Photolysis of Simple Ions in Acid Media

This earliest as well as the simplest of all the meth s volves photolysis of transition metal ions such as Cu, Fe, Eu and others in their CTTS (Charge Transfer To Solvent) bands in acidic media. Systems of this type for photoproduction of reported till date are collected in Table II. General features of this type of systems can be summarised as follows  

H observed, however, are fairly high (O.l - 0.8). Visible light photolysis of the CT bands in colored metal complexes of these ions, in few cases reported (e.g. Cu (phen) ) however failed to produce 

Sgipe of the metal ions that have been photolysed, e.g. Cr,  

Eu are thermodynamically capable of reducing H O in the dark in dilute acids. production photochemically using UV light in these systems, thus, is not energy stor g. has bg n known for 

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