Crystal structure of 6-hydroxy-2',3',4'-trimethoxyflavone, C18H16O6
نویسندگان
چکیده
منابع مشابه
Crystal structure of tris(2-hydroxy-3,5-dimethylbenzyl)amine.
(H3tdmba, Fig. 1), is a tripodal quadridentate ligand having one tertiary amine-N and three phenolate-O donor atoms. Recently, we have reported the solvent extractive mutual separation of the Group 13 metals (aluminum, gallium and indium) using the above ligand, which showed high extraction selectivity of Ga3+ to Al3+ and In3+.1 It is of interest and significant to study the crystal structure o...
متن کاملCrystal structure of Cs2[Th(NO3)6]
Dicaesium hexa-nitratothorate(IV), Cs2[Th(NO3)6], was synthesized in the form of colourless crystals by reaction of thorium nitrate and caesium nitrate in aqueous solution. The Th atom is located on an inversion centre and is coordinated by six chelating nitrate anions. The resulting ThO12 coordination polyhedron is best described as a slightly distorted icosa-hedron. The Cs atom also has a coo...
متن کاملCrystal structures of 4-methoxy-6-methyl- and 4-hydroxy-6-methyl-2-pyrones.
interesting results because of the regular arrangement of the molecules in the environment.1–3 We previously reported on the photocycloaddition reaction of 4-methoxy-6-methyl-2-pyrone (1a) (Fig. 1) with maleimide (2) in the solid state to give a highly stereoselective [2 + 2] cycloadduct4 owing to the formation of two sets of 1:1 complex crystals between (1a) and (2) (Fig. 1).5 The crystal show...
متن کاملCrystal structure of an antidiabetic agent, (+/-)-5-[4-(6-hydroxy-2,5,7,8-tetramethylchroman-2-ylmethoxy)benzyl]-2,4-dioxothiazollidine, troglitazone dihydrate.
ramethylchroman-2-ylmethoxy)benzyl]-2,4-dioxothiazollidine, troglitazone, is a mixture of two racemic diasteromers, the (±)(2R*,5S*) and (±)-(2R*,5R*) diastereomers. The molecular and crystal structures of both diastereomers have been reported.1,2 Slow crystallization of troglitazone with an aqueous acetone solution gave dihydrated single crystals that were different from the reported diastereo...
متن کاملCrystal structure of 2-hydroxy-N-(2-hydroxyethyl)-N-{2-hydroxy-3-[(E)-N-hydroxyethanimidoyl]-5-methylbenzyl}ethanaminium acetate monohydrate
The structure of the title hydrated mol-ecular salt, C14H23N2O4 (+)·C2H3O2 (-)·H2O, was determined as part of a wider study on the use of the mol-ecule as a polydentate ligand in the synthesis of Mn(III) clusters with magnetic properties. The cation features intra-molecular O-H⋯N and N-H⋯O hydrogen-bond inter-actions. The crystal structure features a range of inter-molecular hydrogen-bonding in...
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ژورنال
عنوان ژورنال: Zeitschrift für Kristallographie - New Crystal Structures
سال: 1999
ISSN: 2197-4578,1433-7266
DOI: 10.1515/ncrs-1999-0433