Ozerov Research Group
Organometallics, Catalysis, Energy

Texas A&M University, Department of Chemistry
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Alkyne C-H Borylation Catalyst Aryl Halide Coupling Catalyst C-F Activation Catalyst First Bis(Methylene) Complex First Covalent Pd-Zn Bond Silylium Zwitterion

Principal Investigator

Dr. Oleg V. Ozerov

Oleg Ozerov with his award sculpture

 

Current Group Members

PhD. Students


Qingheng Lai

Qingheng received his B.S. from Nanjing University in 2013, where he focused on the self-assembly of diruthenium diphosphonate with lanthanide cations. He entered Texas A&M University in August 2014, and joined the Ozerov group in October of 2014.

Qingheng is currently finishing up the dehydrogenative alkyne diboration project. In addition, he is studying the synthesis and reactivity of pyrrole-based pincer (PAlP) or tripodal (AlP3) ligands and their transition metal complexes.

Photo of Bryan Foley

Bryan Foley

Bryan, a native of Pipestem, West Virginia, received his B.S. in Chemistry from Fairmont State University in December of 2014. While at Fairmont, Bryan performed undergraduate research under the direction of Dr. Andreas Baur using a high performance liquid chromatograph. During this time, Bryan also participated in two separate internships at Brookhaven National Laboratory. He arrived in Texas in May of 2015 after completion of his internship at Brookhaven and began working with the Ozerov Group as a summer researcher before matriculating into the graduate program at Texas A&M in fall 2015.

Bryan is currently working on PNP complexes of cobalt and their relevance to catalytic heteroatom bond formation. Another project that he has currently underway is the determination of the kinetics and mechanistic information of the (PNP)Ir catalyzed borylation of terminal alkynes. 

Bryan's Publications in the Ozerov Group

Zhang,U J.; Foley, B. J.; Bhuvanesh, N.; Zhou, J.; Janzen, D. E.; Whited, M. T.; Ozervo, O. V. " Synthesis and Reactivity of Pincer-Type Cobalt Silyl and Silylene Complexes", Organometallics 2018, 37, 3956-3962.

Foley, B. F.: Palit, C. M.; Timpa, S. D.: Ozerov, O. V. "Synthesis of (POCOP)Co(Ph)(X) Pincer Complexes and Observation of Aryl-Aryl Reductive Elimination Involving the Pincer Aryl." Organometallics 2018, 37, 3803-3812.

 

Cheng-Han (Andy) Yu

Cheng-Han Yu received his B.S. and M.S. from National Taiwan University in 2010 and 2012. His previous research was electropolymerization in liquid crystal medium and optoelectronic special organic compound synthesis. After one year of military service and two years working at NTU as teaching and research assistant, Andy arrived at Texas A&M in 2015. He joined the Ozerov group in October of the same year.

Andy is currently working on the synthesis and characterization of group 10 (PNP)MCCM(PNP) dimer and bis-pincer complexes as well as pursuing the polymerization method for general PNP pincer complexes.

 

Ming-Uei Hung

Ming-Uei Hung received his B.S. from National Taiwan University in 2013. His undergraduate research was focus on the di-Cu(I) complexes and their catalytic applications. After serving in the military, he worked at NTU as a research assistant for two years, investigating di-Pd(II) complex as pre-catalyst for the hydrogenation of nitro groups. Ming-Uei arrived at Texas A&M in the fall of 2016 and joined the Ozerov group in October of the same year.

Ming-Uei is currently working on the further development of catalytic C–H borylation, and the development of catalytic C–H/C–X germylation and its further application for preparing cross-coupling reagents.

Yihan Cao

Yihan Cao

Yihan received her B.S. from Nanjing University in Nanjing, China in 2016, where she focused on the synthesis and properties research of rotaxane and catenane based on urea group and pillar[5]arene. She arrived in College Station in the fall of 2016 and joined the Ozerov group in October of the same year.

Yihan is currently working on selective C-H activation directed by PBP type pincer ligand, especially the development of catalytic functionalization of C-H bond by (PBP)Ir and (PBP)Rh system.

Yihan's Publications in the Ozerov Group

Cao, Y.Shih, W-C.; Ozerov, O. V. "Addition of O-H, N-H and F-H Bonds across a Boryl-Iridium Unit", Organometallics ,2019, ASAP.

Cao, Y.; Shih, W-C.; Bhuvanesh, N.; Ozerov, O. V. "Silver Halide Complexes of a Borane/Bis(Phosphine) Ligand", Dalton Trans. 2019, accepted manuscript.

Olivia Gunther

S. Olivia Gunther

Olivia received her BS in Chemistry from Brandeis University in 2016. While there, she focused on synthesizing metal-organic frameworks (MOFs) for use in catalysis with the Wade group. Olivia arrived at Texas A&M in the fall of 2016 and joined the Ozerov group in October of the same year. In her free time Olivia enjoys going to shows and playing music.

Olivia is currently studying the reactivity of highly Lewis acidic cations stabilized by carborane anions towards fluorinated materials. She is also exploring alternative synthetic routes for the funtionalization of parent carborane anions, HCB11H11-. 

 

Yanwu Shao

Yanwu Shao


Yanwu received his B.S. in chemistry from University of California, Los Angeles in June of 2016. While there, in the laboratory group led by Prof. Alexander M. Spokoyny, he worked on the microwave-assisted synthesis of boron-rich clusters of the type [B12(OR)12] and then the study of boron-rich clusters based metal-organic frameworks (MOFs). He arrived in Texas A&M University in August of 2016 and joined the Ozerov group in October of the same year.

Yanwu is currently working on the synthesis and characterization of hetero-bimetallic pincers and also exploring their potential as building block of metallopolymer.

Mario Cosio

Mario Cosio


Mario, a native of Corpus Christi, Texas, received his B.S. in Chemistry from Texas A&M University in May of 2017. As an undergraduate, Mario performed research under the direction of Dr. Hong-Cai Zhou studying metal-organic frameworks and their use for carbon capture. During this time, Mario also participated in an internship at Proctor and Gamble. He began his graduate studies at TAMU in August of 2017 and began working with the Ozerov Group in October of that year.

Mario is studying pyrrole-based pincers and propensity for certain complexes of these pincers to form dimeric systems. In addition, he is exploring the activation of sulfur hexafluoride and its potential uses in functionalization of various substrates and well as the development of novel, pincer-based 2D and 3D materials.

 Derek Leong

Derek Leong

Derek received his B.S. in chemistry from Truman State University in 2018. His undergraduate research was focused on the synthesis of atmospherically relevant sulfate esters to better understand their effect on global warming or cooling. While at Truman he also had two different summer research projects, one that focused on synthesizing and testing biologically active crown ether compounds, and the other on synthesizing a novel poly[n]catenane architecture. Derek joined the Ozerov Group in October of 2018.

Derek is currently working on alkylative defluorination with alkyl magnesium cations as well as working on finishing a project with (PNP)Pd cations.

 

 Brandy

Brandy Adolph

Brandy received her B.S. in chemistry at Southeastern Louisiana University in May of 2018. While at Southeastern, she focused on hydrosilylation of aldehydes and ketones using a nano-dispersed Pt(0) in organically modified silicates as a catalyst. Brandy and her dog, Ethyl, arrived at College Station in June 2018 to join the Ozerov group in the summer and joined the Ozerov group at Texas A&M in the fall of 2018.

Brandy is working on a new synthesis route to PBP-Metal complexes with phenyl- and pyrrole-based phosphines. Another project she is working on is forming tripodal ligands with a group 13 lewis acid center as a Z-type coordination site

Vinh Nguyen

Vinh Nguyen

Vinh received his B.S. in biochemistry from UCLA in 2015. While there, he performed research on carborane-metal complexes and their phosphorescent properties. Prior to arriving at Texas A&M in 2018, Vinh worked as an analytical chemist at Catalent Pharma Solutions in San Diego.

Vinh is currently researching the mechanism, kinetics, and late-stage pharmaceutical applications of heteroaromatic C-H activation using PBP ligands as regioselective directing groups.

 

Sam Lee

Sam received his B.S. from North Central College in June of 2019. At North Central, Sam worked primarily on developing a catalytic C-N coupling methodology for the synthesis of benzylic oximes and nitriles under the guidance of Dr. Nick Boaz. Under supervision of Dr. David Horner, Sam also worked towards elucidating the mechanism for these transformations using DFT calculations. Sam arrived at Texas A&M in the fall of 2019 and joined the Ozerov group in October of the same year. Sam is raising a cat, Duck, with his girlfriend.


Sam is currently developing pyrrole-based PBP-metal complexes to study their potential as catalysts for C-H activation of heteroaryl systems.

 

 

 

Undergraduate Students

 Patricio

Patricio Castillo

Patricio is a current undergraduate Chemistry major at Texas A&M University, planning to receive his B.S. in the Fall of 2020. He joined the Ozerov group in May of 2018 as a summer researcher, and is currently working with forming osmium complexes.

Patricio is working with various metal pincer complexes. The main metals he is working with are osmium and ruthenium. Patricio test the metal complexes created in various catalysis tests, with a focus on DHBTA and arene borylation.

Visiting Scholars

 Ashley

Ashley Braaksma

Ashley will be a senior this fall at Rose-Hulman Institure of Technology in Terre Haute, IN. She is currently pursuing a dual major in Chemistry and Chemical Engineering. As an REU student she is workng with Mario Cosio.

Ashley is working to synthesize a poly pincer core centered around silicon. The ultimate goal is to link these poly pincer cores together to form a network.

Recent Graduates


Photo of Alex Kosanovich

Alex Kosanovich

Alex received his B.A. in chemistry from Carleton College in Northfield, MN in June of 2014. While there, he conducted research under Assistant Professor Matthew T. Whited, developing and studying the synthesis, characterization, and insertion reactivity of bis-phosphine-supported rhodium silylamides, and their ability to deoxygenate CO, CO2, and various other heteroallenes at room temperature. Alex arrived in College Station in July 2014, and joined the Ozerov group later that year as an NSF LSAMP BTD graduate fellow. His current research revolves around the synthesis of novel rhenium complexes in a pincer ligand context, and their applications in catalytic transformations of interest. 

Alex successfully defended his thesis, in February 2019 and accepted a position with Dow in Lake Jackson, Texas.

Alex's Publications in the Ozerov Group

Kosanovich, A. J.; Shih, W-C.; Ozerov, O. V. "Synthesis and characterization of unsaturated Manganese(I) and Rhenium(I) dicarbonyl complexes supported by an anionic PNP pincer", J. Organomet. Chem. 2019, 897, 1-6.

Kosanovich, A. J.; Jordan,U A. M.; Bhuvanesh, N.; Ozerov, O. V. "Synthesis and Characterization of Rhodium, Irtidium and Palladium complexes of a Dairylamido-based PNSb Pincer Ligand", Dalton Trans. 2018, 47, 11619-11624.

Kosanovich, A. J.; Komatsu, C. H.; Bhuvanesh, N.; Pérez, L. M.; Ozerov, O. V. "Dearomatization of the PCP Pincer Ligand in a Re(V) Oxo Complex", Chem Eur J. 2018, 24, 13754-13757.

Kosanovich, A. J.; Shih, W.-C.; Ozerov, O. V. "Irreversible Hydrolysis of PCP-Supported Rhenium(V) Acetates", Inorg. Chem, 2018, 57, 545-547.

Zabula, A .V.; Qiao, Y.; Kosanovich, A. J.; Cheisson, T.; Manor, B. C.; Carroll, P. J.: Ozerov, O. V.; Schelter, E.J. "Structure, Electronics, and Reactivity of Ce (PNP) Complexes", Chem. Eur. J . 2017, 23, 19723-17934.

Kosanovich, A. J.; Press, L. P.; Ozerov, O. V. "Boryl Transfer Reactivity of a POCOP-Supported Ir-diboryl: Reduction of CO2 to CO and Borylation of Other Small Molecules", J. Organomet. Chem. 2017, 23,19-24.

Kosanovich, A. J.; Shih, W.-C.; Ramírez-Contreras, R.; Ozerov, O. V. ".N-H Cleavage as a Route to New Pincer Complexes of High-Valent Rhenium", Dalton Trans. 2016, 45, 18532-18540.

Press, L. P.; Kosanovich, A. J.; McCulloch, B. J.; Ozerov, O. V. "High-Turnover Aromatic C-H Borylation Catalyzed by POCOP-type Pincer Complexes of Iridium", J. Am. Chem. Soc. 2016, 138, 9487-9497.

Kosanovich, A. J.; Reibenspies, J. H.; Ozerov, O. V. "Complexes of High-Valent Rhenium Supported by the PCP Pincer", Organometallics 2016, 35, 513-519.

 

 

 


Photo of Chris Pell

Chris Pell

Chris spent the summer of 2011 with the Ozerov group as a participant in the NSF REU program where he studied the kinetics of C-N reductive elimination from (POCOP)Rh complexes. After Chris received his B.S. in Chemistry from the State University of New York at Plattsburgh in 2012, he rejoined the Ozerov group in August 2012 as a graduate student at Texas A&M University. Since then he has studied (POCOP)Rh complexes as catalysts for C-S coupling and alkyne dimerization. He has also investigated palladium and iridium pincer complexes as catalysts for the dehydrogenative borylation of terminal alkynes. Outside of the lab, Chris enjoys travelling around Texas, finding new restaurants, and exploring new and diverse music.  

Chris defended his thesis in July 2017 and has taken a job with Intel in Portland, Oregon.   

Chris's Publications in the Ozerov Group:

Pell, C. J.; Shih, W. -C.; Gatard,P S.; Ozerov, O. V. "Formation of (PNP) Rh complexes containing covalent rhodium-zinc bonds in studies of potential Rh-catalysed Negishi coupling", Chem. Commun. 2017, 53, 6456-6459.

Pell, C. J.; Zhu, Y.; Huacuja, R.; Herbert,P D. E.; Hughes, R.; Ozerov, O. V."Fluorocarbene, Fluoroolefin, and Fluorocarbyne Complexes of Rh", Chem. Sci. 2017, 8, 3178-3186.

Lee, C -I; DeMott, J. C.; Pell, C. J.; Christopher, A.; Zhou,P. J.; Bhuvanesh, N.; Ozerov, O. V. "Ligand Survey Results in Identification of PNP Pincer Complexes of Iridium as Long-lived and Chemoselective Catalysts for Dehydrogenative Borylation of Terminal Alkynes", Chem. Sci. 2015, 6, 6572-6582.

Pell, C. J.; Ozerov, O. V. "Catalytic Dehydrogenative Borylation of Terminal Alkynes by POCOP-Supported Palladium Complexes", Inorg. Chem. Front. 2015, 2, 720-724.

Timpa, S. D.; Pell, C. J.; Ozerov, O. V. "A Well-Defined (POCOP)Rh Catalyst for the Coupling of Aryl Halides with Thiols", J. Am. Chem. Soc. 2014, 36, 14772-14779.

Timpa, S. D.; Pell, C. J.; Zhou, J.; Ozerov, O. V. "Fate of Aryl/Amido Complexes of Rh(III) Supported by a POCOP Pincer Ligand: C-N Reductive Elimination, beta-Hydrogen Elimination, and Relevance to Catalysis", Organometallics 2014, 33, 5254-5262.

Pell, C. J.; Ozerov, O. V. "A Series of Pincer-Ligated Rhodium Complexes as Catalysts for the Dimerization of Terminal Alkynes", ACS Catal. 2014, 4, 3470-3480.

 

Administrative Staff

 photo of Ruth Ann Gholson

Ruth Ann Gholson

Ruth Ann joined the Ozerov group as an administrative assistant in June 2016. She came from New Orleans, where she was an executive secretary for the U. S. Department of Agriculture. She graduated with a B.S. in Urban Planning and Studies from the University of New Orleans in Louisiana in 2011, after retiring from the U. S. Marine Corps. In her spare time she can be found with her children and grandchildren.
 

 

Former Group Members

 

Dr. Oleg Ozerov
Department of Chemistry
Texas A&M University
P.O. Box 30012
College Station, Texas 77842-3012
PHONE: 979-845-5870 | EMAIL: ozerov@chem.tamu.edu

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