Mississippi State University

The University of Mississippi

Charles Edwin Webster

Thedford Keith Hollis

Jared Heath Delcamp

Provided herein are unsymmetrical bis(azolium) salts, unsymmetrical CCC-NHC metal complexes, and methods of forming the same. The unsymmetrical bis(azolium) salts include a central aryl ring that is substituted with two heterocyclic rings in an ortho, meta, or para fashion. The unsymmetrical CCC-NHC metal complexes include metalated unsymmetrical bis(azolium) salts. The method of forming the unsymmetrical CCC-NHC metal complexes includes reacting a dihalogenated benzene with a first azole to form a mono(azole)benzene, reacting the mono(azole)benzene with a second azole to form an unsymmetrical bis(azole)benzene, alkylating the unsymmetrical bis(azole)benzene to form an unsymmetrical bis(azolium) salt, and metalating the unsymmetrical bis(azolium) salt to form the unsymmetrical CCC-NHC metal complex. Also provided are a bis-ligated CCC-NHC metal complex and an unsymmetrical bimetallic complex.

Unsymmeirical salts, CCC-NHC pincer metal complexes, and methods of making the same

Provided herein are a symmetrical pincer metal and bimetallic complexes. The symmetrical pincer metal complex includes a structure according to Formula I: wherein M is a metal; each N and N' is independently nitrogen or carbon; Z is selected from the group consisting of CH, C, and N; n is 0-3; each L is independently a neutral or charged ligand; and each R is independently an alkyl, Nx, CHTMS. The symmetrical bimetallic complex includes a structure according to Formula II: wherein M is a metal; each N and N&#x2032; is independently nitrogen or carbon; Z is selected from the group consisting of CH, C, and N; n is 0-3; each L is independently a neutral or charged ligand; and wherein each R is independently an alkyl, Nx, CHTMS. Also provided herein is a method of catalyzing a reaction including administering one or more of the compounds disclosed herein.

Symmetrical CCC-NHC pincer metal complexes and symmetrical bimetallic complexes: bio-activity, and applications to organic transformations and energy-related catalytic methods

Growing community of inventors

Starkville, MS, United States of America

Charles Edwin Webster