Punidha, S. ; Ravikanth, M. (2008) Synthesis of covalently linked linear porphyrin triad and tetrad containing different porphyrin sub-units Tetrahedron, 64 (34). pp. 8016-8028. ISSN 0040-4020
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.tet.2008.05.020
Abstract
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.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
Keywords: | Porphyrin Arrays; Functionalized Porphyrins; Weak Interaction; Energy Transfer |
ID Code: | 104574 |
Deposited On: | 01 Dec 2017 10:52 |
Last Modified: | 01 Dec 2017 10:52 |
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