Novel complexes of Mn(III) with macrocylic porphine ligand and ethylenediamine

Abstract

The present work describes the synthesis and characterization of a few Mn(III) porphyrins with ethylenediamine. A new series of high-spin Mn(III) porphyrins having general formula [Mn(TMPP)X] and [Mn(TMPP)X(en)], where TMPP ¼ tetra-p-methoxyphenylporphinato ligand, X ¼ Cl À , Br À , N À 3 or NCS À and en ¼ ethylenediamine. Molar conductance values of these complexes show their non-electrolytes in ethyl alcohol. These complexes have been characterized by U.V., I.R., ESI-mass spectra, elemental analyses and magnetic susceptibility measurements. The tentative structures have also been proposed.

Some novel organometallic MnIII complexes with porphine and 1,6-diaminohexane

“…On the basis of positions of ν(NH 2 ) in IR spectra of [Mn III (TTP)X(dah)] complexes, it was concluded that 1,6-diaminohexane is co-ordinated to Mn III as unidentate ligand. The ESI-mass spectra indicates that these complexes are monomeric in nature having octahedral geometry, while the [Mn III (TTPX] complexes have square pyramidal geometry as reported earlier [38,39]. The previously synthesized Mn III -porphyrins have shown depolymerisation activity towards Humic acid model compound, in the same way these newly synthesized Mn III porphyrins can be studied for their depolymerisation activity which can also be used as a feedstock for preparation of commodity and rare chemicals.…”

“…For [38,39] (Table 4). The intense band at 445-460 nm in electronic spectra of these complexes are assigned to charge transfer band from a 1u (π) and a 2u (π) orbital of porphyrin to e g (dπ) orbital of manganese [40][41][42].…”

Synthesis, Characterization and Antifungal Activities of Some Novel Mixed Ligand Complexes of Manganese(III) g-Diketone

“…Manganese has significant chemical and biological importances [1][2][3][4][5][6][7]. This is supported the global research interests in the studies of Mn(III) complexes [8][9][10][11][12][13]. Wide variety of high spin Mn(III) octahedral complexes are reported in literature [14][15][16][17][18].…”

Overall Surfacial Antenna Immobilization Boosts Carrier Migration for Visible Light Superoxide Generation

“…Fourier transform infrared (FT-IR) measurements for ZIF-8 and ZIF-8-Pp exhibit that the vibration of 421 and 1420 cm –1 can be attributed to the Zn–N bonds and C–N in imidazole rings respectively. Moreover, for Pp and ZIF-8-Pp, the vibrations at 800, 880, and 1594 cm –1 are assigned to the C–H, −CH 2 , and −C = N bonds of porphyrin molecules, respectively. The appearance of the vibrations from Pp and the imidazole ring in ZIF-8-Pp directly verify the immobilization of Pp onto ZIF-8 (Figure c).…”