THE PHENYLHYDRAZONE FORM OF 2-PHENYLAZO-1,3-INDANDIONE


IDE S., KENDI E., OZBEY S., ERTAN N.

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, vol.50, pp.1505-1507, 1994 (Peer-Reviewed Journal) identifier

  • Publication Type: Article / Article
  • Volume: 50
  • Publication Date: 1994
  • Doi Number: 10.1107/s0108270193014490
  • Journal Name: ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS
  • Journal Indexes: Science Citation Index Expanded, Academic Search Premier, Aerospace Database, Communication Abstracts, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.1505-1507

Abstract

In the solid state, 2-phenylazo-1,3-indandione, C1.5H10N2O2, exists as a keto-hydrazone tautomer 2-phenylhydrazono-1,3-indandione. The bond distance of one of the keto groups, is slightly elongated [1.230 (3) cf. 1.217 (2) angstrom] as a result of resonance. This resonance is also indicated by an averaging of the single and double bonds in the crystal structure. A strong intramolecular hydrogen bond is found between the elongated oxo group and the amine H atom.