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Interactions between Gemini Surfactants, 12-s-12, and β-cyclodextrin As Investi...

The interaction between β-cyclodextrin (CD) and gemini surfactant of the type alkyl-α,ω-bis(dodecyldimethylammonium bromide) with different spacer lengths of 2, 8, and 10 carbons has been investigated by means of electric conductivity (EC) and proton self-diffusion NMR at 298 K. The formation of a 2:1 (CD:gemini) complex in a two-step mechanism is observed with the first association constant (K11) higher than t...