Cretu Carmen; Aparaschivei Diana; Badea Valentin; Szerb Elisabeta I.; Costisor Otilia: Behavior of bipyridine derivative Cu(I) complexes in donor solvents.
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Absztrakt (kivonat)
Cu(I) complexes are known as highly emissive compounds having interesting fluorescence applications[1].Theluminescence is generated by more intense metal to ligand charge transfer (MLCT) electronic transitions for Cu(I), affording longer excited-statelifetimes compared to transient d-d excited state of Cu(II)[2].Herein we report the behavior of two bipyridine derivative Cu(I) complexes containing phenanthroline and biquinoline ligands, respectively, in donor solvents as dimethylsulfoxide and acetonitrile.The Cu(I) phenanthroline complex (1) is unstable in solution,due to oxidation of Cu(I) to Cu(II) in time, accompanied by change in coordination geometry from tetrahedral to trigonal bipyramidal. The Cu(I) biquinoline complex (2) is more stable in donor solvents,the stability increasing at low temperatures with the stabilization of tetragonal geometry of Cu(I).In case of biquinoline ligand, this kind of geometry is stabilized by the bulky aryl substituentsatαposition with respect to the pyridine nitrogen.
| Mű típusa: | Konferencia vagy workshop anyag |
|---|---|
| Befoglaló folyóirat/kiadvány címe: | Proceedings of the International Symposium on Analytical and Environmental Problems |
| Dátum: | 2016 |
| Kötet: | 22 |
| ISBN: | 978-963-306-507-5 |
| Oldalak: | p. 111 |
| Konferencia neve: | International Symposium on Analytical and Environmental Problems (22.) (2016) (Szeged) |
| Befoglaló mű URL: | http://acta.bibl.u-szeged.hu/55893/ |
| Kulcsszavak: | Kémia - előadáskivonat |
| Megjegyzések: | Bibliogr.: 111. p. ; összefoglalás angol nyelven |
| Feltöltés dátuma: | 2018. dec. 11. 13:52 |
| Utolsó módosítás: | 2022. aug. 08. 15:48 |
| URI: | http://acta.bibl.u-szeged.hu/id/eprint/56049 |
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