Synthesis of Vanadyl Complexes of N-Confused Porphyrins and Their Bromoperoxidase-like Catalytic Activity DOI
Rajesh Kumar, Ved Prakash, Muniappan Sankar

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(27), P. 12506 - 12515

Published: June 24, 2024

Two new vanadyl complexes of N-confused porphyrins (NCPs), [VONCTPP] (V-1) and [VONCP(OMe)8] (V-2), have been synthesized for the first time investigated as a catalyst oxidative bromination reaction phenol its derivatives. This article further delineates crystal structures, photophysical, redox properties both complexes. Complexes V-1 V-2 exhibited significant red shift in their absorption spectra compared with respective free bases. The single-crystal structure revealed that complex is 2H tautomeric form, while EPR studies +4 oxidation state vanadium metal having an axial compression dxy1 configuration. Catalytic potential bromoperoxidases-like activity has explored NCP chemistry excellent TOF values (4.7–6.3 s–1 7.3–8.7 V-2) using KBr source bromine H2O2 green oxidant aqueous acidic medium at 298 K. Notably, catalysts show recyclability over five cycles. vanadyl-metalated NCPs exhibit stability air.

Language: Английский

Synthesis of Vanadyl Complexes of N-Confused Porphyrins and Their Bromoperoxidase-like Catalytic Activity DOI
Rajesh Kumar, Ved Prakash, Muniappan Sankar

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(27), P. 12506 - 12515

Published: June 24, 2024

Two new vanadyl complexes of N-confused porphyrins (NCPs), [VONCTPP] (V-1) and [VONCP(OMe)8] (V-2), have been synthesized for the first time investigated as a catalyst oxidative bromination reaction phenol its derivatives. This article further delineates crystal structures, photophysical, redox properties both complexes. Complexes V-1 V-2 exhibited significant red shift in their absorption spectra compared with respective free bases. The single-crystal structure revealed that complex is 2H tautomeric form, while EPR studies +4 oxidation state vanadium metal having an axial compression dxy1 configuration. Catalytic potential bromoperoxidases-like activity has explored NCP chemistry excellent TOF values (4.7–6.3 s–1 7.3–8.7 V-2) using KBr source bromine H2O2 green oxidant aqueous acidic medium at 298 K. Notably, catalysts show recyclability over five cycles. vanadyl-metalated NCPs exhibit stability air.

Language: Английский

Citations

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