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|a (NLM)19461846
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|a eng
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1 |
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|a Panina, N
|e verfasserin
|4 aut
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|a Crystal structure prediction of organic pigments
|b quinacridone as an example
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|c 2007
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Revised 14.03.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The structures of the alpha, beta and gamma polymorphs of quinacridone (Pigment Violet 19) were predicted using Polymorph Predictor software in combination with X-ray powder diffraction patterns of limited quality. After generation and energy minimization of the possible structures, their powder patterns were compared with the experimental ones. On this basis, candidate structures for the polymorphs were chosen from the list of all structures. Rietveld refinement was used to validate the choice of structures. The predicted structure of the gamma polymorph is in accordance with the experimental structure published previously. Three possible structures for the beta polymorph are proposed on the basis of X-ray powder patterns comparison. It is shown that the alpha structure in the Cambridge Structural Database is likely to be in error, and a new alpha structure is proposed. The present work demonstrates a method to obtain crystal structures of industrially important pigments when only a low-quality X-ray powder diffraction pattern is available
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|a Journal Article
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|a Leusen, F J J
|e verfasserin
|4 aut
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|a Janssen, F F B J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Verwer, P
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Meekes, H
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Vlieg, E
|e verfasserin
|4 aut
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| 700 |
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|a Deroover, G
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of applied crystallography
|d 1998
|g 40(2007), Pt 01 vom: 01. Feb., Seite 105-114
|w (DE-627)NLM098121561
|x 0021-8898
|7 nnns
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| 773 |
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|g volume:40
|g year:2007
|g number:Pt 01
|g day:01
|g month:02
|g pages:105-114
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|a AR
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|d 40
|j 2007
|e Pt 01
|b 01
|c 02
|h 105-114
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