Radiolysis of cobalt (II)‎ and nickel (II)‎ -complexes containing mixed ligands by gamma rays

Abstract EN

The effect of gamma-radiation has been studied directly on some solid complexes cobalt (II) and nickel (II) complexes having the formula [M2(LH2)2(AH2)2(NO3)2](NO3)2 , [M2(LH2)2(AH2)2Xn] and [M2(SCH)2(AH)2] (where M = Co + 2 or Ni + 2, AH2 = any of the following carboxylic acid “ salicylic acid–SH2 , anthranilic acid–AnH2 or phthalic acid–PH2”, LH2 = salicylaldehyde semicarbazone–SCH2 or salicylaldehyde thiosemicarbazone-STH2 , X = CO3 -2 or CH3CO2 - ; n = 0, 2 or 4).

Ionization and excitation of these complexes have been achieved .

The melting or decomposition points, conductivities and electronic spectral data have been indeed related to the final stable products .

The results showed that some of the complexes have been decomposed by gamma ray, others complexes have not been affected .

Very interesting results have been obtained in the case of, [Co2(SH2) 2 (SCH2) 2 (NO3) 2] (NO3)2 , [Ni2 (SH2) 2 (STH2) 2 (NO3) 2] (NO3)2 , [Co2(SH) 2 (SCH) 2] , [Ni2(AnH2) 2 (STH2) 2 (NO3)2](NO3)2 , [Ni2(PH2) 2 (STH2) 2 (NO3) 2 ](NO3) 2 , [Co2(PH) 2 (SCH) 2] in which a sort of polymerization have been exhibited after their radiolysis .