Studies on synthesis and properties of supermolecular compound involving cobaltoximes with a long chain alkyl and β-CD

Two supermolecular adducts involving β-cyclodextrin (β-CD) and long carbon chain alkyl (aqua) cobaltoximes (R = C₆H₁₃ and C₈H₁₇) have been synthesized for the first time and characterized by elementary analysis, UV-Vis and ¹H NMR. We used the cyclic voltammetry methods to characterize the electrochemical behaviour of the inclusion process. In addition, their formation constant K_a was quantitatively determined by using UV-Vis methods. It has been shown that the longer the carbon chain of the alkyl groups are, the more stable the inclusion complexes are. furthermore, by adding n-C₈H₁₇Co(DH)₂H₂O/β-CD to the aqueous solution, it has been found that the formation constant decreased.