Synthesis and Properties of Two Tetrapus Host Molecules with Fluorinated Chains

Article abstract of DOI:10.1016/S0040-4020(01)89585-5

Two tetrapus molecules, 1a and 1b, were synthesized.They each possess fluorinated tentacles with anionic termini, i.e., CH2O(CH2)3(CF2)2O(CF2)2SO3^-,Na⁺ for 1a and CH2O(CH2)3(CF2)4O(CF2)2SO3^-,Na⁺ for 1b.Cationic and anionic naphthalene fluorescence probes with CH2CH2O(CH2)10-chains (FP⁺ and FP^-) were used to study host-guest interactions between partners of the following pairs, i.e., 1a and FP⁺, 1a and FP^-, 1b and FP⁺, 1b and FP^-.Our results demonstrate that electroststic attraction is a powerful factor in facilitating the host-guest interactions between the tetrapus and the long-chain probes.