One-dimensional vanadium oxide chains containing covalently bound copper coordination complexes: Hydrothermal synthesis and characterization of Cu(H2N(CH2)2NH2)[V2O 6], Cu(C10H8N2)[V2O6], and Cu(C10H8N2)2[V2O 6]

Jeffrey R.D. DeBord, Yiping Zhang, Robert C. Haushalter, Jon Zubieta, Charles J. O'Connor

Research output: Contribution to journalArticle

101 Scopus citations

Abstract

The hydrothermal reactions of CuCl2 · 2H2O, V2O5, and bidentate amines (2,2′-dipyridyl or ethylenediamine) gave the three new one-dimensional (1-D) vanadium oxide chain compounds, Cu(H2N(CH2)2NH2)[V2O 6], 1, Cu(C10H8N2)[V2O6], 2, and Cu(C10H8N2)2[V2O 6], 3, which contain copper coordination complexes covalently bound to vanadium oxide chains. All were structurally characterized via single-crystal X-ray diffraction. Crystal data are as follows: 1, monoclinic, space group P21/n (No. 14) with a = 5.772(2) Å, b = 8.143(3) Å, c = 17.483(2) A, β = 90.43(2)°, Z = 4, pcalc = 2.599 g/cm3, and R(Rw) = 0.029 (0.028); 2, triclinic, space group P1 (No. 2) with a = 10.114(2) Å, b = 10.839(3) Å, c = 5.810(3) Å, α = 94.75(3)°, β = 101.16(3)°, γ = 89.81(2)°, Z = 2, pcalc = 2.27 g/cm3, and R(RW) = 0.035 (0.044); 3, monoclinic, space group P21/a (No. 14) with a = 10.478(2) Å, b = 13.779(2) Å, c = 14.513(3) Å, β = 100.39(1)°, Z = 4, and pcalc = 1.849 g/cm-3 with R(Rw) = 0.033 (0.034). While compounds 1 and 2 contain almost identical 1-D metal oxide chains composed of corner-sharing VO4 tetrahedra with one oxygen atom from each tetrahedron bound to the copper complex, complex 3 consists of 1-D chains with a Cu(C10H8N2)2 fragment bonded to every other VO4. Temperature-dependent magnetic measurements of 1 exhibit a maximum at 20 K, while 2, which possesses well-separated Cu2+ centers, displays Curie-Weiss behavior from 5 to 300 K.

Original languageEnglish (US)
Pages (from-to)251-258
Number of pages8
JournalJournal of Solid State Chemistry
Volume122
Issue number2
DOIs
StatePublished - Mar 1996

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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