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。
Reactions of 2,6-di(1H-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)]·2DMF (1),[Co(L)(AIP)]·DMF (2) and [Co(L)(IDC)(H2O)2]·0.5L·H2O (3)(H2AIP=5-aminoisophthalic acid,H2IDC=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 (1D) chain structures, and 2 is a two-dimensional (2D) network, which are further linked together by hydrogen bonding interactions to give the eventual three-dimensional (3D) 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.
作者
刘志强
曹师虎
张哲
武峻峰
赵越
孙为银
LIU Zhi-Qiang;CAO Shi-Hu;ZHANG Zhe;WU Jun-Feng;ZHAO Yue;SUN Wei-Yin(School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Functional Optical,Electrical and Magnetic Materials, Key Laboratory of Functional Coordination Compounds and Nano Materialsof Anhui Higher Education Institutes, Anqing Normal University, Anqing, Anhui 246011, China;State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China)
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2019年第11期2145-2151,共7页
Chinese Journal of Inorganic Chemistry
基金
安徽省自然科学基金(No.1908085QB47)
安徽高校自然科学研究重点项目(No.KJ2018A0371)
配位化学国家重点实验室开放课题(No.SKLCC1906)资助
