
TY  - JOUR
A1  - Podmore, LPSPW 
T1  - Studies of vanadium(III) aqua chloro complexes and some related compounds
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1972
VL  - 25
IS  - 12
SP  - 2521
EP  - 2534
KW  - 
UR  - https://doi.org/10.1071/CH9722521 
N2  - Preparative and structural studies on several series of vanadium(111) aqua chloro complexes and related compounds are reported. Results indicate that all compounds contain vanadium(111) in pseudo-octahedral coordination. Evidence is presented from electronic, infrared, and nuclear quadrupole resonance spectra, X-ray powder diffraction, and magnetic data. The compounds of empirical formulae VX3,6H2O (X = Cl, Br), RbVCl4,6H2O, and Cs2VX5,nH2O (X = Cl, n = 4; X = Br,n = 5) are all shown to contain the green trans-[V(OH2)4X2]+ ion. For compounds of formula AI2VCl5,H2O (A = Cs, Rb, K, NH4) prior methods of preparation are reexamined and a new method of preparation is given. Physical studies confirm that these compounds contain the red complex ion [V(OH2)Cl5I2-. The salts comprise structures of two types, one for A = Cs, the other for A = K, NH4, Rb; the latter salts are isostructural with K2FeCl5,H2O. The anhydrous compounds A12VCl5 (A = Cs, Rb) are also examined and the preparation of the rubidium salt is reported for the first time. For these compounds the magnetic results are interpreted in terms of a weak antiferromagnetic interaction in a proposed polymeric structure and this is supported by other evidence. Some data are reported for VBr3 and VI3. 
ER  -

