The ROY family's growing palette: Insights into recent compound additions and color range expansion - a short review

Nogueira B. A., Fausto R.

JOURNAL OF MOLECULAR STRUCTURE, vol.1318, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Review
  • Volume: 1318
  • Publication Date: 2024
  • Doi Number: 10.1016/j.molstruc.2024.139220
  • Journal Name: JOURNAL OF MOLECULAR STRUCTURE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, Chimica, Compendex, INSPEC
  • Istanbul Kültür University Affiliated: No

Abstract

The ROY (systematic name: 5-methyl-2-[(2-nitrophenyl)amino]-3-thiophene-carbonitrile) molecule family stands as the most renowned group of color polymorphic organic compounds. This article offers a concise overview of the main structural characteristics of the 13 known polymorphs of ROY, systematizing their diverse colors in a context where recent data (2022-2024) obtained for novel members of the family are also taken into account, in particular information extracted from our own studies on AcROY, ROY-ol and ROY-CAM. The new findings have extended the spectrum of ROY-based polymorphs' colors to include burgundy and, notably, green tones.