Study of a self-assembled porphyrin monomolecular layer obtained by metal complexation

Efficient Charge Injection from the S2 Photoexcited State of Special‐Pair Mimic Porphyrin Assemblies Anchored on a Titanium‐Modified ITO Anode

“…In the C(1s) region, the characteristic peaks attributable to C=C and C À N bonding appeared at 286.0 and 288.5 eV, respectively, in addition to that of the residual carbon at 284.4 eV (Figure 5b). [33] The Zn(2p) peak was not available for the estimation of zinc insertion, because immersion of the ITO electrode in a solution of zinc acetate led to adsorption of excess zinc ions on its surface, judging from the large Zn(2p) peak. [32] The ratio of P(2p) to N(1s) indicates that the SP-mimic dimer was formed by organization/metathesis of ZnA…”

A Self-Assembled Monolayer of an Alkanoic Acid-Derivatized Porphyrin on Gold Surface: A Structural Investigation by Surface Plasmon Resonance, Ultraviolet–Visible, and Infrared Spectroscopies

“…There are two main methods of preparing SAMs of porphyrin with a controlled orientation: (1) chemisorption of alkylthiollinked porphyrins to a metal surface, developed by Zak et al (3) and Hutchison and colleagues (4)(5)(6), and (2) axial ligation of metalloporphyrins to a ligand-modified surface, described for the first time by Li et al (7) and later developed by Offord et al (8) and others (9)(10)(11)(12). The new method to be presented here belongs to the first category, but the synthesis of the film-forming material is much easier than the methods described previously (3)(4)(5)(6).…”

An electrochemical and spectroelectrochemical study of pentacoordinated CoTPP on glassy carbon electrode

“…Changes in the electronic structure of these molecules cause noticeable shifts of absorption bands. Thus changes in the molecule due to the formation of an oxygenated intermediate can be easily followed by UV-visible spectroscopy both in solution and on thin films of porphyrins adsorbed on different substrates [33][34][35][36]. UV-visible reflectance spectroscopy as a function of potential [37] has also been used to follow the formation of this oxygenated intermediate.…”