TEMPLATE SYNTHESES AND PROPERTIES OF COPPER(II)-LANTHANIDE(III) COMPLEXES OF PHENOL-BASED SYMMETRIC AND UNSYMMETRIC DINUCLEATING MACROCYCLES
TEMPLATE SYNTHESES AND PROPERTIES OF COPPER(II)-LANTHANIDE(III) COMPLEXES OF PHENOL-BASED SYMMETRIC AND UNSYMMETRIC DINUCLEATING MACROCYCLES
复制标题
酚基对称和不对称双核大环铜(II)-镧系元素(III)配合物的模板合成及性能
DOI：
10.1080/00958979908024359
复制
发表时间：
1999
影响因子：
1.9
通讯作者：
H. Ōkawa
中科院分区：
文献类型：
--
作者：
Kazuhiro Manseki;Yasutaka Kitakami;M. Sakamoto;H. Sakiyama;A. Matsumoto;Y. Sadaoka;Y. Nishida;M. Sakai;Y. Fukuda;M. Ohba;H. Ōkawa
抽象的铜(II) ln (III)复合物的H2 (fsal-n, m) ((n, m =(2、3),(2)(3);Ln =镧系元素),fsal-n,m-Cu。Ln，通过模板反应合成，其中fsal-n， m2 -表示在亚氮上通过-(CH2)n-和-(CH2)m-两条侧链与两个2,6-二（亚甲基）-4-甲基苯酚实体相结合的大环。Cu(II)-Gd（III）配合物磁化率的温度依赖性表明，fsal-2,3-Cu，Gd和fsal-3,2-Cu，Gd中Cu（II）和Gd（III）离子之间存在分子间铁磁相互作用。吸收光谱表明，具有N-和o -给基的底物（如醇）在fsal-2,3- cu，Ln的Cu-Ln中心被特异性结合。通过氮到达铜的位置通过氧到达镧系元素的位置。在Cu-Eu络合物形成过程中，Eu（III）的荧光强度急剧下降。
Abstract Cu(II)-Ln(III) complexes of H2(fsal-n,m) ((n,m = (2,3), (3,2) (3,3); Ln = Lanthanide), fsal-n,m-Cu.Ln, have been synthesized by a template reaction, where fsal-n,m 2- denotes inculcating macrocycles with two 2,6-bis(iminomethyl)-4-methylphenolate entities combined through two lateral chains, -(CH2)n- and -(CH2)m-, at the iminonitrogens. Temperature dependences of magnetic susceptibilities for the Cu(II)-Gd(III) complexes showed that an intermolecular ferromagnetic interaction operates between Cu(II) and Gd(III) ions in fsal-2,3-Cu,Gd and fsal-3,2-Cu,Gd. Absorption spectra suggested that substrates possessing N- and O-donor groups such alcohols are specifically bound at the Cu-Ln center of fsal-2,3-Cu,Ln. through the nitrogen to the copper site and through the oxygen to the lanthanide site. The fluorescence intensity of Eu(III) decreased drastically on forming the Cu-Eu complex.