Axial ligand exchange reaction on ruthenium phthalocyanines

Yang, X. C. (author)

Kritikos, M. (author)

Akermark, B. (author)

2005
2005
English.
In: Journal of Porphyrins and Phthalocyanines. - 1088-4246 .- 1099-1409. ; 9:4, s. 248-255

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Abstract Subject headings

Bis(4-methylpyridine)phthalocyaninato ruthenium(II) has been synthesized. It was proved by single-crystal X-ray diffraction that the central Ru(II) atom is bonded to six N atoms in an elongated octahedral configuration, and the axial ligands have a significantly longer Ru-N bond distance, 2.101(4) angstrom, than the independent pyrrol Ru-N bond, 1.99 angstrom. Therefore, the axial ligands can be exchanged by other ligands. The ligand exchange reactions with diethyl pyridyl-4-phosphonate and diethyl pyridylmethyl-4-phosphonate were studied in high boiling-point solvents at elevated temperatures, ca 160 degrees C. Mono-ligand as well as double-ligand replaced complexes were obtained. The complexes have been isolated by column chromatography. These complexes have potential applications, such as in dye sensitized solar cells.

By the author/editor: Yang, X. C.; Kritikos, M.; Akermark, B.; Sun, Licheng C.

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