Reaction of 6-methoxy-2,20-bipyridine (bpy6OMe) with the electron-rich platinum(II) complex [Pt(Me)2(DMSO)2] gave the rollover cyclometalated complex [Pt(k2-N,C-bpy6OMe-H) (Me) (DMSO)] under mild conditions. The occurrence of rollover cyclometalation was demonstrated by single crystal X-ray diffraction structure determination. In contrast, reaction of bpy6OMe with [Pt(Ph)2(DMSO)2] and [Pt(Cl)2(DMSO)2] under mild conditions gave only adduct species of the type [Pt(X)2(bpy6OMe)] (X ¼ Ph, Cl). Under harsher conditions, activation of a CeH bond in the methoxy substituent yielded the terdentate cyclometalated complex [Pt (k3-N,N,C-bpy6OMe-H)Cl]. Finally, reaction of Pd(II) and Au(III) derivatives invariably gave adduct species, with the exception of the dimeric complex [Pd(k2-N,C-bpy6OMe- H) (OAc)]2, which, however, was not isolated in pure form. The reactivity of bpy6OMe, as emerged from this study, was compared with that of the corresponding disubstituted ligand 6,60-dimethoxy-2,20- bipyridine, previously studied by us.

Platinum(II), palladium(II) and gold(III) adducts and cyclometalated derivatives of 6-methoxy-2,2’-bipyridine: A comparative study / Maidich, Luca; Cinellu, Maria Agostina; Cocco, Fabio; Stoccoro, Sergio; Sedda, Mondina; Galli, Simona; Zucca, Antonio. - In: JOURNAL OF ORGANOMETALLIC CHEMISTRY. - ISSN 0022-328X. - 819:(2016), pp. 76-86. [10.1016/j.jorganchem.2016.06.023]

Platinum(II), palladium(II) and gold(III) adducts and cyclometalated derivatives of 6-methoxy-2,2’-bipyridine: A comparative study

Maidich, Luca;Cinellu, Maria Agostina;Cocco, Fabio;Stoccoro, Sergio;Zucca, Antonio
2016-01-01

Abstract

Reaction of 6-methoxy-2,20-bipyridine (bpy6OMe) with the electron-rich platinum(II) complex [Pt(Me)2(DMSO)2] gave the rollover cyclometalated complex [Pt(k2-N,C-bpy6OMe-H) (Me) (DMSO)] under mild conditions. The occurrence of rollover cyclometalation was demonstrated by single crystal X-ray diffraction structure determination. In contrast, reaction of bpy6OMe with [Pt(Ph)2(DMSO)2] and [Pt(Cl)2(DMSO)2] under mild conditions gave only adduct species of the type [Pt(X)2(bpy6OMe)] (X ¼ Ph, Cl). Under harsher conditions, activation of a CeH bond in the methoxy substituent yielded the terdentate cyclometalated complex [Pt (k3-N,N,C-bpy6OMe-H)Cl]. Finally, reaction of Pd(II) and Au(III) derivatives invariably gave adduct species, with the exception of the dimeric complex [Pd(k2-N,C-bpy6OMe- H) (OAc)]2, which, however, was not isolated in pure form. The reactivity of bpy6OMe, as emerged from this study, was compared with that of the corresponding disubstituted ligand 6,60-dimethoxy-2,20- bipyridine, previously studied by us.
Platinum(II), palladium(II) and gold(III) adducts and cyclometalated derivatives of 6-methoxy-2,2’-bipyridine: A comparative study / Maidich, Luca; Cinellu, Maria Agostina; Cocco, Fabio; Stoccoro, Sergio; Sedda, Mondina; Galli, Simona; Zucca, Antonio. - In: JOURNAL OF ORGANOMETALLIC CHEMISTRY. - ISSN 0022-328X. - 819:(2016), pp. 76-86. [10.1016/j.jorganchem.2016.06.023]
File in questo prodotto:
File Dimensione Formato  
166199_zucca_Platinum.pdf

accesso aperto

Tipologia: Documento in Post-print (versione referata ma senza layout editoriale)
Licenza: Creative commons
Dimensione 1.96 MB
Formato Adobe PDF
1.96 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11388/166199
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 15
  • ???jsp.display-item.citation.isi??? 15
social impact