Amavadin is a vanadium-containing anion found in three species of poisonous Amanita mushrooms: A. muscaria, A. regalis, and A. velatipes. Amavadin was first isolated and identified in 1972 by Kneifel and Bayer. This anion, which appears as a blue solution, is an eight-coordinate vanadium complex. A Ca2+ cation is often used to crystallize amavadin to obtain a good quality X-ray diffraction. Oxidized amavadin can be isolated as its PPh4+ salt. The oxidized form contains vanadium(V), which can be used to obtain an NMR spectrum.
{{Chembox | verifiedrevid = 413963787 | ImageFile = Amavadin.svg | ImageSize = 200px | ImageFile1 = Amavadin-from-xtal-1999-3D-balls.png | ImageName1 = Ball-and-stick model of the amavadin dianion | IUPACName = bis[N-[(1S)-1-(carboxy-κO)ethyl]-N-(hydroxy-κO)-L-alaninato(2-)-.κN,κO]-vanadium | OtherNames = |Section1= |Section2={{Chembox Properties | Formula = [V{NO[CH(CH3)CO2]2}2]2− | MolarMass = 398.94 g/mol | Appearance = Light blue in solution | Density = | MeltingPt = | BoilingPt = | Solubility = }} |Section3= }}
Amavadin is a vanadium-containing anion found in three species of poisonous Amanita mushrooms: A. muscaria, A. regalis, and A. velatipes. Amavadin was first isolated and identified in 1972 by Kneifel and Bayer. This anion, which appears as a blue solution, is an eight-coordinate vanadium complex. A Ca2+ cation is often used to crystallize amavadin to obtain a good quality X-ray diffraction. Oxidized amavadin can be isolated as its PPh4+ salt. The oxidized form contains vanadium(V), which can be used to obtain an NMR spectrum.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).