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One‐Step Synthesis of 4,4′‐Dicyano‐2,2′‐bipyridine and Its Bis(4,4′‐di‐ tert ‐butyl‐2,2′‐bipyridine)ruthenium(II) Complex
Author(s) -
Losse Sebastian,
Görls Helmar,
Groarke Robert,
Vos Johannes G.,
Rau Sven
Publication year - 2008
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200701304
Subject(s) - ruthenium , chemistry , bipyridine , ligand (biochemistry) , 2,2' bipyridine , 4,4' bipyridine , crystal structure , photochemistry , crystallography , molecule , organic chemistry , catalysis , hydrogen bond , biochemistry , receptor
This report describes a new route for the fast, economical and effective one‐step synthesis and facile workup procedure of 4,4′‐dicyano‐2,2′‐bipyridine (dnbpy) and its corresponding ruthenium complexes. The complex [(tbbpy) 2 Ru(dnbpy)](PF 6 ) 2 was prepared for the first time (tbbpy = 4,4′‐di‐ tert ‐butyl‐2,2′‐bipyridine) and the solid‐state molecular structure was investigated with the help of a single‐crystal X‐ray analysis. The influence of the dnbpy ligand on the metal‐to‐ligand charge‐transfer (MLCT) processes of the complex was studied. The compound shows two absorption maxima in the MLCT region of the UV/Vis spectrum at 418 and 510 nm and the emission is 116 nm redshifted in comparison to that of [(tbbpy) 3 Ru](PF 6 ) 2 .(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)