【摘要】 利用2,6-二(1-咪唑基)萘(L)和二羧酸配体与过渡金属盐反应,通过溶剂热法合成了3个新颖的金属有机框架化合物(MOFs):[Co(L)(AIP)]·2DMF (1),[Co(L)(AIP)]·DMF (2)和[Co(L)(IDC)(H2O)2]·0.5L·H2O (3)(H2AIP=5-氨基间苯二甲酸,H2IDC=4,4′-亚氨基二苯甲酸)。利用元素分析、红外、X射线单晶和粉末衍射、热重分析等对MOFs进行了表征。单晶结构解析结果表明:1属于单斜晶系C2/c空间群,2和3属于三斜晶系P1空间群。1和3均为一维的链状结构,2为二维的层状结构,三者通过氢键作用形成三维超分子结构。此外,对MOFs的热稳定性和荧光性质进行了研究,发现3通过荧光猝灭对丙酮分子具有识别作用。更多还原

【Abstract】 Reactions of 2,6-di(1 H-imidazol-1-yl)naphthalene(L) and dicarboxylic acid ligands with corresponding metal salts under solvothermal conditions gave rise to three new metal-organic frameworks(MOFs) [Co(L)(AIP)]·2 DMF(1),[Co(L)(AIP)]·DMF(2) and [Co(L)(IDC)(H2 O)2]·0.5 L·H2 O(3)(H2 AIP=5-aminoisophthalic acid,H2 IDC=4,4′-iminodibenzoic acid). The MOFs have been structurally characterized by single-crystal and powder X-ray diffraction analyses, elemental analyses, infrared spectra(IR) and thermogravimetric analysis(TGA). MOF 1 crystallizes in monoclinic space group C2/c, while 2 and 3 are triclinic space group P1. MOFs 1 and 3 have distinct infinite one-dimensional(1 D) chain structures, and 2 is a two-dimensional(2 D) network, which are further linked together by hydrogen bonding interactions to give the eventual three-dimensional(3 D)supramolecular architectures. Furthermore, the thermal stability and photoluminescence property of the MOFs were investigated, and it was found that 3 can efficiently detect acetone molecules via fluorescent quenching.CCDC: 1949785, 1; 1949786, 2; 1949787, 3.更多还原