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Synthesis and spectral properties of a new ruthenium(II) tris-bipyridine with four ester groups and substituted phenol
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2004 (Chinese)In: Huaxue xuebao, ISSN 0567-7351, Vol. 62, no 7, 713-719 p.Article in journal (Refereed) Published
Abstract [zh]

A new ruthenium(II) complex (1) with four ester groups have been designed and synthesized, in which a phenol substituted by {[(2-hydroxy-3-(morpholin-4-ylmethyl)-5-tent-butylbenzyl) (pyridyl-2-methyl) amino]methyl} groups was covalently linked to ruthenium (II) tris-bipyridine. The structure of complex 1 was characterized by electrospray ionization mass spectrometer (ESI-MS) and 1D-NMR, 2D-NMR (gCOSY, HSQC and HMBC) spectra. The electrochemical and spectral properties were also studied. Introduction of the four carboxyl acid groups and the donor ligand tuned the spectra and the redox properties of compound 1. The MLCT transition was turned from 451 to 474 nm and the complex had long lifetime of the (MLCT)-M-3 state emission. Moreover, the oxidation potential of Ru3+/Ru2 + of compound 1 was similar to 360 mV higher than that of [Ru(bpy)(3)](2+) which would enhance the driving-force of electron transfer. These results showed that the compound 1 had proper redox potentials and was suitable for being used as photosensitizer of solar cell.

Place, publisher, year, edition, pages
2004. Vol. 62, no 7, 713-719 p.
Keyword [zh]
photosensitizer, solar cell, phenolate ligand, fluorescent spectra, flash photolysis, redox potential, nanocrystalline tio2 interfaces, photoinduced charge separation, electron-transfer, polypyridyl complexes, duff reaction, light, photochemistry, phenothiazine, derivatives, assemblies
URN: urn:nbn:se:kth:diva-23308ISI: 000220682300012OAI: diva2:342006
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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