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Crystal Structure and Chemical Stabilization of the Triple Salt (KHSO 5 ) 2 ⋅KHSO 4 ⋅K 2 SO 4
Author(s) -
Ermer Otto,
Röbke Christof
Publication year - 2003
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.200390238
Subject(s) - chemistry , ion , sulfate , intercalation (chemistry) , salt (chemistry) , crystallography , crystal structure , potassium , hydrogen bond , crystal (programming language) , inorganic chemistry , molecule , organic chemistry , computer science , programming language
The title compound, a versatile and chemically stabilized oxidant, which is used technologically on a large scale, builds up an intercalation‐type of crystal structure with alternating sheets of sulfate and peroxomonosulfate anions, interspersed by the potassium cations. The sulfate ions are joined by a very short but nonetheless probably asymmetric hydrogen bond. At room temperature, the HSO $\rm{_{5}^{-}}$ ions show dynamic orientational/conformational disorder in the area of the hydrogenperoxo group, which disappears at 100 K. The chemical stabilization of the triple salt is ascribed to shielding of the HSO $\rm{_{5}^{-}}$ ions effected by the intercalation between the sulfate sheets and, furthermore, by the large and abundant K + ions of this potassium‐rich compound.