A [Fe(bpy)₃]²⁺ grafted graphitic carbon nitride hybrid for visible light assisted oxidative coupling of benzylamines under mild reaction conditions

Abstract

Iron(ii) bipyridine grafted on graphitic carbon nitride (Fe(bpy)3/npg-C3N4) was found to be an efficient photocatalyst for oxidative coupling of benzyl amines using molecular oxygen as an oxidant and a household white LED as a light emitting source.

Carbon Nitride Grafted Cobalt Complex (Co@npg‐C3N4) for Visible Light−Assisted Esterification of Aldehydes

“…The primary survey scan of Co@npg‐C 3 N 4 shows peaks at 284, 410, 530, 779 eV and 940 eV due to C1s, N1s, O1s, Co2p and OKLL respectively confirms the presence of all desired elements in the photocatalyst (Figure S2). High resolution XPS spectrum of Co@npg‐C 3 N 4 in the C1s region revealed two characteristic peak components at 287.5 and 291.1 eV due to the C–C and N=C–N 2 types of carbon respectively (Figure a) ,. Wide scan in N1s region of Co@npg‐C 3 N 4 shows two peak components at 399.2 and 399.9 eV originated due to secondary nitrogen C=N–C and tertiary nitrogen (N–(C) 3 ) respectively (Figure b) ,.…”

“…However, immobilization of metal complexes to CN support via covalent attachment comparatively less explored. Very recently, we have reported graphitic carbon nitride supported ([Fe(bpy) 3 ] 2+ ) photocatalyst for oxidative coupling of benzyl amines under mild reaction conditions …”

Artificial Photosynthesis with Polymeric Carbon Nitride: When Meeting Metal Nanoparticles, Single Atoms, and Molecular Complexes

“…However, the mass content of MgPc in the hybrid structure reached only 0.15 wt%, due to the weak π–π stacking interaction between MgPc and mpPCN. Except for these Mg and Zn contained molecular complexes, iron(II) bipyridine complex (Fe(bpy) 3 ) was also employed to modify the nanoporous carbon nitride (npPCN) via π–π stacking interaction (Figure b) . However, these photocatalyst systems organized by the π–π stacking interaction suffered from the low loading and poor stability, due to the weak interaction between PCN and metal molecular complexes.…”

“…b) Synthesis of Fe(bpy) 3 /npPCN. Reproduced with permission . Copyright 2016, Royal Society Chemistry.…”

A Novel [Fe(acac)3] Interspersed g‐C3N4 Heterostructure for Environmentally Benign Visible‐Light‐Driven Oxidation of Alcohols

“…It has found several applications in organic transformations viz. photoacetalization of aldehydes/ketones, oxidative coupling of benzylamines, oxidation of alcohols, reduction of carbon dioxide . Graphitic carbon nitride has appealing applications like metal free base catalyst for NO decomposition, as base material for oxygen reduction reaction, functional material for the synthesis of nanosized metal particles etc .…”