摘要
以1∶2物质的量之比的Ag2O和Hpyca(异烟酸)为原料,在水热条件下得到了一个新颖的三维配位聚合物[Ag(pyca)]n·nH2O(1)。单晶X-射线结构分析表明,1晶体属于单斜晶系,P21/c空间群,1的空间堆积在沿a轴方向形成了大小为0.66nm×0.84nm的方形孔洞。1的固体室温荧光测试结果表明,在波长为469nm的光激发下于524nm处出现强烈的荧光发射。
The reaction of 4-pyridinecarboxylic acid (Hpyca) and Ag2O under hydrothermal condition with 1:1 metal/ligand mole ratio leads to a three-dimensional framework of [Ag(pyca)]n. nH2O (1) with one-dimensional open square channels along the a axis. X-ray single crystal structural analysis reveals that its crystallizes in monoclinic, space group P21/c with a=0.369 34(5), b=1.217 83(17), c=1.523 9(2) nm, β=90.100(2)°, V=0.685 44(16) nm^3, Z=4, Dc=2.403 g.cm^-3, F(000)=480, the final R1=0.038 9 and wR2=0.087 5 for 1 212 observed reflections with I≥2σ(I). The fluorescence spectrum of the coordination polymer exhibits intense emission at 524 nm when excited at 469 nm in solid state at room temperature. CCDC: 619217.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2006年第11期1977-1981,共5页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金资助项目(No.20371051)
广东省自然科学基金资助项目(No.04205405)。
关键词
水热合成
银(Ⅰ)配位聚合物
三维骨架
荧光性质
hydrothermal synthesis
Ag(Ⅰ) coordination polymer
three-dimensional framework
fluorescent property