Peripherally Metallated Porphyrins: the First Examples of meso-η1-Palladio(II) and -Platinio(II) Complexes with Chelating Diamine Ligands

✍ Scribed by Regan D. Hartnell; Dennis P. Arnold

• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 147 KB
• Volume: 2004
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/ejic.200300600

✦ Synopsis

Abstract

The oxidative addition of bis(dibenzylideneacetone)platinum(0) to meso‐bromo‐5,15‐diarylporphyrins in the presence of PPh~3~ has been shown to be an effective way of synthesising η^1^‐organoplatinum porphyrins in high yields. This methodology has been extended to synthesise various palladio‐ and platinioporphyrins that utilise bidentate nitrogen donor ligands [N,N,N′,N′‐tetramethylethylenediamine (tmeda) and 2,2′‐bipyridyl (bpy)] in order to enforce a cis configuration at the metal centre. The products were characterised by multinuclear NMR and UV‐Vis spectroscopy as well as fast‐atom bombardment and high‐resolution electrospray ionisation mass spectroscopy. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)