6533b839fe1ef96bd12a6793
RESEARCH PRODUCT
Electron diffraction, X-ray powder diffraction and pair-distribution-function analyses to determine the crystal structures of Pigment Yellow 213, C23H21N5O9.
Frank StowasserAnette RechTatiana GorelikChristian BuchsbaumMichela BrunelliJacco Van De StreekLothar FinkUte KolbFabia GozzoEdith AligEnrico MugnaioliAlexandra K. WolfMartin U. SchmidtJürgen GlinnemannStefan BrühneJürgen Brüningsubject
DiffractionModels MolecularAza CompoundsReflection high-energy electron diffractionChemistryMolecular ConformationGeneral MedicineCrystal structurePair-distribution functionHeterocyclic Compounds 4 or More RingsGeneral Biochemistry Genetics and Molecular BiologyPigment Yellow 213CrystalCrystallinityCrystallographyElectron diffractionElectron diffractionMicroscopy Electron TransmissionX-ray powder diffractionElectron diffraction; Pair-distribution function; Pigment Yellow 213; X-ray powder diffractionParticle SizeColoring AgentsPowder diffractionPowder DiffractionElectron backscatter diffractiondescription
The crystal structure of the nanocrystalline alpha phase of Pigment Yellow 213 (P.Y. 213) was solved by a combination of single-crystal electron diffraction and X-ray powder diffraction, despite the poor crystallinity of the material. The molecules form an efficient dense packing, which explains the observed insolubility and weather fastness of the pigment. The pair-distribution function (PDF) of the alpha phase is consistent with the determined crystal structure. The beta phase of P.Y. 213 shows even lower crystal quality, so extracting any structural information directly from the diffraction data is not possible. PDF analysis indicates the beta phase to have a columnar structure with a similar local structure as the alpha phase and a domain size in column direction of approximately 4 nm.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-01-01 | Acta crystallographica. Section B, Structural science |