A series of paramagnetic di(aryl)alkynylphosphine oxides [PF6] featuring an open-shell [Fe(κ(2)-dppe)(η(5)-C5Me5)](+) endgroup were obtained by oxidation of their neutral Fe(II) parents 3a-c, themselves obtained in a simple and nearly quantitative fashion from the corresponding Fe(II) metallophosphines 1a-c. The new organometallic radicals were characterised by NMR and ESR and were shown to be perfectly stable in solution, in contrast to species such as 1a-b[PF6] which readily dimerise.
This paper distinguishes six elements in the Platonic concept of rationality as it appears in the Republic: (a) being fully informed; (b) thinking logically; (c) having the single correct ultimate end; (d) determining the appropriate means; (e) matching action to thought; and (f) promoting one's own interest. The evidence linking the rational part of the soul (the logistikon) to each of these aspects is discussed. The philosopher-guardians are shown to exemplify fuH and complete "Platonic rationality", whereas the unjust men in books 8 and 9 exhibit different degrees of failure to conform to the six elements listed above.
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