【摘要】：以2,5-呋喃二羧酸和六水硝酸鋅/四水硝酸鎘為原料,在溶劑熱條件下,合成出2個金屬有機配位聚合物,[Zn(FDC)(DMF)2]n(1)和{(Me2NH2)2[Cd2(FDC)3(H_2O)2]·4H_2O}n(2)(H2FDC=2,5-呋喃二甲酸,DMF=N,N-二甲基甲酰胺)。通過元素分析、紅外光譜、差熱分析、X射線粉末衍射和X射線單晶衍射等手段對配合物進行了結(jié)構(gòu)表征。結(jié)果顯示,化合物1為一維鏈結(jié)構(gòu),通過分子間氫鍵作用構(gòu)筑成二維結(jié)構(gòu);而2為二維(4,4)網(wǎng)絡(luò)結(jié)構(gòu)。熱穩(wěn)定性表明化合物1脫去DMF配體后穩(wěn)定到300℃;而2脫去配體水、陰離子和溶劑分子后結(jié)構(gòu)立即發(fā)生坍塌。常溫固態(tài)下,激發(fā)波長分別為303和350 nm時考察了配合物1和2的熒光性質(zhì),結(jié)果顯示2個化合物均發(fā)射藍色熒光(λmax=406,470 nm),熒光壽命分別為76.2和138.1 ns。
[Abstract]:Two organometallic coordination polymers [Zn (FDC) (DMF) _ 2] n (1) and {(Me2NH2) _ 2 [Cd2 (FDC) _ 3 (H _ 2O) _ 2] 4H_2O} n (2) (H _ 2F _ (DC) _ (25) -furanediformic acid, DMF=N,N- dimethyl formamide) were synthesized by using 2H _ (5-furan) dicarboxylic acid and zinc nitrate hexahydrate / cadmium nitrate tetrahydrate as raw materials under solvothermal conditions. [Zn (FDC) (DMF) _ 2] n (1) and {(Me2NH2) _ 2 [Cd2 (FDC) _ 3 (H _ 2O) _ 2] 4H_2O} n (2) were synthesized. The structures of the complexes were characterized by elemental analysis, infrared spectroscopy, differential thermal analysis, X-ray powder diffraction and X-ray single crystal diffraction. The results show that compound 1 is a one-dimensional chain structure, which is constructed by intermolecular hydrogen bonding, and 2 is a two-dimensional (4n4) network structure. The thermal stability indicated that compound 1 was stable to 300 鈩，

本文編號：2288210