Rocchi, Federico
(2017)
Triazolilideni funzionalizzati come versatili carbeni mesoionici in complessi luminescenti.
[Laurea magistrale], Università di Bologna, Corso di Studio in
Chimica industriale [LM-DM270]
Documenti full-text disponibili:
![[img]](http://amslaurea.unibo.it/style/images/fileicons/application_pdf.png) |
Documento PDF (Thesis)
Disponibile con Licenza: Salvo eventuali più ampie autorizzazioni dell'autore, la tesi può essere liberamente consultata e può essere effettuato il salvataggio e la stampa di una copia per fini strettamente personali di studio, di ricerca e di insegnamento, con espresso divieto di qualunque utilizzo direttamente o indirettamente commerciale. Ogni altro diritto sul materiale è riservato
Download (1MB)
|
Abstract
1,2,3-Triazolylidenes belong to the class of abnormal N-heterocyclic carbenes, which are singlet carbenes with the carbonic center directly bound to at least one nitrogen atom of the heterocycle, and no uncharged resonance structure can be drawn. Since their precursors synthesis is quite simple and it allows the variation of the substituents on the triazolic ring, the use of 1,2,3-triazolylidenes as bidentate ligands for appropriate metallic complexes is very interesting. In the present work I report the synthesis of 1,2,3-triazolium salts 1-benzyl-3-methyl-4-(pyridin-2-yl)-1H-1,2,3-triazol-3-ium (L1-X), 3-methyl-1-phenyl-4-(pyridin-2-yl)-1H-1,2,3-triazol-3-ium (L2-X) (X=OTf, I) and 1,1'-dibenzyl-3-methyl-1H,1'H-[4,4'-bi(1,2,3-triazol)]-3-ium iodide (L3-I), that after the formation of the corresponding triazolylidenes have been employed as bidentate ancillary ligands for the synthesis of three cationic Ir(III) complexes (A-BF4, B-BF4 e C-BF4) and a neutral one (D).
The synthetized complexes were characterized with NMR spectroscopy, and DFT computational calculations have been performed to compare, once photophysical characterization has been made, the obtained results with experimental measures.
Abstract
1,2,3-Triazolylidenes belong to the class of abnormal N-heterocyclic carbenes, which are singlet carbenes with the carbonic center directly bound to at least one nitrogen atom of the heterocycle, and no uncharged resonance structure can be drawn. Since their precursors synthesis is quite simple and it allows the variation of the substituents on the triazolic ring, the use of 1,2,3-triazolylidenes as bidentate ligands for appropriate metallic complexes is very interesting. In the present work I report the synthesis of 1,2,3-triazolium salts 1-benzyl-3-methyl-4-(pyridin-2-yl)-1H-1,2,3-triazol-3-ium (L1-X), 3-methyl-1-phenyl-4-(pyridin-2-yl)-1H-1,2,3-triazol-3-ium (L2-X) (X=OTf, I) and 1,1'-dibenzyl-3-methyl-1H,1'H-[4,4'-bi(1,2,3-triazol)]-3-ium iodide (L3-I), that after the formation of the corresponding triazolylidenes have been employed as bidentate ancillary ligands for the synthesis of three cationic Ir(III) complexes (A-BF4, B-BF4 e C-BF4) and a neutral one (D).
The synthetized complexes were characterized with NMR spectroscopy, and DFT computational calculations have been performed to compare, once photophysical characterization has been made, the obtained results with experimental measures.
Tipologia del documento
Tesi di laurea
(Laurea magistrale)
Autore della tesi
Rocchi, Federico
Relatore della tesi
Correlatore della tesi
Scuola
Corso di studio
Ordinamento Cds
DM270
Parole chiave
1-2-3-triazolilideni Ir(III)-complessi luminescenza
Data di discussione della Tesi
10 Ottobre 2017
URI
Altri metadati
Tipologia del documento
Tesi di laurea
(NON SPECIFICATO)
Autore della tesi
Rocchi, Federico
Relatore della tesi
Correlatore della tesi
Scuola
Corso di studio
Ordinamento Cds
DM270
Parole chiave
1-2-3-triazolilideni Ir(III)-complessi luminescenza
Data di discussione della Tesi
10 Ottobre 2017
URI
Statistica sui download
Gestione del documento: