Kinetic and spectroscopic intimations of intermediates in nucleophilic attack at diimine complexes of iron(II) and of molybdenum(O)

Kinetics of Dissociation of tris-{3-(2-pyridyl)-5,6-bis(2-furyl)-1,2,4-triazine}iron(II)

“…This electrostriction effect will be dominated by the release of water from the hydroxide solvation shell in some or all of the processes which make up the overall reaction. The only volume data available for comparison are for the reaction of [Fe(ppsa) 3 ] 4) with OH ) , where DV°=0, DV z ¼ À2 cm 3 mol )1 for initial equilibrium and for intermediate plus hydroxide respectively [34]. However comparisons here are greatly complicated by the different charges and charge products (z A z B =)2 for [Fe(fertri) 3 ] 2+ -OH ) , )1 for [Fe(fertri) 2 (fertriOH)] + -OH ) , but +4 for [Fe(ppsa) 3 4À -OH ) ) and hence the major differences in solvation effects which may be involved.…”

Solvatochromism and solvation of transition metal complexes in ternary aqueous solvent media

“…Whereas solubilities of uncharged complexes can only be modified by appropriate substitution, for e.g. by sulphonation [36,42] or by the incorporation of long-chain alkyl groups to increase solubility in hydrocarbons [31], solubilities of salts of charged complexes such as [Fe II (CN) 4 (diimine)] 2-or [Fe III (CN) 2 (diimine) 2 ] ? can be tailored by suitable selection of counterion.…”