1046471-82-2Relevant academic research and scientific papers
Porphyrin dimers bridged by an electrochemically switchable unit
Mai, Chi-Lun,Huang, Yi-Lin,Lee, Gene-Hsiang,Peng, Shie-Ming,Yeh, Chen-Yu
supporting information; experimental part, p. 5120 - 5124 (2009/05/26)
A simple synthetic approach that allows to incorporate a redox-active bridge into a porphyrin dimers Ni22, Ni23, and Ni 24 was investigated. The oxidation reaction of dimer Ni23 with PbO2 gave porphyrin Ni24. The molecular structures of these porphyrins were confirmed by various spectroscopic methods such as NMR, UV/Vis, IR spectroscopy, and mass spectrometry. The electronic absorptions of porphyrin dimers Ni22 and Ni23 exhibit significant peak-broadening and red shifts, in comparison with those of dimer Ni 24. The redox potentials of the first and second oxidations for Ni22, corresponding to the formation of Ni22+ and Ni222+ species, are separated by 90 mV. This type of porphyrin dimers holds promise to be used in the application of controllable molecular switches.
