2017
DOI: 10.1002/zaac.201600390
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From Infinite Chains according to1[Zr(S2O7)4/2] in Zr(S2O7)2to the unprecedented [Zr(S2O7)4]4-Anion in Ag4[Zr(S2O7)4]

Abstract: The reaction of ZrCl4 with oleum (65 % SO3) in the presence of Ag2SO4 at 250 °C yielded colorless single crystals of Zr(S2O7)2 [orthorhombic, Pccn, Z = 4, a = 709.08(6) pm, b = 1442.2(2) pm, c = 942.23(9) pm, V = 963.5(2) × 106 pm3]. Zr(S2O7)2 shows Zr4+ ions in an eightfold distorted square antiprismatic coordination of oxygen atoms belonging to four chelating disulfate units. Each S2O72– ion is connected to a further Zr4+ ion leading to chains according to 1∞[Zr(S2O7)4/2]. The same reaction at a temperature … Show more

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