
TY  - JOUR
A1  - Easteal, AJ 
T1  - Luminescence of Salicylic Acid in Concentrated Aqueous ZnCl<sub>2</sub> + LiCl Solutions
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1979
VL  - 32
IS  - 6
SP  - 1177
EP  - 1181
KW  - 
UR  - https://doi.org/10.1071/CH9791177 
N2  - The luminescence of 1.158 &#215; mol dm-6 solutions of salicylic acid in (1-X)ZnCl2,4H2O + XLiCl,4H2O has been investigated. The luminescence band half-width (&#916;½) and (&#955;max)wavelength of maximum intensity (&#955;max) have been determined as a function of the relative proportions of the components ZnCl2,4H2O and LiCl,4H2O. Both &#916;½ and &#955;max are invariant or almost invariant within experimental precision in the approximate composition regions O &#8804; X &#8804; 0.4 and 0.6 &#8804; X &#8804; 1. &#955;max shifts to shorter wavelength and &#916;½ decreases sharply, in the approximate composition range 0.4 &#8804; X &#8804; 0.6. The results are interpreted as indicating that addition of LiCl,4H2O to ZnCl2,4H2O causes initially depolymerization of species in which both water and chloride are coordinated to zinc, and that replacement of H2O by Cl- in the primary coordination sphere of zinc begins to occur at about X = 0.4 and is complete at a composition close to that corresponding to the tetrachlorozincate anion stoichiometry. 
ER  -

