具有（S-）和（R-）-2-苯丙酸的双核铽（III）和铕（III）配合物的圆偏振发光

Circularly polarized luminescence on dinuclear Tb(iii) and Eu(iii) complexes with (S-) and (R-) 2-phenylpropionate.

作者信息

Casanovas Berta, Zinna Francesco, Di Bari Lorenzo, El Fallah Mohamed Salah, Font-Bardía Mercè, Vicente Ramon

机构信息

Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.

出版信息

Dalton Trans. 2017 May 16;46(19):6349-6357. doi: 10.1039/c6dt04686j.

DOI:10.1039/c6dt04686j

PMID:28463348

Abstract

The reaction of Ln(NO)·6HO (Ln = Tb and Eu) with (S)-(+)-2-phenylpropionic acid (S-HL) and 1,10-phenanthroline (phen) in EtOH/HO allows the isolation of the dinuclear chiral compounds of the formula [Ln(S-L)(phen)]·2.5·S-HL in which Ln = Tb (S-1), Ln = Eu (S-2). The same synthesis by using (R)-(-)-2-phenylpropionic acid (R-HL) instead of (S)-(+)-2-phenylpropionic acid allows the isolation of the enantiomeric compounds with the formula [Ln(R-L)(phen)]·2.5·R-HL where Ln = Tb (R-1), Ln = Eu (R-2). All compounds show sensitized luminescence. The luminescence study, including the circularly polarized luminescence spectra of the four compounds, is reported. The magnetic behavior of S-1 and S-2 is also reported.

摘要

Ln(NO)·6HO（Ln = Tb和Eu）与(S)-(+)-2-苯丙酸（S-HL）和1,10-菲咯啉（phen）在乙醇/水中反应，可分离得到式为[Ln(S-L)(phen)]·2.5·S-HL的双核手性化合物，其中Ln = Tb（S-1），Ln = Eu（S-2）。使用(R)-(-)-2-苯丙酸（R-HL）代替(S)-(+)-2-苯丙酸进行相同的合成，可分离得到对映体化合物，其式为[Ln(R-L)(phen)]·2.5·R-HL，其中Ln = Tb（R-1），Ln = Eu（R-2）。所有化合物均显示出敏化发光。报道了包括这四种化合物的圆偏振发光光谱在内的发光研究。还报道了S-1和S-2的磁行为。