Actions for Redox-Active Star Molecules Incorporating the 4-Benzolypyridinium Cation : Implications for the Charge Transfer Efficiency Along Branches versus Across the Perimeter in Dendrimers

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Redox-Active Star Molecules Incorporating the 4-Benzolypyridinium Cation : Implications for the Charge Transfer Efficiency Along Branches versus Across the Perimeter in Dendrimers

Author
Rawashdeh, Abdel Monem M.
Published
[2003].
Physical Description
1 electronic document
Additional Creators
Sotiriou-Leventis, Chariklia, Oh, Woon Su, Yang, Jin-Hua, and Leventis, Nicholas
Online Version

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Summary
We report the redox properties of four star systems incorporating the 4-benzoyl-N-alkylpyridinium cation; the redox potential varies along the branches, but remains constant at fixed radii. Voltammetric analysis (cyclic voltammetry and differential pulse voltammetry) shows that only two of the three redox-active centers in the perimeter are electrochemically accessible during potential sweeps as slow as 20 mV/s and as fast as 10 V/s. On the contrary, both redox centers of a branch are accessible electrochemically within the same time frame. These results are discussed in terms of slow through-space charge transfer and the globular 3-D folding of the molecules.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 20050204021.
Paper 700124.
225th National American Chemical Society Meeting; 23-27 Mar. 2003; New Orleans, LA; United States.
Terms of Use and Reproduction
No Copyright.
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