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Synthesis and prope...
Synthesis and properties of a new donor model compound for PSII
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Shi, F. (författare)
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Li, H. Y. (författare)
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Peng, X. J. (författare)
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visa fler...
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Chen, X. Q. (författare)
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Zhang, R. (författare)
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Wang, D. P. (författare)
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Fan, J. L. (författare)
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Sun, Licheng C. (författare)
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visa färre...
- 2004
- 2004
- Kinesiska.
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Ingår i: Gaodeng xuéxiào huàxué xuébào. - 0251-0790. ; 25:9, s. 1666-1672
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- 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.
Nyckelord
- 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
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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