Patent ID: 8455661

Claim:
A monometallic bis-N-heterocyclic carbene complex, comprising a structure of Formula VIII: wherein n is 0 or 1; wherein R 5 is independently: wherein R 1 , groups are independently: H; C 1 to C 18 straight, branched, or multiply branched alkyl; benzyl; substituted benzyl; phenyl; substituted phenyl; naphthyl; substituted naphthyl; pyridyl; substituted pyridyl; quinolyl; substituted quinolyl; or pentafluorobenzyl, wherein the substituent is an alkyl, vinyl, alkenyl, alkynyl, or aryl group; wherein Z is Cl − , Br − , I − , PF 6 − , SbF 6 − , − OSO 2 CF 3 , − OSO 2 C 6 H 5 or − OSO 2 C 6 H 4 —R 4 where R 4 is an alkylene or oxyalkylene unit bridged with a polymer or polymeric resin; wherein M is Rh, Ir, Pd, Pt, Ru, or other transition metal; and wherein a second ligand, R 6 , is: norbornene; substituted norbornene; 1,5-cyclooctadiene; or substituted 1,5-cyclooctadiene, wherein the substituent is an alkyl, vinyl, alkenyl, alkynyl, or aryl group.