multifunctional organic ligands with multiple acidic groups (carboxylate and sulfonate groups) to synthesize metal–organic frameworks (MOFs) bearing effective H-bond networks is a promising strategy to obtain highly proton conductive materials. In this work, a highly stable two-dimensional MOF, [CuII5CuI2(μ3-OH)4(H2O)6(L)2(H2L)2]·3H2O (denoted as YCu161; H3L = 6-sulfonaphthalene-1,4-dicarboxylic acid) containing
使用具有多个酸性基团(羧酸根和磺酸根)的多功能有机配体来合成具有有效氢键网络的金属有机骨架(MOF)是获得高质子导电材料的一种很有前景的策略。在这项工作中,高度稳定的二维 MOF,[Cu II 5 Cu I 2 (μ 3 -OH) 4 (H 2 O) 6 (L) 2 (H 2 L) 2 ]·3H 2 O(表示为YCu161 ; H 3 L = 6-磺萘-1,4-二羧酸) 含有混合价 [Cu II 5 Cu I2 (μ 3 -OH) 4 ] 8+亚基制备成功。它表现出优异的稳定性和温度和湿度相关的质子传导特性。其最佳质子电导率达到 1.84 × 10 –3 S cm –1在 90 °C 和 98% 的相对湿度下。在晶体结构分析、水蒸气吸附试验结果和活化能计算的基础上,我们推导出质子传导途径和机制。显然,未配位的磺酸基和羧基以及框架内丰富的氢键网络是有效质子转移的原因。因此,选择合适的双功能配
pH-Dependent Dual-Mode Detection toward Uranium by a Zinc-Tetraphenylethylene Fluorescent Metal–Organic Framework
作者:Jianbo Xiong、Jie Chen、Shunqing Li、Jian Cao、Le Luo、Xiongbin Duan、Qiang Gao、Xiaolan Tong、Feng Luo
DOI:10.1021/acs.inorgchem.3c02150
日期:2023.10.30
An interpenetrated tetraphenylethylene-basedfluorescentmetal–organicframework (ECUT-180) with exceptional sensitivity, excellent selectivity, and fast response (less than 30 s) toward uranium was successfully prepared. Especially, in the prescence of uranyl, ECUT-180 displays significant fluorescence turn-on under pH 2–3, while fluorescence turn-off under pH 4–8. The corresponding detection limits
Pure separation of acetylene based on a sulfonic acid and amino group functionalized Zn-MOF
作者:Yu-Xin Deng、Guo-Ping Yang、Yao-Yu Wang
DOI:10.1039/d4cc00863d
日期:——
The dual-ligand strategy was employed to synthesize a new microporous material, [Zn3(SNDC)(AmTAZ)3(H2O)]·H2O·CH3CN (1), incorporating sulfonic acid and amino groups for enhancing gas adsorption and separation. The activated 1 (named 1a) exhibited selectiveadsorption of acetyleneovercarbondioxide and methane. Hence, the dual-ligand strategy optimized the pore environment and provided an effective