Journal of the Chemical Society, Dalton Transactions p. 2825 - 2830 (1995)
Update date:2022-07-30
Topics:
Nagata, Toshi
Mizukami, Junji
A series of dinuclear manganese complexes a substituted benzoic acid and H2L is a Schiff-base macrocyclic ligand formed by a 2 : 2 condensation of 2,6-diformyl-4-methylphenol and N,N-bis(2-aminoethyl)methylamine, were synthesized.The crystal structure (R = 2-O2NC6H4-) showed the presence of two crystallographically independent complex cations with slightly different conformations.The difference can be attributed to the crystal packing effect.These complexes catalysed disproportionation of H2O2; the activities showed a characteristic V-shaped dependence with pKa of RCO2H, which suggests the importance of protonation prior to dissociation of RCO2(1-).
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