chemical) stability in water upon heating, as well as a decreasing thermal stability, as evidenced by differential scanning calorimetry/thermogravimetric analysis (DSC/TGA). A similar decreasing thermal stability is found for two series of isostructural coordination polymers (UHM-33 topology:
给出了二氟和三/全氟均苯三酸(1,3,5-苯三甲酸≡H 3 BTC)的单钾盐的合成和晶体结构,即K(H 2 dF -BTC)(Fdd 2,Z = 16)和K(H 2 pF -BTC)(Cc,Z = 4)。首次与已知的K(H 2 mF-BTC),均苯三酸的所有氟化度都是可及的,并可用于系统研究氟化对所得配位聚合物和金属有机骨架(MOF)稳定性的影响。如通过差示扫描量热法/热重分析(DSC / TGA)所证明的,单钾盐在加热时在水中显示出降低的(化学)稳定性,以及在降低的热稳定性。类似的降低的热稳定性找到用于两个系列等结构的配位聚合物(UHM-33拓扑:∞ 2 [的Cu 2(L)2(DMA)2 ]·2DMA与L- 2- = H μF的-BTC 2-和H DF -比特币2-)和的MOF(∞ 3 [巴(L)(H 2 O)2 ]· 1 / 2 H ^ 2 ö与L- 2- = HBTC 2-, ħ μF的-BTC