Pyridylporphyrins peripherally coordinated to ruthenium-nitrosyls, including the water-soluble Na4[Zn·4′TPyP{RuCl4(NO)}4]: synthesis and structural characterization?

New Journal of Chemistry Pub Date: 2005-05-13 DOI: 10.1039/B418855A

Abstract

Several new ruthenium-nitrosyl conjugates with meso-4′pyridylporphyrins, namely the two anionic isomers [nBu4N][trans-RuCl4(4′MPyP)(NO)] (1) and [nBu4N][cis-RuCl4(4′MPyP)(NO)] (2), the two neutral isomers [mer,trans-RuCl3(4′MPyP)2(NO)] (3) and [mer,cis-RuCl3(4′MPyP)2(NO)] (4), and the tetraruthenated adduct [nBu4N]4[4′TPyP{RuCl4(NO)}4] (5) were obtained by reaction of [nBu4N][trans-RuCl4(dmso-O)(NO)] with 4′MPyP and 4′TPyP (meso-4′monopyridylporphyrin and meso-4′tetrapyridylporphyrin, respectively). The X-ray structures of 2, 4, and 5 are described. Exchange of nBu4N+ for Na+ eventually led to the water-soluble tetraruthenated porphyrin Na4[Zn·4′TPyP{RuCl4(NO)}4] (6·Zn).

Graphical abstract: Pyridylporphyrins peripherally coordinated to ruthenium-nitrosyls, including the water-soluble Na4[Zn·4′TPyP{RuCl4(NO)}4]: synthesis and structural characterization
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