Synthese und spektroskopische Eigenschaften von Alkylchinolin-8-ol-Extragenzien und deren Cu(II)-, Zn(II)- und Cd(II)-Komplexen

Abstract

Synthesis and Spectroscopic Properties of Alkylquinoline‐8‐ol Extractants and their Cu(II)‐, Zn(II)‐ and Cd(II)‐Complexes A series of deprotonizable chelating agents HL being characteristic of 2‐, 5‐ and 7‐alkyl substituted 8‐hydroxyquinolines or 5‐ and 7‐alkyl substituted 8‐hydroxyquinaldines of different alkyl chain length, H1–H5, and their Cu(II)‐, Zn(II)‐ und Cd(II)‐complexes, M(1)2–M(5)2, have been synthesized. Influences of the alkyl groups, including substituent effects on the spectroscopic properties (MS, IR, UV‐VIS, 1H und 13C NMR) of the free ligands and its complexes are studied.

Compounds Derived from 9,9‐Dialkylfluorenes: Syntheses, Crystal Structures and Initial Binding Studies (Part II)

“…Indium belongs to strategic elements and the development of complexing agents for indium ions, e. g., for use in solvent extractions, [19a–g] is of great importance. Furthermore, the detection of In 3+ is also important [20] because of its toxicity [20,21a–c] .…”

Synthesis and Properties of Polyfluorohydroxyacridines and Their Zn2+ Complexes: New Materials for Solid State Emitting Systems

“…4 Polyfluorohydroxyacridines are easily deprotonated by weak organic bases, thus for the synthesis of complexes of Zn 2+ we have used zinc acetate, using a standard technique already exploited for the synthesis of similar complexes. 35 The optical properties of the complexes of polyfluorohydroxyacridine with Zn 2+ were studied by absorption and photoluminescence both in solution and in the solid state. When the complexes of polifluorohydroxyacridine with Zn 2+ are dissolved in organic solvents, a partial hydrolysis of the complex to give back the free ligand is observed.…”

Preorganized Complexing Agents as a Tool for Selective Solvent Extraction Processes

“…The second way to improve the extraction capability is to change the alkyl substituent from the 7 position to the 2 position of the quinoline molecule, as has been done in compound 6 with a nonyl substituent gives the results of comperative solvent extraction experiments for 8-hydroxyquinolines 5 and 6 .…”