Open AccessSpectroscopic Properties of the Ln-Ge Complexes with Diethylenetriaminepentaacetic Acid
Author(s) -
Sergiy Smola,
Natalya Rusakova,
Е. Э. Марцинко,
І. Й. Сейфулліна,
Yuriy Korovin
Publication year - 2007
Publication title -
chemistry journal of moldova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.275
H-Index - 5
eISSN - 2345-1688
pISSN - 1857-1727
DOI - 10.19261/cjm.2007.02(1).10
Subject(s) - heteronuclear molecule , homonuclear molecule , chemistry , terbium , europium , lanthanide , luminescence , dysprosium , samarium , inorganic chemistry , ion , molecule , organic chemistry , materials science , optoelectronics
Four new heteronuclear lanthanide complexes with general formula [Ge(OH)(μ-HDTPA)LnGe(OH) (μ-DTPA)] (Ln = Sm – Dy) were synthesized and subsequently characterized by different physico- chemical methods. The structures of new compounds have been proposed. In considered complexes the 4f-luminescence of three-charged ions of samarium, europium, terbium and dysprosium is realized at UV-excitation. It is noteworthy that it is the first observation of 4f-luminescence in water solutions of heteronuclear f-p-complexes. The comparison of luminescent characteristics of hetero- and homonuclear landthanide complexes is described and discussed as well.