Silicophosphate/silicophosphite hybrid materials prepared by solventless ethanol condensation

Yomei Tokuda, Yusuke Tanaka, Masahide Takahashi, Rie Ihara, Toshinobu Yoko

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


We have developed organic-inorganic silicophosphate and silicophenylphosphite hybrid materials by means of alcohol condensation between organically modified alkoxysilane and anhydrous phosphoric or phosphonic acid under a solventless, catalyst-free, low-temperature, one-pot condition. The hybrid exhibits a low-melting property and is chemically more durable than that prepared by using a nonaqueous acid-base reaction between anhydrous phosphoric acid and organically modified chlorosilane. 29Si and 31P NMR analyses have shown that the alcohol condensation yield was around 80%. Quantum chemical calculations have also performed in order to clarify the chemical durability improvement of the hybrids.

Original languageEnglish
Pages (from-to)842-846
Number of pages5
JournalJournal of the Ceramic Society of Japan
Issue number1367
Publication statusPublished - 2009 Jul
Externally publishedYes


  • Low-melting
  • NMR
  • Organic-inorganic hybrid
  • Quantum chemical calculation
  • Silicophosphate

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry


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