chlorophyll-a has been researched along with imidazole* in 3 studies
3 other study(ies) available for chlorophyll-a and imidazole
| Article | Year |
|---|---|
Evaluation of the impact of different alkyl length and type of substituent in imidazolium ionic liquids on cucumber germination, growth and oxidative stress.
In this work, the effect on cucumber growth of seven different imidazolium-based ionic liquids, namely 1-(2-oxybutyl)-3-methylimidazolium chloride, [C Topics: Chlorophyll; Cucumis sativus; Germination; Imidazoles; Ionic Liquids; Oxidative Stress; Seedlings | 2018 |
Effects of various copper forms on the freshwater alga, Scenedesmus quadricauda (Turp.) BREB. strain Greifswald 15.
Topics: Cell Growth Processes; Chlorophyll; Copper; Cyanates; Imidazoles; Ligands; Scenedesmus; Water Pollutants, Chemical | 2005 |
Synthetic analogues of the histidine-chlorophyll complex: a NMR study to mimic structural features of the photosynthetic reaction center and the light-harvesting complex.
Mg(II)-porphyrin-ligand and (bacterio)chlorophyl-ligand coordination interactions have been studied by solution and solid-state MAS NMR spectroscopy. (1)H, (13)C and (15)N coordination shifts due to ring currents, electronic perturbations and structural effects are resolved for imidazole (Im) and 1-methylimidazole (1-MeIm) coordinated axially to Mg(II)-OEP and (B)Chl a. As a consequence of a single axial coordination of Im or 1-MeIm to the Mg(II) ion, 0.9-5.2 ppm (1)H, 0.2-5.5 ppm (13)C and 2.1-27.2 ppm (15)N coordination shifts were measured for selectively labeled [1,3-(15)N]-Im, [1,3-(15)N,2-(13)C]-Im and [1,3-(15)N,1,2-(13)C]-1-MeIm. The coordination shifts depend on the distance of the nuclei to the porphyrin plane and the perturbation of the electronic structure. The signal intensities in the (1)H NMR spectrum reveal a five-coordinated complex, and the isotropic chemical shift analysis shows a close analogy with the electronic structure of the BChl a-histidine in natural light harvesting 2 complexes. The line broadening of the ligand responses support the complementary IR data and provide evidence for a dynamic coordination bond in the complex. Topics: Bacteriochlorophyll A; Bacteriochlorophylls; Carbon Isotopes; Chlorophyll; Chlorophyll A; Histidine; Imidazoles; Isotope Labeling; Light-Harvesting Protein Complexes; Magnesium; Magnetic Resonance Spectroscopy; Molecular Structure; Nitrogen Isotopes; Photosynthesis; Rhodobacter sphaeroides; Spectrophotometry, Infrared; Spinacia oleracea | 2004 |