Investigation of free base, Mg, Sn, and Zn substituted porphyrin LB films as gas sensors for organic analytes

Article Abstract:

The visible absorption spectra of different substituted porphyrin compounds both in chloroform solution and as Langmuir-Blodgett (LB) solid-state films are investigated. The changes in the absorption spectra of Zn, Sn and Mg induced by their exposure to various organic compounds are described to find out if this method is useful for optical gas sensor.

United Kingdom, Observations, Thin films, Multilayered, Multilayered thin films, Absorption spectra

---

Tuning J-aggregates of tetra(p-hydroxyphenyl)porphyrin by the headgroups of ionic surfactants in acidic nonionic micellar solution

Article Abstract:

Appropriate pH, nonionic micelles and trace levels of ionic surfactant with an oxyacid headgroup are required for the formation of the J-aggregates of the diacid form of tetra(p-hydroxyphenyl)porphyrin (THPP). The overall resonance Raman intensities are found to be stronger in the J-aggregates than in the monomers.

Analysis, Raman spectroscopy, Structure, Hydrophobic effect

---

Similar abstracts:

• Abstracts: Investigations of the electric field in TiO2/FTO junctions used in dye-senitized solar cells by photocurrent transients
• Abstracts: Investigations of the electric field in TiO2/FTO junctions used in dye-senitized solar cells by photocurrent transients. part 2
• Abstracts: Versatile fabrication of distorted cubic mesoporous silica film using CTAB together with a hydrophobic organic additive
• Abstracts: Determination of pore sizes and volumes of porous materials by (sup 129)Xe NMR of xenon gas dissolved in a medium
• Abstracts: Key industry ratios and statistics. Industry profile - chemicals, a basic industry

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.