Verdazyl-based extended structures: synthesis, structures and magnetic properties of silver(i) one dimensional compounds
Pointillart, Fabrice; Train, Cyrille; Herson, Patrick; Marrot, J?r?me; Verdaguer, Michel; Pointillart Fabrice; Laboratoire de Chimie Inorganique et Matériaux Moléculaires, Unité CNRS 7071, IFR 2769, Université Pierre et Marie Curieâ Paris 6, 4 place Jussieu; Train Cyrille; Laboratoire de Chimie Inorganique et Matériaux Moléculaires, Unité CNRS 7071, IFR 2769, Université Pierre et Marie Curieâ Paris 6, 4 place Jussieu; Herson Patrick; Laboratoire de Chimie Inorganique et Matériaux Moléculaires, Unité CNRS 7071, IFR 2769, Université Pierre et Marie Curieâ Paris 6, 4 place Jussieu; Marrot Jérôme; Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles Saint-Quentin-en-Yvelines; Verdaguer Michel; Laboratoire de Chimie Inorganique et Matériaux Moléculaires, Unité CNRS 7071, IFR 2769, Université Pierre et Marie Curieâ Paris 6, 4 place Jussieu
Журнал:
New Journal of Chemistry
Дата:
2007
Аннотация:
The reactions of silver(i) perchlorate with 3-(4,6-dimethyl-2-pyrimidyl)-1,5-dimethyl-1,2,4,5-tetrazane 6-oxide and its oxidized form, the radical 3-(4,6-dimethyl-2-pyrimidyl)-1,5-dimethyl-6-oxoverdazyl, afford one-dimensional compounds 1 and 2. Single crystal X-ray diffraction shows that both compounds are built from cationic chains of silver(i) ions bridged by bidentate ligands. The one-dimensional objects are isolated from one another by perchlorate ions and solvent molecules. The oxidation state of the ligands is preserved during the reaction, even under aerobic conditions. The verdazyl derivative presents an intrachain antiferromagnetic exchange interaction J = â 7.5 cm<sup>â 1</sup> (H = â JΣSi·Si+1) between two radicals through the diamagnetic silver(i) ion.
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