Synthesis of covalently linked linear porphyrin triad and tetrad containing different porphyrin sub-units
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Title |
Synthesis of covalently linked linear porphyrin triad and tetrad containing different porphyrin sub-units
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Creator |
PUNIDHA, S
RAVIKANTH, M |
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Subject |
porphyrin arrays
functionalized porphyrins weak interactions energy transfer |
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Description |
Covalently linked diarylethyne bridged unsymmetrical porphyrin triad containing ZnN4, N4, and N2S2 porphyrin sub-units and porphyrin tetrad containing ZnN4, N4, N3S, and N2S2 porphyrin sub-units were synthesized over sequence of Pd(0) mediated coupling reactions. The triad and tetrad are freely soluble in all common organic solvents and characterized by ES-MS, NMR, absorption, fluorescence, and electrochemical techniques. The 1H NMR, absorption, and electrochemical studies indicated a weak interaction between the porphyrin sub-units of porphyrin triad and porphyrin tetrad. The steady state and time-resolved fluorescence studies supported an energy transfer from one end of porphyrin array to the other end. This kind of porphyrin arrays containing different porphyrin sub-units will be useful for molecular electronics applications.
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Publisher |
Elsevier
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Date |
2009-03-23T05:13:47Z
2011-11-25T20:12:27Z 2011-12-26T13:08:11Z 2011-12-27T05:56:11Z 2009-03-23T05:13:47Z 2011-11-25T20:12:27Z 2011-12-26T13:08:11Z 2011-12-27T05:56:11Z 2008 |
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Type |
Article
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Identifier |
Tetrahedron 64(34), 8016-8028
0040-4020 http://dx.doi.org/10.1016/j.tet.2008.05.020 http://hdl.handle.net/10054/1072 http://dspace.library.iitb.ac.in/xmlui/handle/10054/1072 |
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Language |
en
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