A novel chiral Salen ligand with a glucose moiety was synthesized from the condensation of 1,2:5,6-di-O-isopropylidene-3-O-methylene-5-(3-tert-butyl-2-hydroxy benzaldehyde) -α-D-glucofuranose with (1R,2R)-1,2-diamino...A novel chiral Salen ligand with a glucose moiety was synthesized from the condensation of 1,2:5,6-di-O-isopropylidene-3-O-methylene-5-(3-tert-butyl-2-hydroxy benzaldehyde) -α-D-glucofuranose with (1R,2R)-1,2-diaminocyclohexane. Several chiral complexes of Mn3+, Fe3+, Co2+ and Cu2+ were prepared from this ligand. Both the ligand and the complexes were characterized by elemental analysis, NMR, IR, MS, and UV-Vis.展开更多
一些重金属离子即使在较低浓度时也会对环境、生物体产生毒性,所以研究痕量金属离子识别具有重大意义。荧光传感器由于具有选择性好、灵敏度高、成本低、实时响应等优点,得到了广泛关注。以2,4-二叔丁基苯酚,3,5-二叔丁基水杨醛和邻氨...一些重金属离子即使在较低浓度时也会对环境、生物体产生毒性,所以研究痕量金属离子识别具有重大意义。荧光传感器由于具有选择性好、灵敏度高、成本低、实时响应等优点,得到了广泛关注。以2,4-二叔丁基苯酚,3,5-二叔丁基水杨醛和邻氨基苯硫酚为原料合成了类Salen配体L1,并用~1 H NMR,^(13)C NMR,IR,元素分析及X射线单晶衍射等手段对其进行了表征。并通过自由挥发法得到了配体L1的单晶结构,实验表明L1是三斜晶、P-1空间群的一个空穴平面[ONSO]四配位环境。通过荧光光谱考察了类Salen配体与金属离子(Li^+,Na^+,K^+,Cd^(2+),Cs^+,Co^(2+),Cu^(2+),Hg(2+),Mn^(2+),N^(2+),Zn^(2+),Ag^+)的识别与配位性能。光谱滴定分析表明L1与Zn^(2+)以1∶1的化学计量数配位。另外,L1与Zn^(2+)结合后荧光显著增强,荧光检测限达到5.01×10-5 mol·L^(-1),而上述提到的其他常见金属离子不引起荧光光谱变化。结果表明L1是一个对检测Zn2+的选择性高,灵敏度强的荧光增强型探针。展开更多
文摘A novel chiral Salen ligand with a glucose moiety was synthesized from the condensation of 1,2:5,6-di-O-isopropylidene-3-O-methylene-5-(3-tert-butyl-2-hydroxy benzaldehyde) -α-D-glucofuranose with (1R,2R)-1,2-diaminocyclohexane. Several chiral complexes of Mn3+, Fe3+, Co2+ and Cu2+ were prepared from this ligand. Both the ligand and the complexes were characterized by elemental analysis, NMR, IR, MS, and UV-Vis.
文摘一些重金属离子即使在较低浓度时也会对环境、生物体产生毒性,所以研究痕量金属离子识别具有重大意义。荧光传感器由于具有选择性好、灵敏度高、成本低、实时响应等优点,得到了广泛关注。以2,4-二叔丁基苯酚,3,5-二叔丁基水杨醛和邻氨基苯硫酚为原料合成了类Salen配体L1,并用~1 H NMR,^(13)C NMR,IR,元素分析及X射线单晶衍射等手段对其进行了表征。并通过自由挥发法得到了配体L1的单晶结构,实验表明L1是三斜晶、P-1空间群的一个空穴平面[ONSO]四配位环境。通过荧光光谱考察了类Salen配体与金属离子(Li^+,Na^+,K^+,Cd^(2+),Cs^+,Co^(2+),Cu^(2+),Hg(2+),Mn^(2+),N^(2+),Zn^(2+),Ag^+)的识别与配位性能。光谱滴定分析表明L1与Zn^(2+)以1∶1的化学计量数配位。另外,L1与Zn^(2+)结合后荧光显著增强,荧光检测限达到5.01×10-5 mol·L^(-1),而上述提到的其他常见金属离子不引起荧光光谱变化。结果表明L1是一个对检测Zn2+的选择性高,灵敏度强的荧光增强型探针。
