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Journal of Structural Chemistry

, Volume 50, Issue 3, pp 582–584 | Cite as

Crystal structure of calcium cis(N)-bis(iminodiacetato)chromate(III) nonahydrate Ca[Cr(Ida)2]2·9H2O

  • M. Zabel
  • V. I. Pavlovskii
  • A. L. Poznyak
Brief Communications
  • 39 Downloads

Abstract

In the crystals of [Ca(H2O)5][Cr(Ida)2]2·4H2O (triclinic symmetry, a = 10.1056(10) Å, b = 13.0077(11) Å, c = 13.1185(13) Å, α = 70.186(11)°, β = 81.248(11)°, γ = 78.996(11)°, Z = 2, space group P \( \bar 1 \)) cyclic centrosymmetric tetramers are present. In them calcium ions are bonded to oxygen atoms of the carboxyl groups of two octahedral complex cis(N)-[Cr(Ida)2] ions (Ida is the iminodiacetic acid anion). The O atoms of five water molecules complete the Ca atom environment to a distorted pentagonal bipyramid. Isolated [Cr(Ida)2] ions of a similar structure neutralize the positive charge of tetramers.

Keywords

crystal structure bis(iminodiacetato)chromate(III) ion calcium salt 

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Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  1. 1.Institute of Inorganic ChemistryUniversity of RegensburgRegensburgGermany
  2. 2.B. I. Stepanov Institute of PhysicsNational Academy of SciencesMinskBelarus

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