Complexation of porphyrin with a pyridine moiety in self-assembled monolayers on metal surfaces

Article Abstract:

Issues concerning the use of noncovalent bonding to prepare ordered porphyrin monolayers on the surface of silver colloids are presented.

Surface chemistry

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Photoinduced electron transfer in porphyrin-oligothiophene-fullerene linked triads by excitation of a porphyrin moiety

Article Abstract:

Time-resolved fluorescence and absorption spectroscopic methods are used to investigate photoinduced charge-separation (CS) and recombination (CR) processes of porphyrin (H2P)-oligothiophene (nT)-fullerene (C60) linked triads (H2P-nT-C60, n=4, 8, and 12). Multifunctional roles of the nT's in the photoinduced processes of H2P-nT-C60 are disclosed.

Science & research, Industrial Organic Chemicals, Cyclic Crude and Intermediate Manufacturing, Porphyrins, Usage, Optical properties, Fluorescence spectroscopy

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Enhancement of the second harmonic response by adsorbates on gold colloids: the effect of aggregation

Article Abstract:

The measurements of the extinction profiles and hyper Rayleigh scattering (HRS) signal of gold colloidal sol in the presence of pyridine are presented. Results demonstrate the effect of pyridine on the enhancement of the HRS signal.

France, Switzerland, Rayleigh scattering

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