Effects of Electrolytes on the Configuration Change of Cobalt(II)-Halide Complexes in Chloroform/Water Reverse Micelle Systems.

摘要: The effects of various salts and HClO4 on the configuration change cobalt(II)-halide complexes in CHCl3/CTAC or CTAB/H2O reverse micelle systems were examined at 25 degrees C by means spectrophotometry, where CTAC CTAB represent cetyltrimethylammonium chloride bromide, respectively. formation [CoCl4]> [CoBr4]2- species tetrahedral from [Co(H2O)6]2+ octahedral micelles was greatly promoted not only a decrease W value (W = [H2O]/[surfactant]), but also, constant (e.g., 2.0), addition relatively low concentrations acid 4.0 mol dm(-3) aqueous phase x 10(-2) whole system). perchlorate increased as Na+ < Li+ approximately H+ Sr2+ Ca2+ Mg2+. Non-metallic salts, tetraalkylammonium (R4N+) lower concentrations, gave minor effects. enhanced metal interpreted further distortion hydrogen-bonded structure water "water pool" presence even concentrations. A conformation with increasing temperature also attributed to structure. An almost completed well [CoCl4]2- attained 0.69 containing LiClO4 HClO4. partial transfer [CoX4]2- into CHCl3 may be suspected. examination cobalt(II)-bromide dichloromethane/CTAB/H2O 1.3 - 5.55 justified all arguments concerning chloroform systems. Raman spectra D2O concentrated LiBr have supplied conclusive evidence that bulk is completely distorted extremely salts.