Facile synthesis and platinum complexes of 4',5,5''-trisubstituted-2,2':6',2''-terpyridines

• Published in: Dalton transactions : an international journal of inorganic chemistry Vol. 40; no. 29; pp. 7534 - 7540
• Main Authors: Huo, Jianqiang, Arulsamy, Navamoney, Hoberg, John O
• Format: Journal Article
• Language: English
• Published: England 01.01.2011
• Subjects: Catalysis; Crystal structure; Crystallography, X-Ray; Diffraction; Ligands; Models, Molecular; Organoplatinum Compounds - chemical synthesis; Organoplatinum Compounds - chemistry; Pyridines - chemical synthesis; Pyridines - chemistry; Silver; Spectroscopy; Strategy; Synthesis; X-rays
• ISSN: 1477-9226; 1477-9234
• DOI: 10.1039/c1dt10465a

The synthesis of trisubstituted 4',5,5'' terpyridines is described. The strategy begins with synthesis of 2-acetyl-5-bromopyridine (3) from 2,5-dibromopyridine, substitution of the bromine in 3 using a variety of metal-catalyzed reactions and then formation of the terpyridine using the Krohnke reaction. The complexes have been prepared by reaction of [Pt(PhCN)(2)Cl(2)] with the appropriate silver salt followed by addition of the terpyridyl ligand. The crystal structure of two complexes have been determined via X-ray diffraction and the MLCT (metal-to-ligand charge-transfer) emissions determined by UV/Vis spectroscopy.