Carbon Nitride as a Ligand: Selective Hydrogenation of Terminal Alkenes using [(η5-C5Me5)IrCl(g-C3N4-κ2N, N')]Cl: Selective Hydrogenation of Terminal Alkenes using [(η5-C5Me5)IrCl(g-C3N4-κ2N, N')]Cl

TY - JOUR

T1 - Carbon Nitride as a Ligand: Selective Hydrogenation of Terminal Alkenes using [(η5-C5Me5)IrCl(g-C3N4-κ2N, N')]Cl

T2 - Selective Hydrogenation of Terminal Alkenes using [(η5-C5Me5)IrCl(g-C3N4-κ2N, N')]Cl

AU - Coulson, Ben

AU - Lari, Leonardo

AU - Isaacs, Mark

AU - Raines, Daniel J

AU - Douthwaite, Richard Ephraim

AU - Duhme-Klair, Anne-K

N1 - © 2020 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

PY - 2020/2/4

Y1 - 2020/2/4

N2 - Anchoring a homogeneous catalyst onto a heterogeneous support facilitates separation of the product from the catalyst, and catalyst-substrate interactions can also modify reactivity. Herein we describe the synthesis of composite materials comprising carbon nitride (g-C 3 N 4 ) as the heterogeneous support and the well established homogeneous catalyst moiety [Cp*IrCl] + (where Cp* = η 5 -C 5 Me 5 ), commonly used for catalytic hydrogenation. Coordination of [Cp*IrCl] + to g-C 3 N 4 occurs directly at exposed edge sites with a κ 2 N, N' binding motif, leading to a primary inner coordination sphere analogous to known homogeneous complexes of the general class [Cp*IrCl(NN-κ 2 N, N' )] + (where N, N' = a bidentate nitrogen ligand). Hydrogenation of unsaturated substrates using the composite catalyst is selective for terminal alkenes, which is attributed to the restricted steric environment of the outer coordination sphere at the edge-sites of g-C 3 N 4 .

AB - Anchoring a homogeneous catalyst onto a heterogeneous support facilitates separation of the product from the catalyst, and catalyst-substrate interactions can also modify reactivity. Herein we describe the synthesis of composite materials comprising carbon nitride (g-C 3 N 4 ) as the heterogeneous support and the well established homogeneous catalyst moiety [Cp*IrCl] + (where Cp* = η 5 -C 5 Me 5 ), commonly used for catalytic hydrogenation. Coordination of [Cp*IrCl] + to g-C 3 N 4 occurs directly at exposed edge sites with a κ 2 N, N' binding motif, leading to a primary inner coordination sphere analogous to known homogeneous complexes of the general class [Cp*IrCl(NN-κ 2 N, N' )] + (where N, N' = a bidentate nitrogen ligand). Hydrogenation of unsaturated substrates using the composite catalyst is selective for terminal alkenes, which is attributed to the restricted steric environment of the outer coordination sphere at the edge-sites of g-C 3 N 4 .

KW - carbon nitride

KW - functionalization of 2D materials

KW - hydrogenation

KW - iridium

KW - nitrogen ligands

UR - http://www.scopus.com/inward/record.url?scp=85083955667&partnerID=8YFLogxK

U2 - 10.1002/chem.201905749

DO - 10.1002/chem.201905749

M3 - Article

C2 - 32017277

SN - 0947-6539

JO - Chemistry : A European Journal

JF - Chemistry : A European Journal

ER -