Abstract
The cobalt(II) species resulting from room-temperature photolysis of aqua(sec-butyl)bis(dimethylglyoximato)cobalt(III)[CoIII(Hdmg)2Bus(H2O)] solutions in the presence of various amounts of each of 27 different N-donor bases L were studied by electron spin resonance spectroscopy and the ESR spectra compared, when possible, with those of irradiated solutions of the corresponding [CoIII(Hdmg)2Bus(L)] compounds. From the ESR results, the bases could be grouped according to the position of the substituents. Both base strength and steric effects seem to play a role in the formation of 1 : 1 and 1 : 2 cobalt (II) adducts although no definite correlation between the ESR parameters determined for the various species and basicity was found.
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