.: Current Group :.

Manuel Quiroz
Manuel Quiroz
5th Year Ph.D. Candidate
About Manuel

Manuel is a synthetic inorganic chemist whose research interests focus on the development of heterobimetallic systems that emulate features of metalloenzymes such as [NiFe] and [FeFe] hydrogenases. He is also interested in understanding the electronic delocalization of multi-metal nitrosyl complexes, such as a Fe2(NO)3 motif developed in our lab which has been shown to exist at several redox levels.

Manuel's Publications

  • Linear and Bent Nitric Oxide Ligand Binding in an Asymmetric Butterfly Complex: CoMoCo′
    Paulina Guerrero-Almaraz, Manuel Quiroz, Joseph H. Reibenspies, Marcetta Y. Darensbourg
    Inorg. Chem. 2021, DOI: 10.1021/acs.inorgchem.1c00987

  • Structural and Electronic Responses to the Three Redox Levels of Fe(NO)N2S2-Fe(NO)2.
    Pokhraj Ghosh, Shengda Ding, Manuel Quiroz, Nattamai Bhuvanesh, Chung-Hung Hsieh, Philip M. Palacios, Brad S. Pierce, Marcetta Y. Darensbourg, Michael B. Hall.
    Chem. Eur. J.
    2018, 24, 16003.

  • *Bridging cyanides from cyanoiron metalloligands to redox-active dinitrosyl iron units.
    Pokhraj Ghosh, Manuel Quiroz, Randara Pulukkody, Nattamai Bhuvanesha, Marcetta Y. Darensbourg.
    Dalton Trans.
    2018, 47, 11812 - 11819.

  • *A Matrix of Heterobimetallic Complexes for Interrogation of Hydrogen Evolution Reaction Electrocatalysts.
    Pokhraj Ghosh, Shengda Ding, Rachel B. Chupik, Manuel Quiroz, Chung-Hung Hsieh, Nattami Bhuvanesh, Michael B. Hall, and Marcetta Y. Darensbourg.
    Chem. Sci. 2017, 8, 8291-8300.

  • *Complexes of MN2S2•Fe(η5-C5R5)(CO) as Platform for Exploring Cooperative Heterobimetallic Effects in HER Electrocatalysis.
    Pokhraj Ghosh; Manuel Quiroz, Ning Wang, Nattamai Bhuvanesh, Marcetta Y. Darensbourg,
    Dalton Trans.
    2017, 46, 5617 - 5624.

    (* Undergraduate work in MYD lab)

  • Zachary Martinez
    Zachary Martinez
    5th Year Ph.D. Candidate
    About Zachary

    Zachary's research focuses on contructing biomimcs of metalloenzymes such as Acetyl CoA Synthase, Cu,Mo-CODHase and Lactate Racemase A. By incorporating various N2S2 metalloligand motifs, he hopes to develop functional models to preform desirable chemistry. He work also includes the development of the metal-N2S2 complexes as metalloligands for organometallic catalysis, such as cross-coupling chemistry, with the aim of leveraging the hemilability of our thiolate based metalloligands.

    Zachary's Publications

  • Kinetic and Computational Analysis of CO Substitution in a Dinuclear Osmium Carbonyl Complex: Intersections between Dissociative and Dissociative-Interchange Mechanisms.
    Zachary M. Martinez, Tucker M. Folsom, Yicheng Tong, Ashley K. Archambeau, Donald J. Darensbourg, Michael B. Hall, Cynthia B. Powell, and Gregory L. Powell
    Inorg. Chem. 2022, 61, 1, 246-253

  • *Cyanide Docking and Linkage Isomerism in Models for the Artificial [FeFe]-Hydrogenase Maturation Process.
    Debangsu Sil, Zachary Martinez, Shengda Ding, Nattamai Bhuvanesh, Donald J. Darensbourg, Michael B. Hall, Marcetta Y. Darensbourg.
    J. Am. Chem. Soc.
    2018, 140 (31), 9904–9911.

  • *Discrete Air-Stable Nickel-Palladium(II) Complexes as Catalysts for Suzuki-Miyaura Reactions.
    Tiankun Zhao; Pokhraj Ghosh; Zachary Martinez; Xufeng Liu; Xianggao Meng; Marcetta Y. Darensbourg.
    Organometallics, 2017, 36, 1822–1827.

    (* Undergraduate work in MYD lab)

  • Paulina Guerrero
    Paulina Guerrero
    5th Year Ph.D. Candidate
    About Paulina

    Paulina's research interests focus on utilizing our M-N2S2 metallodithiolate complexes (M = Ni, Fe, Co) as metalloligands to bind silver ions or metal nitrosyl units. By tuning the ligand backbone and studying the binding affinity and release profiles of these potential therapeutics, she hopes to inform the design of better drug delivery vehicles.

    Paulina's Publications

  • Linear and Bent Nitric Oxide Ligand Binding in an Asymmetric Butterfly Complex: CoMoCo′
    Paulina Guerrero-Almaraz, Manuel Quiroz, Joseph H. Reibenspies, Marcetta Y. Darensbourg
    Inorg. Chem. 2021, DOI: 10.1021/acs.inorgchem.1c00987

  • Trung Le
    Trung Le
    5th Year Ph.D. Candidate
    About Trung

    Trung's research focuses on his recent discovery of a novel, highly stable dimanganese hexacarbonyl species templated by our metal-N2S2 compounds. Investigations into the ligand exchange behavior and reactivity in Mn relavant chemistry are currently underway.

    Trung's Publications

  • Metal-Templated, Tight Loop Conformation of Cys-X-Cys Biomimetic Assembles a Dimanganese Complex.
    Trung Le, Hao Nguyen, Lisa M. Perez, Donald J. Darensbourg, Marcetta Y. Darensbourg.
    Angew. Chem.,

  • Controlling O2 Reactivity in Synthetic Analogues of [NiFeS]- and [NiFeSe]-Hydrogenase Active Sites.
    Xuemei Yang, Lindy C. Elrod, Trung Le, Valeria S. Vega, Haley Naumann, Yohannes Rezenom, Joseph H. Reibenspies, Michael B. Hall, Marcetta Y. Darensbourg.
    J. Am. Chem. Soc.
    2019, 141, 15338-15347.

  • Trung Le
    Kyle T. Burns
    4th Year Ph.D. Candidate
    About Kyle

    Kyle is a physical inorganic chemist interested in the electrochemical production of hydrogen using bioinspired molecular catalysts. Through use of physical and electroanalytical methods to study the mechanism of the hydrogen evolution reaction (HER), and its inhibition by small molecules such as O2, Kyle hopes to tune the stability and tolerance of these molecular catalysts.

    Kyle's Publications

  • Self-Assembled Nickel-4 Supramolecular Squares and Assays for HER Electrocatalysts Derived Therefrom
    X. Yang, C. R. Delaney, K. T. Burns, L. C. Elrod, W. Mo, H. Naumann, N. Bhuvanesh, M. B. Hall, M. Y. Darensbourg
    Inorg. Chem. 2021, 60, 10, 15338-15347.

  • ** Hemilabile Proton Relays and Redox Activity Lead to {FeNO}x and Significant Rate Enhancements in NO2- Reduction.
    Pui Man Cheung, Kyle T. Burns, Yubin M. Kwon, Megan Y. Deshaye, Kristopher J. Aguayo, Victoria F. Oswald, Takele Seda, Lev N. Zakharov, Tim Kowalczyk, John D. Gilbertson.
    J. Am. Chem. Soc.
    2018, 140(49), 17040-17050.

  • ** Uncoupled Redox-Inactive Lewis Acids in the Secondary Coordination Sphere Entice Ligand-Based Nitrite Reduction.
    Kyle T. Burns, Walker R. Marks, Pui Man Cheung, Takele Seda, Lev N. Zakharov, John D. Gilbertson.
    Inorg. Chem.
    2018, 57, 9601-9610.

    (** work prior to joining MYD)

  • .: Former Group Members :.

    Member Current Position/Employer
    Christopher DeLaney, Ph.D. 2021 Postdoctoral Researcher, Los Alamos National Lab
    Lindy C. Elrod, Ph.D. 2021 Upper School Chemistry Teacher, The John Cooper School
    D. Chase Pectol, Ph.D. 2021 Medical Writer, Springer Nature Group
    K. Dilshan Kariyawasam Pathirana, Ph.D. 2021 Scientist, Intel Corporation
    Xuemei Yang, Ph.D. 2020 Postdoctoral Researcher, EPFL
    Pokhraj Ghosh, Ph.D. 2017 Postdoctoral Researcher, Georgetown University
    Rachel B. Chupik, Ph.D. 2017 Visiting Instructor, Trinity University
    Shengda Ding, Ph.D. 2017 Seismic Analyst, CGG
    Allen M. Lunsford, Ph.D. 2016 Scientist, Intel Corporation
    Jason Denny, Ph.D. 2015 Postdoctoral Researcher, Mississippi State University
    Danielle Crouthers, Ph.D. 2015 Catalyst Development Research Scientist, Inaeris Technologies
    Randara Pulukkody, Ph.D. 2015 Senior Research & Development Chemist, Dow Chemical Company
    Ryan Bethel, Ph.D. 2014 Lecturer, Texas A&M University, College Station, TX
    Tiffany Pinder, Ph.D. 2013 Senior Chemist, Halliburton, Houston, TX
    Scott Brothers, Ph.D. 2011 Assistant Professor of Chemistry, Bethany College
    Jennifer Hess Young, Ph.D. 2011 Assistant Professor, Azusa Pacific University
    Michael L. Singleton, Ph.D. 2010 Assistant Professor, Université catholique de Louvain
    Roxanne Jenkins, Ph.D. 2010 Associate Research Scientist, Dow Chemical Company
    Tianbiao Liu, Ph.D. 2009 Inorganic Assistant Professor, Utah State University
    Elky Almaraz, Ph.D. 2008 Attorney, San Antonio, TX
    Kayla N. Green, Ph.D. 2007 Assistant Professor, Texas Christian University
    Jesse W. Tye, Ph.D. 2006 Associate Professor, Ball State University
    Stephen P. Jeffery, Ph.D. 2006 Production Manager, Umicore Precious Metals Chemistry
    Marilyn Rampersad Mackiewicz, Ph.D. 2005 Research Assistant Professor, Portland State University
    Chao-Yi Chiang, Ph.D. 2005 Assistant Professor, Providence University, Taiwan
    Melissa L. Golden, Ph.D. 2004 Associate Professor, Fresno State University
    Rosario Mejia Rodriguez, Ph.D. 2004 Professor, Universidad Autonoma de Queretaro, Mexico
    Matthew L. Miller, Ph.D. 2003 Principal Scientist, Newpark Drilling Fluids, The Woodlands, TX
    Irene P. Georgakaki, Ph.D. 2002 Government Laboratory, Greece
    Xuan Zhao, Ph.D. 2002 Associate Professor, University of Memphis
    Erica J. Lyon, Ph.D. 2000 Assistant Professor, Bellarmine University
    Jason J. Smee, Ph.D. 2000 Associate Professor, University of Texas at Tyler
    John A. Bellefeuille, Ph.D. 1999 Associate Professor, Central Methodist University
    Chia-Huei Lai, Ph.D. 1998 Homemaker
    Craig A. Grapperhaus, Ph.D. 1998 Professor, University of Louisville
    Ghezai Musie, Ph.D. 1997 Associate Professor, University of Texas-San Antonio
    Rizalia Buonomo Klausmeyer, Ph.D. 1996 Associate Director of the Office of Prehealth Studies, Lecturer, Baylor University
    Dawn Goodman Mason, Ph.D. 1996 Eastman Chemical, Tennessee
    Jeng Sub Kim, Ph.D. 1996 Industrial Chemist, Korea
    Thawatchai Tuntulani, Ph.D. 1995 Professor, Chulalongkorn University, Bangkok
    Ivan Font, Ph.D. 1994 Merck Pharmaceuticals, Puerto Rico
    Steve Chojnacki, Ph.D. 1993 Author and Chemistry Educator
    Sheryl Wander, Ph.D. 1993 National Renewable Energy Laboratory
    Yui May Hsaio, Ph.D. 1993 I.E. Dupont Corporation, Taipei, Taiwan
    Patrick Farmer, Ph.D. 1993 Professor and Chair - Department of Chem. and Biochem., Baylor University, Waco, TX
    Daniel Mills, Ph.D. 1991 Industrial Chemist, Ohio
    Stephen Houliston, Ph.D. 1991 Industrial Chemist, Minnesota
    Chris Janzen, Ph.D. 1991 Dean, Faculty of Technology and Trades, Algonquin College
    Charles Riordan, Ph.D. 1990 Professor, University of Delaware
    Jerry Springs, Ph.D. 1989 Kior, Houston, Texas
    Wen Feng Liaw, Ph.D. 1989 Professor, National Tsing Hua University, Taiwan
    Kay (Youngdahl) Blohowiak, Ph.D. 1987 Technical Fellow, The Boeing Company
    Maria Ludvig, Ph.D. 1987 Albemarle Corporation, Houston, Texas
    Carlton Ash, Ph.D. 1987 Shell Corporation
    Yong Kwang Park, Ph.D. 1986 Professor, Kangwon National University, Korea
    Patricia Tooley, Ph.D. 1986 Dupont Inc., Delaware
    Larry Arndt, Ph.D. 1986 Industrial Chemist, Illinois
    John Michael Hanckel, Ph.D. 1984 BASF Corporation, Charleston, SC
    Haroldo Barros, Ph.D. 1980  

    Please forward any corrections/updates to: darensbourg_asst@chem.tamu.edu

    Chemistry Department -- Texas A&M University -- 3255 TAMU, College Station, TX 77843 -- 979.845.5417