Fourier Transform Infrared Spectroscopic Characterization of Olefin Complexation by Silver Salts in Solution

摘要: Complex formation between 1-hexene and silver salts in chloroform solution has been characterized using Fourier transform infrared spectroscopy. Silver tetrafluoroborate, AgBF4, triflate, AgCF3SO3, form 1:2 Ag+:1-hexene complexes solution. The olefinic CC vibrational stretching frequency at 1640 cm-1 shifts to approximately 1580 upon complexation with these salts. trifluoroacetate, AgCF3CO2, exhibits limited nitrate, AgNO3, no measurable complexation. Salts the larger BF4- CF3SO3- anions have a much stronger tendency than those smaller NO3- CF3CO2- anions. of was most strongly correlated anion size not well-correlated measures anion-donor electron density or softness parameter. effect ether-containing compounds, such as triethylene glycol (TEG) poly(ethylene glycol) (PEG), on silver−olefin interactio...