Synthesis and properties of a new donor model compound for PSIIShow others and affiliations
2004 (Chinese)In: Gaodeng xuéxiào huàxué xuébào, ISSN 0251-0790, Vol. 25, no 9, p. 1666-1672Article in journal (Refereed) Published
Abstract [zh]
As a model compound for redox components on the donor side of photosystem II (PS II) in green plants, a supramolecular complex 2 was synthesized and characterized. In this complex, two {[(2-hydroxy-3-(morpholin-4-ylmethyl)-5-tert-butyl-benzyl)(pyridyl-2-methyl)amino]methyl} arms are linked to the ortho-positions of a phenol which is expected covalently to be linked to Ru(II) tris-bipyridine through an amide bond. The arms on the substituted-phenol can coordinate two Mn(III) ions. The structure of complex 2 was confirmed by electrospray ionization mass spectrometry (ESI-MS) and 2D-NMR (gCOSY, HSQC and HMBC). Its photochemical and electrochemical properties were studied. The results showed that the MLCT band of the compound was red-shifted compared to that of [Ru(byp)(3)](2+) and the luminescence quantum yield was enhanced. In addition, the oxidation potential of ruthenium was higher than the phenol(+)/phenol and Mn(III, IV)/Mn(III) which was consisted with the electron transfer sequence of the donor side of PS II in nature. All these showed that this compound was a good model to mimic the donor side of PS II.
Place, publisher, year, edition, pages
2004. Vol. 25, no 9, p. 1666-1672
Keywords [zh]
ligand design, phenolate ligand, dinuclear complex, water oxidation, photosystem II, artificial photosynthesis, electron-transfer, photosystem-ii, ditopic ligands, duff reaction, complex, photochemistry, photosynthesis, assemblies, mechanism, tyrosine
Identifiers
URN: urn:nbn:se:kth:diva-23742ISI: 000224014600021OAI: oai:DiVA.org:kth-23742DiVA, id: diva2:342441
Note
QC 20100525
2010-08-102010-08-102022-06-25Bibliographically approved