Chemical modification of niobium pentaethoxide with catechol

Kentaro Egawa*, Ken Ichi Minami, Yoshiyuki Sugahara

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


Chemical modification of niobium pentaethoxide (Nb(OCH2CH 3)5; Nb(OEt)5) with catechol (C 6H4OH)2; H2cat) was investigated using infrared spectroscopy, 1H and 13C nuclear magnetic resonance spectroscopy, compositional analysis and mass spectrometry. Niobium pentaethoxide was chemically modified with catechol by the formation of catecholate groups (cat2-) bound to niobium, and a corresponding release of ethanol was observed. The obtained product was [(cat)Nb(OEt) 3]n, which included the dimmer [(cat)Nb(OEt) 3]2.

Original languageEnglish
Pages (from-to)401-404
Number of pages4
JournalKey Engineering Materials
Publication statusPublished - 2003 Jan 1
EventAdvanced Ceramics and Composites - Shanghai, China
Duration: 2002 Nov 192002 Nov 22


  • Catechol
  • Chemical Modification
  • Niobium Pentaethoxide
  • Sol-Gel

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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