Diamagnetic, definition

A diamagnetic body such as a droplet of water has, by its very definition, negative magnetic susceptibility. In the presence of a magnetic field, a force acts on the body when the scale of the magnetic-field... 

The CIDNP method is an indirect method, since the hyperfine pattern of a paramagnetic intermediate is derived from the unusual NMR intensities of a diamagnetic product derived from it. Accordingly, it appears necessary to discuss limitations and potential sources of misassignments. First, the CIDNP method does not provide any evidence for the nature of the paramagnetic intermediate, particularly there is no definitive evidence for the presence of the charge. This feature is derived typically on the basis of mechanistic considerations and from supporting secondary experiments. 

The cationic metal carbonyls are, by definition, electrolytes in polar solvents, and are in general diamagnetic and conform to the rare gas formalism of metal carbonyls (7, 57). 

Orange-red diamagnetic complexes of Pd and Pt with mercaptoacetic acid and 3-mercaptopropionic acid have been reported (see p. 390)48 Simple bis-complexes of N-pyrrolidyl monothiocarbamate with Pd and Pt are not formed,50 but i.r. studies indicate that the tetrakis-complexes are bonded through both O and S, although no definite structure has been proposed. Extraction of the metals Pd, Pt, Ag, and Au from aqueous solution by a large number of alkyl and alkene disulphides and sulphides has been reported (see p. 390).51,52... 

Faraday was thus able to enunciate his two laws of electrolysis. His second law implied that both matter and electricity were atomic in nature. Faraday was deeply opposed to atomism, especially the theory proposed by John Dalton, and indeed held a very antimaterialist view. It was clear to Faraday, however, that the law of definite proportions also required some sort of atomic theory. What Faraday proposed in the 1840s was that matter was perceived where fines of force met at a particular point in space. A direct experimental outcome of this radical theory was Faraday s discovery in 1845 of the magneto-optical effect and diamagnetism. The field theory that Faraday developed from this was able to solve a number of problems in physics that were not amenable to conventional approaches. This was one reason why field theory was taken up quite quickly by elite natural philosophers such as William Thomson (later Lord Kelvin) and James Clerk Maxwell. 

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