Coordination studies of copper(II), nickel(II), cobalt(II) and zinc(II) salts with pyridyl–tetrazole ligands containing alkyl or alkyl halide pendant arms
作者:Ursula Sheridan、John McGinley、John F. Gallagher、Adrienne Fleming、Fintan Kelleher
DOI:10.1016/j.poly.2013.04.025
日期:2013.8
methanol and resulted in complexes containing a 1:1 metal:ligand stoichiometry except in the cases of the cobaltcomplexes where a 1:2 metal:ligand stoichiometry was obtained. The 1 H NMR spectra of the zinccomplexes showed that the ligands containing the pendant arm in the 2-N position of the tetrazole ring bind the zinc ion more strongly than those containing the pendant arm in the 1-N position.
锌配合物的1 H NMR谱表明,在四唑环的2-N位上含有侧链的配体比在1-N位上含有侧链的配体更牢固地结合锌离子。还讨论了两种钴盐Co(L5A)2(NCS)2和Co(L5C)2(NCS)2的X射线结构。
Synthesis and characterisation of macromolecules containing multiple tetrazole functionalities
The synthesis of tetra-tetrazole macromolecules, containing various aromatic cores including benzene, pyridine and pyrazine directly attached to the tetrazole moieties, is described. This variation allowed for the generation of ligands with greater potential for metal ion complexation. Metal ion complexation reactions of the tetra-tetrazole macromolecules with the chelating pyridyl-tetrazole arms result in the formation of metal complexes where the metal ion was bound at the pendant arms rather than at the central core. (C) 2012 Elsevier Ltd. All rights reserved.