Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels.In a patent， Computed Properties of C12H28BrN, Which mentioned a new discovery about 1941-30-6
The B coefficents of the Jones-Dole viscosity equation are a measure of the size of the ions and of the interaction between the ions and the solvent.The B coefficients have been determined for the electrolytes Bu4NBu4B, Bu4NBr, Bu4NI, Ph4PBr, Ph4PI, NaI, and NaPh4B, and for the homologous series from Et4NBr to Hept4NBr in acetonitrile at 25 and 35 deg C.Ionic B values for the bromide and iodide ions have been calculated from the B coeficients for the tetra-alkylammonium solutions and are compared with those obtained from the tetraphenylphosponium solutions.The transition-state treatment has been applied to the results, and the thermodynamic activation parameters for viscous flow have been calculated.These are compared with those found previously for solutions of dimethyl sulphoxyde, hexamethylphosphoric triamide and N,N-dimthylformamide, and are discussed in terms of the new theory of B coefficients proposed by Feakins.
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Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI