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A New Perspective On Vanadyl Tartrate Dimers. Part Ii. Structure And Spectroscopic Properties Of Calcium Vanadyl Tartrate Tetrahydrate

  • Javier Garcia-Jaca
  • , Teofilo Rojo*
  • , Jose L. Pizarro
  • , Aintzane Goñi
  • , Maria I. Arriortua
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The calcium vanadyl tartrate complex [Ca(VO)(d,/-C4H2O6)(H2O)4] has been synthesized and characterized by spectroscopic methods. Its crystal structure was solved by X-ray methods. The compound is monoclinic, space group P21/c, with a = 8.0282(5), b= 17.1568(8), c= 7.6113(3) A, β= 94.269(4)° and Z = 4. The structure consists of centrosymmetric vanadyl tartrate dimers, [(VO)(d,/-C4H2O6)]24-, and calcium cations placed between them. As a result, dimers form chains in the [101] direction. Neighbouring chains are linked by the coordination of the calcium ion to the oxygen atom of a vanadyl group of a different chain, thus forming a two-dimensional structure. Different layers are linked by hydrogen bonds. Spectroscopic studies show the existence of intra-dimeric interactions between vanadium atoms.

Original languageEnglish
Pages (from-to)327-336
Number of pages10
JournalJournal of Coordination Chemistry
Volume30
Issue number3-4
DOIs
Publication statusPublished - 1 Dec 1993
Externally publishedYes

Keywords

  • calcium
  • crystal structure
  • EPR
  • tartrate
  • Vanadyl

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