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Dipotassium tetrachromate(VI), K2Cr4O13

Barbara M. Casari ; Vratislav Langer (Institutionen för kemi- och bioteknik, Oorganisk miljökemi)
Acta Crystallographica Section C: Crystal Structure Communications (0108-2701). Vol. C61 (2005), 12, p. i117-i119.
[Artikel, refereegranskad vetenskaplig]

The structure of dipotassium tetrachromium(VI) tridecaoxide, K2Cr4O13, has been determined from single-crystal X-ray data collected at 173(2)K on a racemically twinned crystal with monoclinic Pc space-group symmetry. The structure is composed of discrete [Cr4O13]2- zigzag chains held together by the charge-balancing potassium ions. The conformations adopted by the tetrachromate anion in alkali metal salts and Cr8O21 are different and can be divided into three categories.

Nyckelord: X-ray diffraction, crystal structure determination, racemic twin, coordination

Denna post skapades 2006-08-25.
CPL Pubid: 9399


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Institutionen för kemi- och bioteknik, Oorganisk miljökemi (2005-2014)


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