Structures of oxonium pentafluorozirconate mono- and dihydrates

Crystal Chemistry and Selected Physical Properties of Inorganic Fluorides and Oxide-Fluorides

“…The two-dimensional extension of the connectivity of the [LnX 6 ] chains of LnO 4 F 4 polyhedra, depicted in Figure c for the [TbF 6 ] chain of K 2 TbF 6 , leads to the formation of [LnO 3 F 2 ] layers (Figure a). This layered structure [LnX 5 ] is adopted in KGd­(CO 3 )­F 2 and two hydrated fluorides, [H 3 O]·(ZrF 5 )·H 2 O and [H 3 O]·(ZrF 5 )·2H 2 O …”

“…The two-dimensional extension of the connectivity of the [LnX 6 ] chains of LnO 4 F 4 polyhedra, depicted in Figure 12c for the [TbF 6 ] chain of K 2 TbF 6 , leads to the formation of [LnO 3 F 2 ] layers (Figure 28a). This layered structure [LnX 5 ] is adopted in KGd(CO 3 )F 2 325 and two hydrated fluorides, 326 A disorder between alkaline and rare earth cations implies that the layered structures of Na 3 Y(CO 3 ) 2 F 2 86 and Na 3 Yb-(CO 3 ) 2 F 2 85 are modulated. All layers are disordered in Na 3 Y(CO 3 ) 2 F 2 (Figure 28b), while one every two layers is ordered in Na 3 Yb(CO 3 ) 2 F 2 .…”

Строение Кристаллогидратов Петафторидоциркониевой Кислоты По Данным Колебательной Спектроскопии

“…Авторы работы[15] представили структурную формулу кислоты HZrF 5 • 2H 2 O как H 3 O•ZrF 5 •H 2 O, однако ее ИК спектр отличается от спектра соединений, содержащих ион H 3 O + или ассоциат H 3 O + •H 2 O. Положение полос в спектрах HZrF5 • 3H 2 O, HZrF5 • 2H 2 O, ZrF 4 •H 2 O и их отнесение…”