ONE-STEP FORMATION AND CHARACTERIZATION OF ZN(II)-CR(III) LAYERED DOUBLE HYDROXIDES, ZN2CR(OH)(6)X (X = CL, 1 2SO(4))/

Authors
BOCLAIR JW BRATERMAN PS
Citation
Jw. Boclair et Ps. Braterman, ONE-STEP FORMATION AND CHARACTERIZATION OF ZN(II)-CR(III) LAYERED DOUBLE HYDROXIDES, ZN2CR(OH)(6)X (X = CL, 1 2SO(4))/, Chemistry of materials, 10(8), 1998, pp. 2050
Citations number
26
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
Chemistry of materials → ACNP
ISSN journal
08974756
Volume
10
Issue
8
Year of publication
1998
Database
ISI
SICI code
0897-4756(1998)10:8<2050:OFACOZ>2.0.ZU;2-6
Abstract
Titration curves show that the layered double hydroxide Zn2Cr(OH)(6)Cl , unlike Zn2Fe(OH)(6)Cl (shown) or Zn2Al(OH)(6)Cl (not shown) forms di rectly from solution, without the intermediacy of ''M-III(OH)(3)'', wh en a mixture of metal chlorides is treated with base. Co(II), Ni(II), and Cu(II) behave similarly. Spectroscopic and titrimetric data show t hat Zn2Cr(OH)(6)Cl is formed initially from mixed solutions of various stoichiometries and suggest that the Zn(II) and Cr(III) ions may be l ocally ordered.