Furthermore, the addition of salts such as KI, Ca(SCN)2, or Mg(ClO4)2 to solutions of the betaine dye in acetonitrile also induces a hypsochromic shift of the electronic absorption spectrum that increases with me charge density of the cations. The combination of both properties is termed ...
(ClO4)2to solutions of the betaine dye in acetonitrilealso induces a hypsochromic shift of the electronic absorption spectrum that increases with the chargedensity of the cations. The combination of both properties is termed “halosolvatochromism” [19].© 2001 IUPAC,Pure and Applied Chemistry73...