【摘要】 通过实验条件的改变,成功地合成了2-(3-吡啶基)-1,4,5,6-四氢嘧啶(M1)和2-(4-吡啶基)-六氢嘧啶(M2)两个分子,通过其与硝酸根离子的组装,得到了两个全新的超分子化合物HM1+·NO3-(1)和HM2+·NO3-(2),并对其进行了元素分析、红外光谱、荧光光谱、单晶及粉末X射线衍射等表征。结果表明,在两种化合物中,M1和M2均发生了单质子化作用,并通过分子间的N-H…O/N氢键作用,形成了不同结构类型的超分子晶态网络化合物。此外,这两个超分子化合物在室温下分别表现出较强的蓝色(460 nm)和蓝绿色(502 nm)荧光发射。更多还原

【Abstract】 Two molecules,2-( pyridin-3-yl)-1,4,5,6-tetrahydropyrimidine( M1) and 2-( pyridin-4-yl)hexahydropyrimidine( M2),have been synthesized by changing the experimental conditions,which are employed to react with nitrate ion to afford two new supramolecular compounds HM1+·NO3-( 1) and HM2+·NO3-( 2). These two compounds have been further characterized by elemental analysis,infrared spectra analysis,photoluminescent spectra analysis,powder and single-crystal X-ray diffraction. Structural analyses indicate that both the M1 and M2 molecules in the two compounds have been monoprotonated,which lead to diverse supramolecular network structures through the intermolecular N-H…O/N hydrogen-bonding interactions. In addition,these compounds exhibit strong blue( 460 nm) and cyan emission( 502 nm) in solid state at room temperature.更多还原