Accession Number : ADA290627

Title :   17 O NMR of the Structural Evolution of V 2O5 Gels.

Descriptive Note : Technical rept.,

Corporate Author : MINNESOTA UNIV MINNEAPOLIS DEPT OF CHEMICAL ENGINEERING AND MATERIALS SCIENCE

Personal Author(s) : Pozarnsky, G. A. ; McCormick, A. V.

PDF Url : ADA290627

Report Date : JUL 1994

Pagination or Media Count : 23

Abstract : Recent studies of the synthesis of V2O5 gels by acidifying metavanadate salt solutions suggest that dioxovanadium cations polymerize into chains of vanadate octahedra. In this study we characterize the growth of vanadate polymers by both solution and MAS 17O NMR. The spectra are consistent with the formation of a chain polymer with a repeat unit of V sub OHO2(OH)(OH2)2. The 17O NMR spectra also suggest that the chains might connect to each other through the hydrogen bonding. (jg)

Descriptors :   *NUCLEAR MAGNETIC RESONANCE, *POLYMERS, *MOLECULAR STRUCTURE, *GELS, *VANADATES, CATIONS, HYDROGEN BONDS, SYNTHESIS, STRUCTURAL PROPERTIES, TWO DIMENSIONAL, GROWTH(GENERAL), OXYGEN, CHAINS, EVOLUTION(GENERAL), MOLECULAR PROPERTIES, SALINE SOLUTION.

Subject Categories : Inorganic Chemistry
      Physical Chemistry
      Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE