The investigation of crystal structure, spectroscopic and thermal properties of p-(p-acetylphenylazo)-o-allylphenol and p-(p-bromphenylazo)-o-allylphenol

Odabasoglu M., Turgut G., Karadayi N., Buyukgungor O.

DYES AND PIGMENTS, vol.64, no.3, pp.271-278, 2005 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 64 Issue: 3
  • Publication Date: 2005
  • Doi Number: 10.1016/j.dyepig.2004.06.004
  • Journal Name: DYES AND PIGMENTS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.271-278
  • Keywords: azo dyes, X-ray, UV-VIS, IR, NMR, thermal analysis, CHROMOPHOR GROUP, POLY(ORGANOPHOSPHAZENES), CYCLOTRIPHOSPHAZENES, COMPLEXES, STORAGE
  • Ondokuz Mayıs University Affiliated: No

Abstract

The two new azo dyes p-(p-acetylphenylazo)-o-allylphenol (compound 1) and p-(p-bromphenylazo)-o-allylphenol (compound 11) have been synthesized and studied by FT-IR, UV-VIS, H-1 NMR, C-13 NMR techniques, elemental analysis, X-ray structure analysis and TG, DTG, and DTA analyses. Compound I crystallizes in the monoclinic space group P21/c with a = 19.6130(15) Angstrom, b = 7.3586(6) Angstrom, c = 21.4752(15) Angstrom, alpha = 90.00degrees, beta = 101.413(6)degrees, gamma = 90.00degrees, Z = 8, V = 3038.1(4) Angstrom and the molecules are linked by two intermolecular (OO)-O-... hydrogen bonds. There are two independent molecules in the asymmetric unit of compound I. Compound II crystallizes in the nionoclinic space group Cc with a = 4.7194(7) Angstrom, b = 24.597(2) Angstrom, c = 12.2241(16) Angstrom, alpha = 90.00degrees, beta = 96.509(11)degrees, gamma = 90.00degrees, Z = 4, V = 1409.9(3) Angstrom(3) and the molecules are linked by (ON)-N-... and C-(HO)-O-... intermolecular hydrogen bonds. They are characterized by UV-VIS, FT-IR, H-1 NMR, C-13 NMR techniques, elemental analysis, TG, DTG, and DTA analyses. (C) 2004 Elsevier Ltd. All rights reserved.