TY - JOUR
T1 - Template syntheses and properties of copper(II)-lanthanide(III) complexes of phenol-based symmetric and unsymmetric dinucleating macrocycles
AU - Manseki, Kazuhiro
AU - Kitakami, Yasutaka
AU - Sakamoto, Masatomi
AU - Sakiyama, Hiroshi
AU - Matsumoto, Akira
AU - Sadaoka, Yoshihiko
AU - Nishida, Yuzo
AU - Sakai, Masahiro
AU - Fukuda, Yutaka
AU - Ohba, Masaaki
AU - Õkawa, Hisashi
PY - 1999
Y1 - 1999
N2 - 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,m2- denotes dinucleating macrocycles with two 2,6-6bis(iminomethyl)-4-methylphenolate entities combined through two lateral chains, -(CH2)n- and -(CH2)m-, at the imino nitrogens. Temperature dependences of magnetic susceptibilities for the Cu(II)-Gd(III) complexes showed that an intramolecular 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 as amino alcohols are specifically bound at the Cu-Ln centre 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.
AB - 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,m2- denotes dinucleating macrocycles with two 2,6-6bis(iminomethyl)-4-methylphenolate entities combined through two lateral chains, -(CH2)n- and -(CH2)m-, at the imino nitrogens. Temperature dependences of magnetic susceptibilities for the Cu(II)-Gd(III) complexes showed that an intramolecular 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 as amino alcohols are specifically bound at the Cu-Ln centre 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.
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U2 - 10.1080/00958979908024359
DO - 10.1080/00958979908024359
M3 - Article
AN - SCOPUS:0002955532
VL - 48
SP - 1
EP - 13
JO - Journal of Coordination Chemistry
JF - Journal of Coordination Chemistry
SN - 0095-8972
IS - 1
ER -