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作 者:LIU Shunying WANG Fajun WEI Lanhua XIAO Wang MENG Lingzhi HE Yongbing
出 处:《Science China Chemistry》2004年第2期145-151,共7页中国科学(化学英文版)
基 金:This work was supported by the National Natural Science Foundation of China(Grant No.20072029).
摘 要:Two multiamide calix[4]arenes (5, 6) were synthesized and characterized by NMR, MS and elemental analysis. The binding properties of receptors with some anions (π-O2NPhOPO 3 2? , π-O2NPhO?, H2PO 4 ? , Ac?, Cl?, Br? and I?) were studied by UV-Vis spectra. The results indicate that the tetraamide calix[4]arenes (5, 6) have a good selectivity to the anions containing aromatic ring (π-O2NPhOPO3 2?, π-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?, Cl?) 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.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.
关 键 词:multiple AMIDE arene NEUTRAL ANION receptor synthesis ANION recognition UV-VIS spectrum.
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