Patents by Inventor Charles Edwin Webster

Charles Edwin Webster has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11618745
    Abstract: 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.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: April 4, 2023
    Assignee: Mississippi State University
    Inventors: Thedford Keith Hollis, Charles Edwin Webster
  • Patent number: 11084839
    Abstract: 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, CH2TMS. The symmetrical bimetallic complex includes a structure according to Formula II: 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 wherein each R is independently an alkyl, Nx, CH2TMS. Also provided herein is a method of catalyzing a reaction including administering one or more of the compounds disclosed herein.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: August 10, 2021
    Assignees: Mississippi State University, University of Mississippi
    Inventors: Thedford Keith Hollis, Charles Edwin Webster, Jared H. Delcamp
  • Publication number: 20210179588
    Abstract: 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.
    Type: Application
    Filed: February 22, 2021
    Publication date: June 17, 2021
    Inventors: Thedford Keith Hollis, Charles Edwin Webster
  • Patent number: 10927099
    Abstract: 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.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: February 23, 2021
    Assignee: Mississippi State University
    Inventors: Thedford Keith Hollis, Charles Edwin Webster
  • Publication number: 20200095228
    Abstract: 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.
    Type: Application
    Filed: March 21, 2018
    Publication date: March 26, 2020
    Inventors: Thedford Keith Hollis, Charles Edwin Webster
  • Publication number: 20190016741
    Abstract: 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, CH2TMS. The symmetrical bimetallic complex includes a structure according to Formula II: 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 wherein each R is independently an alkyl, Nx, CH2TMS. Also provided herein is a method of catalyzing a reaction including administering one or more of the compounds disclosed herein.
    Type: Application
    Filed: July 16, 2018
    Publication date: January 17, 2019
    Inventors: Thedford Keith Hollis, Charles Edwin Webster, Jared H. Delcamp