One- and two-photon excitation of β-carbolines in aqueous solution: ph-dependent spectroscopy, photochemistry, and photophysics
β-Carboline (βC) alkaloids are present in a wide range of biological systems and play a variety of significant photodependent roles. In this work, a study of the aqueous solution-phase photochemistry, photophysics, and spectroscopy of three important βCs [norharmane (nHo), harmane (Ho), and harmine...
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2009
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10895639_v113_n24_p6648_MicaelaGonzalez http://hdl.handle.net/20.500.12110/paper_10895639_v113_n24_p6648_MicaelaGonzalez |
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paper:paper_10895639_v113_n24_p6648_MicaelaGonzalez2023-06-08T16:06:25Z One- and two-photon excitation of β-carbolines in aqueous solution: ph-dependent spectroscopy, photochemistry, and photophysics Ambient oxygen concentrations Aqueous solutions Carbolines Harmane PH-dependent Photo-induced Photophysical phenomena Photophysics Two-photon excitations Cesium Holmium Oxygen Photons Biological systems carboline derivative hydrogen peroxide water article chemical structure chemistry fluorescence high performance liquid chromatography methodology pH photochemistry photon quantum theory solution and solubility time ultraviolet spectrophotometry Carbolines Chromatography, High Pressure Liquid Fluorescence Hydrogen Peroxide Hydrogen-Ion Concentration Molecular Structure Photochemistry Photons Quantum Theory Solutions Spectrophotometry, Ultraviolet Time Factors Water β-Carboline (βC) alkaloids are present in a wide range of biological systems and play a variety of significant photodependent roles. In this work, a study of the aqueous solution-phase photochemistry, photophysics, and spectroscopy of three important βCs [norharmane (nHo), harmane (Ho), and harmine (Ha)] and two βC derivatives [N-methylnorharmane (N-Me-nHo) and N-methylharmane (N-Me-Ho)] upon one- and two-photon excitation is presented. The results obtained depend significantly on pH, the ambient oxygen concentration, and the βC substituent and provide unique insight into a variety of fundamental photophysical phenomena. The data reported herein should not only help to understand the roles played by βC alkaloids in biological systems but should also help in the development of methods by which the photoinduced behavior of these important compounds can be controlled. © 2009 American Chemical Society. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10895639_v113_n24_p6648_MicaelaGonzalez http://hdl.handle.net/20.500.12110/paper_10895639_v113_n24_p6648_MicaelaGonzalez |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Ambient oxygen concentrations Aqueous solutions Carbolines Harmane PH-dependent Photo-induced Photophysical phenomena Photophysics Two-photon excitations Cesium Holmium Oxygen Photons Biological systems carboline derivative hydrogen peroxide water article chemical structure chemistry fluorescence high performance liquid chromatography methodology pH photochemistry photon quantum theory solution and solubility time ultraviolet spectrophotometry Carbolines Chromatography, High Pressure Liquid Fluorescence Hydrogen Peroxide Hydrogen-Ion Concentration Molecular Structure Photochemistry Photons Quantum Theory Solutions Spectrophotometry, Ultraviolet Time Factors Water |
| spellingShingle |
Ambient oxygen concentrations Aqueous solutions Carbolines Harmane PH-dependent Photo-induced Photophysical phenomena Photophysics Two-photon excitations Cesium Holmium Oxygen Photons Biological systems carboline derivative hydrogen peroxide water article chemical structure chemistry fluorescence high performance liquid chromatography methodology pH photochemistry photon quantum theory solution and solubility time ultraviolet spectrophotometry Carbolines Chromatography, High Pressure Liquid Fluorescence Hydrogen Peroxide Hydrogen-Ion Concentration Molecular Structure Photochemistry Photons Quantum Theory Solutions Spectrophotometry, Ultraviolet Time Factors Water One- and two-photon excitation of β-carbolines in aqueous solution: ph-dependent spectroscopy, photochemistry, and photophysics |
| topic_facet |
Ambient oxygen concentrations Aqueous solutions Carbolines Harmane PH-dependent Photo-induced Photophysical phenomena Photophysics Two-photon excitations Cesium Holmium Oxygen Photons Biological systems carboline derivative hydrogen peroxide water article chemical structure chemistry fluorescence high performance liquid chromatography methodology pH photochemistry photon quantum theory solution and solubility time ultraviolet spectrophotometry Carbolines Chromatography, High Pressure Liquid Fluorescence Hydrogen Peroxide Hydrogen-Ion Concentration Molecular Structure Photochemistry Photons Quantum Theory Solutions Spectrophotometry, Ultraviolet Time Factors Water |
| description |
β-Carboline (βC) alkaloids are present in a wide range of biological systems and play a variety of significant photodependent roles. In this work, a study of the aqueous solution-phase photochemistry, photophysics, and spectroscopy of three important βCs [norharmane (nHo), harmane (Ho), and harmine (Ha)] and two βC derivatives [N-methylnorharmane (N-Me-nHo) and N-methylharmane (N-Me-Ho)] upon one- and two-photon excitation is presented. The results obtained depend significantly on pH, the ambient oxygen concentration, and the βC substituent and provide unique insight into a variety of fundamental photophysical phenomena. The data reported herein should not only help to understand the roles played by βC alkaloids in biological systems but should also help in the development of methods by which the photoinduced behavior of these important compounds can be controlled. © 2009 American Chemical Society. |
| title |
One- and two-photon excitation of β-carbolines in aqueous solution: ph-dependent spectroscopy, photochemistry, and photophysics |
| title_short |
One- and two-photon excitation of β-carbolines in aqueous solution: ph-dependent spectroscopy, photochemistry, and photophysics |
| title_full |
One- and two-photon excitation of β-carbolines in aqueous solution: ph-dependent spectroscopy, photochemistry, and photophysics |
| title_fullStr |
One- and two-photon excitation of β-carbolines in aqueous solution: ph-dependent spectroscopy, photochemistry, and photophysics |
| title_full_unstemmed |
One- and two-photon excitation of β-carbolines in aqueous solution: ph-dependent spectroscopy, photochemistry, and photophysics |
| title_sort |
one- and two-photon excitation of β-carbolines in aqueous solution: ph-dependent spectroscopy, photochemistry, and photophysics |
| publishDate |
2009 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10895639_v113_n24_p6648_MicaelaGonzalez http://hdl.handle.net/20.500.12110/paper_10895639_v113_n24_p6648_MicaelaGonzalez |
| _version_ |
1768545661111762944 |