Spectroscopic observation of each step in the solvation of ion pairs. Lithium(1+) nitrate(1-) in aprotic solvents

1981 ◽  
Vol 85 (10) ◽  
pp. 1387-1391 ◽  
Author(s):  
John P. Toth ◽  
Gary Ritzhaupt ◽  
J. Paul Devlin
Keyword(s):  
Ion Pairs ◽  
Spectroscopic Observation ◽  
Aprotic Solvents

Octahedral cobalt(III) complexes in dipolar aprotic solvents. II. Association between cis- and trans-dichlorobisethylenediamine cobalt(III) cations,[Co en2 Cl2]+, and chloride and bromide ions in the solvents NN-dimethylformamide, dimethyl sulphoxide, and LVN-dimethylacetamide

1966 ◽  
Vol 19 (1) ◽  
pp. 43 ◽  
Author(s):  
WA Millen ◽  
DW Watts
Keyword(s):  
Spectrophotometric Method ◽  
Ion Pairs ◽  
Ion Association ◽  
Ion Pair ◽  
Association Constants ◽  
Dimethyl Sulphoxide ◽  
Aprotic Solvents ◽  
Ion Association Constants ◽  
Cis And Trans ◽  
Dipolar Aprotic Solvents

Ion association constants at 30� have been determined for the cis-[Co en, Cl2]+Cl- ion pair in NN-dimethylformamide (DMF), NN-dimethylacetamide (DMA), and at 20.0�, 25.0�, and 30.0� in dimethyl sulphoxide (DMSO), by a spectrophotometric method. Association constants for the cis-[Co en2 Cl2]+Br- and the trans- [Co en2 Cl2]+Cl- ion pairs have also been determined in DMF at 30�.

Chromium(III) complexes in dipolar aprotic solvents. VII. Competitive anation studies with [Cr(Me2SO)6]3+ in dimethyl sulphoxide

1975 ◽  
Vol 28 (3) ◽  
pp. 501
Author(s):  
STD Lo ◽  
DW Watts
Keyword(s):  
Ion Pairs ◽  
Product Formation ◽  
Dimethyl Sulphoxide ◽  
Aprotic Solvents ◽  
Interchange Reaction ◽  
Dipolar Aprotic Solvents

P.The competitive anation reactions: [Cr(Me2SO)6]3+ + X- + Cl- [CrCl(Me2SO)5]2+ + Me2SO CrX(Me2SO)5]2+ + Me2SO [CrX(Me2S0)5]2*+ Me2S0 where X- is N3- or SCN- have been studied in Me2SO at one temperature as a function of the concentrations of X- and Cl-. The results are compatible with a dissociative interchange reaction of ion aggregates, and require that ion triplets as well as ion pairs contribute to product formation. The results are consistent with our previous results on the anation of Cr(Me2SO)63+ separately by SCN-, N3- and Cl-.

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