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Cu(II) Complex onto a Pyridine‐Based Porous Organic Polymer as a Heterogeneous Catalyst for Nitroarene Reduction
Author(s) -
Khatioda Rajiv,
Pathak Debabrat,
Sarma Bipul
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201801003
Subject(s) - catalysis , porosity , materials science , polymer , x ray photoelectron spectroscopy , pyridine , chemical engineering , heterogeneous catalysis , chemistry , organic chemistry , composite material , engineering
Unlike traditional catalysts, a Cu(II) catalyst incorporated onto a new pyridine based porous organic polymer linked by carboxamide functionality has been developed by impregnation method. Materials are characterized using FT‐IR, solid‐state NMR, PXRD, SEM, TEM techniques. The uniform confinement effect of the Cu(II) loaded polymer is assured by energy‐dispersive X‐ray (EDX) elemental mapping, ICP and AAS spectroscopic analysis. The Cu(II) loaded material further employed as a heterogeneous catalyst for nitroarene reduction and reported as an excellent catalyst with improved performances over those reported using expensive and precious metals (like Au and Pd) on immobilized organic porous materials. The oxidation state of Cu in the catalytic cycle is corroborated with XPS analysis. The present study also emphasizes the role of π ‐electron rich organic porous polymer as promoter of electronic stature of finely dispersed Cu sites accountable for the excellent catalytic activity towards nitroarene reduction.