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Synthesis, crystal structure, and properties of pentadecafluorotetraantimonate(III) CsRb2Sb4F15

“…The structure contains four crystallographically independent antimony atoms, whose coordination polyhedra are trigonal SbF 4 E bipyramids: two of these bipyramids are linked to the [Sb 2 F 7 ] À dimer. Geometric parameters of polyhedra of the compound I (see Table in supporting information) are similar to those described in [15] for the complex II. 8-and 9-vertex structures are the coordination polyhedra (CP) of the Rb1 and Rb2 atoms with Rb-F distances 2.795-3.230 Å , whereas a 8-vertex structure is the CP of the Cs atom with Cs-F distances 3.091-3.367 Å .…”

“…The compounds belonging to the group of pentadecafluoroantimonates(III), in which the ratio F:Sb = 3.75, have been studied insufficiently. The available literature contains the reports on the solid-phase synthesis of complexes M 3 Sb 4 F 15 (M = K, Rb, Cs) [3] and the classic synthesis of compounds of such compositions with potassium [10], cesium, and ammonium [13][14][15] cations from aqueous solutions. Each of the known structures of M 3 Sb 4 F 15 (M = Cs, NH 4 ) contains four crystallograhically independent antimony atoms, whereas the compounds themselves are not isostructural to each other [15].…”

“…The available literature contains the reports on the solid-phase synthesis of complexes M 3 Sb 4 F 15 (M = K, Rb, Cs) [3] and the classic synthesis of compounds of such compositions with potassium [10], cesium, and ammonium [13][14][15] cations from aqueous solutions. Each of the known structures of M 3 Sb 4 F 15 (M = Cs, NH 4 ) contains four crystallograhically independent antimony atoms, whereas the compounds themselves are not isostructural to each other [15]. The formation of superionic phases having the conductivity around 10 À3 -10 À2 S/cm (T > 440 K) was established at studies of the character of ionic motions and phase transitions in the compounds (NH 4 ) 3 Sb 4 F 15 , Cs 3 Sb 4 F 15 , and K 3 Sb 4 F 15 [10,14].…”

Complexation processes in KF-SbF3-H2O system studied by calorimetric titration

“…The crystal structures were determined for all compounds, except for K 3 Sb 4 F 15 (unfortunately, we could not obtain a crystal appropriate for X-ray diffraction analysis). Similar structures of complexes with Cs + and N cations are known [23]. The thermal properties of the antimony(III) fluoride complexes with the K + cation were studied in several works ( Table 1).…”

Conditions for the synthesis of Sb(III) fluoride complexes

“…The structures of the most of the AFC synthesized from the MF-SbF 3 -H 2 O systems (M = Na, K, Rb, Cs, NH 4 , and Tl) are known [11][12][13][14][15][16][17][18][19][20].…”