论文部分内容阅读
Two multiamide calyx[4].arenas(5,6)were synthesized and characterized by IR,1H NMR,MS and elemental analysis.The binding properties of receptors with some anions (p-O2NphOpO2-3,p-O2NphO-,H2PO-4,Ac-,CI-,Br- and I-)Were studied by UV-Vis spectra.The results indicate that the tetraamide calix[4]arenas (5,6) have a good selectivity to the anions containing aromatic ring (p-O2NphOpO2-3,p-O2NphO-).The 1:1 complexes between host and guest were formed through multiple hydrogen bonding and π-π interactions.The hosts 5 and 6 also show a definite binding ability for the anions (H2PO-4,Ac-,CI-) that have no ultraviolet absorption,which provides a simple method of spectrum detection for these anions.
Two multiamide calyx [4] .arenas (5,6) were synthesized and characterized by IR, 1H NMR, MS and elemental analysis. The binding properties of receptors with some anions (p-O2NphOpO2-3, p-O2NphO-, H2PO- 4, Ac-, CI-, Br- and I-) Were studied by UV-Vis spectra. Results that results that the tetraamide calix [4] arenas (5,6) have a good selectivity to the anions containing aromatic ring -O2NphOpO2-3, p-O2NphO -). The 1: 1 complexes between host and guest were formed through multiple hydrogen bonding and π-π interactions.The hosts 5 and 6 also show a definite binding ability for the anions (H2PO-4 , Ac-, CI-) that have no ultraviolet absorption, which provides a simple method of spectrum detection for these anions.