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Synthesis of Fluorescent Molecular Switches Based on Porphyrinoids Covalently Linked with Redox Active Ligands by Kharu Nisa; Gaurav Kumar Mishra; M. Thirumal; Shive M.S. Chauhan is a Chemistry article available to read on EtoBox.

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a b s t r a c t 5,15-bis(1-hydoxy-2,6-di-tert-butyl-phenyl)10,20-bis-(pentaphenyl-phenyl)phenyl porphyrin and its Nickel complex were synthesized. Oxidation with NOBF 4 gave 5,15bis(1-oxo-2,6-ditertairy-butyl-phenyl)10,20bis(pentaphenyl-phenyl)phenyl-porphodimethene and Ni bis(1-oxo-2,6-ditertairy-butyl-phenyl)10,20-bis-(pentaphenylphenyl)phenyl porphodimethene. The porphyrin conjugates were characterized by NMR, mass, and UV-visible spectroscopy for structural elucidation. The density functional theory studies revealed a decrease in the highest occupied and the lowest unoccupied molecular orbital (HOMO-LUMO) energy gaps in the oxo-porphodimethenes. The photochromism and fluorescence characteristics were also studied. The porphyrin moieties were found to be desirable for the reversible light-driven fluorescent molecular switches.

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Author

Kharu Nisa; Gaurav Kumar Mishra; M. Thirumal; Shive M.S. Chauhan

Published

2022

Language

EN

Field

Chemistry (Physical Sciences)