The crystal and molecular structure of C.I. Pigment Yellow 83, a superior performance Diarylide Yellow pigment

Michael J. Barrow, Robert M. Christie, Tracey D. Badcock

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The pigment (Y83) crystallises in the monoclinic system, space group P21/c, with two molecules in the unit cell. The molecules exist in the bisketohydrazone tautomeric form and have crystallographic Ci symmetry. The intra molecular hydrogen bonding normally associated with this structural arrangement is observed, but there is no inter molecular hydrogen bonding. The crystal structure differs from those of previously reported Diarylide Yellow pigments (Y12, Y13, Y14 and Y63) in that the molecules are more nearly planar and the packing arrangement involves simple inclined stacks. The difference in crystal packing for Y83 is consistent with its inability to form solid solutions with the other pigments. The colour properties and technical performance of the pigment are discussed in relation to its crystal structure. © 2003 Elsevier Science Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)99-106
Number of pages8
JournalDyes and Pigments
Volume57
Issue number2
DOIs
Publication statusPublished - May 2003

Keywords

  • C.I. Pigment Yellow 83
  • Diarylide Yellow
  • Disazo pigment
  • Disazoacetoacetanilide
  • Ketohydrazone
  • Solid solution
  • X-ray crystallography

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