Synthesis and physicochemical investigation of LiMTif6

Guanidinium Perfluoridotitanate(IV) Compounds: Structural Determination of an Oligomeric [Ti6F27]3– Anion, and an Example of a Mixed‐Anion Salt Containing Two Different Fluoridotitanate(IV) Anions

“…The existence of [TiF 6 ] 2– salts with mixed cations was demonstrated by alkali metal salts . On the other hand, there are only four examples of the mixed‐anion compounds, i.e., [NH 4 ] 3 [TiF 7 ] and [NH 4 ][Cu][TiF 7 ] · 4H 2 O, consisting of [TiF 6 ] 2– and F – anions, Na 3 HTiF 8 with [TiF 6 ] 2– and [HF 2 ] – anions and [Na] 3 [NH 4 ][TiF 6 ][SO 4 ] · H 2 O with [TiF 6 ] 2– and [SO 4 ] 2– .…”

Synthesis and physicochemical properties of new zirconium fluoro complexes (NH4)4.5M4.5Zr6F33 · 3H2O (M = Li, K, Rb, Cs)

“…These bands are supposed to characterize the vibrations of fluorozirconate polyhe dra. This hypothesis is based on the comparison with the IR spectra of a wide range of crystalline fluorozir conates repeatedly studied by IR spectroscopy [1][2][3][11][12][13]. The spectrum of (NH 4 ) 2 ZrF 6 , which is built of polyhedra linked by bridging bonds and hav ing CN = 8 [14], is shown in the figure for compari son.…”

“…The position of these bands corresponds to the region of the bands charac terizing the stretching vibrations of water molecules, ammonium groups [11], and HF molecules [3,12,13]. Judging from the results of chemical analysis, the complexes studied do not contain HF molecules, and the IR spectra considered do not have any bands in the region of 950-800 cm -1 [3].…”