Author/Authors :
Sullivan، نويسنده , , Shane Z. and Ghosh، نويسنده , , Anindya and Biris، نويسنده , , Alexandru S. and Pulla، نويسنده , , Sharon and Brezden، نويسنده , , Anna M. and Collom، نويسنده , , Samulel L. and Woods، نويسنده , , Ross M. and Munshi، نويسنده , , Pradip and Schnackenberg، نويسنده , , Laura and Pierce، نويسنده , , Brad S. and Kannarpady، نويسنده , , Ganesh K.، نويسنده ,
Abstract :
This work presents the spectroscopic characterization and reaction studies of a FeIII-complex (2) of a tetraamido macrocyclic ligand (1, 15,15-dimethyl-5,8,13,17-tetrahydro-5,8,13,17-tetraaza-dibenzo[a,g]cyclotridecene-6,7,14,16-tetraone). 2 was characterized primarily by means of EPR. In agreement with the magnetic moment (μeff = 3.87 BM), EPR spectroscopy of 2 shows signals consistent with S = 3/2 intermediate-spin ferric-iron. Besides EPR, mass spectrometry, UV/vis spectroscopy and cyclic voltammetry were used to further characterize 2. 2 is soluble in water and activates hydrogen peroxide under ambient conditions. 2 catalytically bleaches dyes, pulp and paper effluents and oxidizes several amines to their corresponding N-oxides with high turnover number and good yields.
