期刊
POLYHEDRON
卷 150, 期 -, 页码 97-109出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2018.04.045
关键词
Isonicotinates; Nicotinates; Picolinates; Lanthanides; Pyridinecarboxylic acid
资金
- funds for science MNiSW
- European Union [POPW.01.03.00-20-034/09-00]
The effect of 14 lanthanides on the structure and the electronic system of isonicotinic acid was studied using IR (KBr), IR (ATR), Raman, UV-Vis, spectrofluorometric, elemental analysis and thermogravimetric (TG/DTG) methods. The influence of the lanthanides ions on the electronic charge distribution of the ligand is discussed. The nephelauxetic parameters and the degree of covalency in the lanthanide-ligand bonds were established. Moreover, the molecular structures of the lanthanide complexes with isonicotinic, nicotinic, picolinic and benzoic acids were compared, with a particular emphasis on the changes within the aromatic ring of metal complexes. (C) 2018 Elsevier Ltd. All rights reserved.
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