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BY-NC-ND 3.0 license Open Access Published by De Gruyter June 2, 2014

Synthese und Kristallstruktur von manganhaltigen Pyroboraten: MnCo(B2O5) und MnMg(B2O5) / Synthesis and Crystal Structure of Manganese Containing Pyroborates: MnCo(B2O5) and MnMg(B2O5)

  • Anne Utzolino and Karsten Bluhm

The compounds MnCo(B2O5) (I) and MnMg(B2O5) (II) were prepared by using B2O3 flux techniques in an argon atmosphere. X-ray investigations on single crystals showed triclinic symmetry, space group Ci1 - P1̄, I: a = 320.94(10), b = 619.20(11), c = 939.0(2) pm, a = 104.38(2)°, β = 90.76(2)°, γ = 92.046(14)° and II: a = 318.97(7), b = 619.8(2), c = 936.7(2) pm, α = 104.47(2)°, β = 90.60(2)°, γ = 91.98(2)° Z = 2. Their structures are isotypic with Co2(B2O5). All metal ions are octahedrally coordinated by six oxygen atoms. The structures contain diborate anions B2O54-. Each boron atom is threefold coordinated by oxygen.

Received: 1996-1-25
Published Online: 2014-6-2
Published in Print: 1996-7-1

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