Dipotassium L-Tartrate Semihydrate

Potassium sodium (2R,3R)-tartrate tetrahydrate: the paraelectric phase of Rochelle salt at 105 K

“…For previous and related structures, see: Beevers & Hughes (1941); Iwata et al (1989); Solans et al (1997); Ottenz et al (1998); Hinazumi & Mitsui (1972); Kay (1978); Kuroda & Mason (1981); Brożek & Stadnicka (1994); Suzuki et al (1996a,b); Ambady & Kartha (1968); Boese et al (1995). For irradiation studies, see: Suzuki (1974);Treeck, van & Windsch (1977).…”

“…2, is very similar to those found in the P2 1 2 1 2 structures of other salts of tartaric acid in which Na + is replaced by Li + and/or K + by NH 4 + or Tl + [Li + /K + : Ottenz et al, 1998; Li + /NH 4 + : Hinazumi & Mitsui, 1972; Li + /Tl + : Kay, 1978; Na + /NH 4 + (II): Kuroda & Mason, 1981;Brożek & Stadnicka, 1994;Suzuki et al, 1996a] as well as in salts where K + has been only partly replaced by NH 4 + (Suzuki et al, 1996a;Suzuki et al, 1996b). The pure sodium (Ambady & Kartha, 1968) or potassium salts (Boese et al, 1995) on the other hand, have completely different structures.…”

Syntheses and ligand exchange experiments of N,N-dialkylcarbamate bridged {Al3(μ3-O)}7+ complexes

“…The conventional I -centered cell was chosen, since the unit cell has an angle β closer to 90°, shows a better convergence and lower correlations between the refined atomic parameters than the C -centered alternative. 50 This procedure is the recommended way of acting in those cases. 51,52 The crystal structure of (1a) (ES0113p_n9) contains the aluminum complex cation, one chloride ion and six benzene molecules in the asymmetric unit.…”