Syntheses of two vanadium oxide-fluoride materials that differ in phase matchability

Martin D. Donakowski, Romain Gautier, Hongcheng Lu, T. Thao Tran, Jacqueline R. Cantwell, P. Shiv Halasyamani, Kenneth R. Poeppelmeier*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


The syntheses of two noncentrosymmetric (NCS) vanadium oxide-fluoride compounds that originate from the same synthetic reagent concentrations are presented. Hydrothermal and low-temperature syntheses allow the isolation of metastable products that may form new phases (or decompose) upon heating and allow creation of chemically similar but structurally different materials. NCS materials synthesis has been a long-standing goal in inorganic chemistry: in this article, we compare two chemically similar NCS inorganic materials, NaVOF4(H2O) (I) and NaVO2-xF2+x (II; x = 1/3). These materials originate from the same, identical reagent mixtures but are synthesized at different temperatures: 100 °C and 150°C, respectively. Compound I crystallizes in Pna21: a = 9.9595(4) Å, b = 9.4423(3) Å, and c = 4.8186(2) Å. Compound II crystallizes in P21: a = 6.3742(3) Å, b = 3.5963(2) Å, c = 14.3641(7) Å, and β = 110.787(3)°. Both materials display second-harmonic-generation activity; however, compound I is type 1 non-phase-matchable, whereas compound II is type 1 phase-matchable.

Original languageEnglish (US)
Pages (from-to)765-772
Number of pages8
JournalInorganic chemistry
Issue number3
StatePublished - Feb 2 2015

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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