Record link: 
http://hdl.handle.net/20.500.12708/190449
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Title: 
Crystal structure of K₆[Zn(CO₃)₄]
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Citation: 
Eder, F., & Weil, M. (2023). Crystal structure of K₆[Zn(CO₃)₄]. Acta Crystallographica Section E: Crystallographic Communications, 79(8), 718–721. https://doi.org/10.1107/S2056989023006072
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Publisher DOI: 
10.1107/S2056989023006072
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Publication Type: 
Article - Original Research Article
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Language: 
English
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Authors: 
Eder, Felix 
Weil, Matthias 
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Organisational Unit: 
E164-05-1 - Forschungsgruppe Experimentelle Strukturchemie 
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Journal: 
Acta Crystallographica Section E: Crystallographic Communications 
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Date (published): 
1-Jul-2023
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Number of Pages: 
4
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Publisher: 
Wiley ; International Union of Crystallography
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Peer reviewed: 
Yes
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Keywords: 
carbonate; crystal structure; zinc in tetra­hedral coordination
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Abstract: 
The crystal structure of K₆[Zn(CO₃)₄], hexa-potassium tetra-carbonato-zincate(II), comprises four unique potassium cations (two located on a general position, and two on the twofold rotation axis of the space group C2/c) and a [Zn(CO₃)₄]⁶⁻ anion. The ZnII atom of the latter is located on the twofold rotation axis and is surrounded in a slightly distorted tetra-hedral manner by two pairs of monodentately binding carbonate groups, with Zn-O distances of 1.9554 (18) and 1.9839 (18) Å. Both carbonate groups exhibit a slight deviation from planarity, with the C atom being shifted by 0.008 (2) and 0.006 (3) Å, respectively, from the plane of the three O atoms. The coordination numbers of the potassium cations range from 6 to 8, using a threshold of 3.0 Å for K-O bonding inter-actions being significant. In the crystal structure, [KOₓ] polyhedra and [Zn(CO₃)₄]⁶⁻ groups share O atoms to build up the framework structure.
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Research Areas: 
Materials Characterization: 50%
Structure-Property Relationsship: 20%
Non-metallic Materials: 30%
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Science Branch: 
1040 - Chemie: 100%
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