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Modulating Electron Transfer in a Simple Bichromophoric System Employing Axial-Ligation as an Organising Precept |
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| Authors: | Kenneth P. Ghiggino James A. Hutchison Steven J. Langford Marcia A.-P. Lee Philip R. Lowenstern Trevor Yann |
| Affiliation: | 1. School of Chemistry, University of Melbourne, Victoria, 3010, Australia 2. School of Chemistry and Centre for Green Chemistry, Monash University, Clayton, Victoria, 3800, Australia |
| Abstract: | A naphthalene diimide acceptor 1 bearing a pyridine group linked directly (a series) or through a —CH2CH2— spacer (b series) coordinated axially to a metallotetraarylporphyrin (MP) undergoes fast photoinduced electron transfer (in the case of MP = Zn(II)TTP) while the kinetically more stable ruthenium complexes (MP = Ru(CO)TPP) have been used to illustrate the correlation between the distance of probe protons from the porphyrin plane and the change in chemical shift (Δδ) upon coordination. Changes in the emission spectra at 650 nm (λ ex= 400 nm) upon the addition of Zn(II) ions and/or 1b to TTPH2 can be interpreted in a truth table to illustrate a NAND gate. |
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