摘要
Enantiomerically pure lanthanide(Ⅲ)-based phosphonates are successfully synthesized by using(R)-or(S)-(1-phenylethylamino)-methylphosphonate acid(pempH2),namely,R-or S-[Tb3(pempH2)2(pempH)7]-Cl2·H2O(R-Tb or S-Tb),crystallizing in chiral space group P212121.Compound R-Tb shows a one-dimensional homochiral triple-stranded helical chain structure where the Tb(III)atoms are bridged by O-P-O units andμ3-O(P)bridge.The thermal analysis,photoluminescence as well as optically active properties of compounds R-Tb and S-Tb have also been investigated.
基金
supported financially by Jiangsu Higher Education Institutions of China (18KJB150030)。
