Connie C. Lu

Last updated
Connie C. Lu
盧之瑜
Born
Connie Chih Lu
Alma mater Massachusetts Institute of Technology B.S. (2000)
California Institute of Technology Ph.D. (2006)
Scientific career
Fields Inorganic chemistry, Organometallic chemistry, Catalysis
Institutions University of Minnesota (2009-present)
Max Planck Institute for Bioinorganic Chemistry (2006-2009)
Thesis The Chemistry of Tris(phosphino)borate Manganese and Iron Platforms  (2006)
Doctoral advisor Jonas C. Peters
Other academic advisors Karl Wieghardt
Website lu.chem.umn.edu

Connie C. Lu is a Taiwanese-American inorganic chemist and a professor of chemistry at the University of Minnesota, Twin Cities. [1] Lu's research focuses on the synthesis of novel bimetallic coordination complexes, [2] as well as metal-organic frameworks. These molecules and materials are investigated for the catalytic conversion of small molecules like as N2 and CO2 into value-added chemicals like ammonia and methanol. Lu is the recipient of multiple awards for her research, including the National Science Foundation CAREER Award [3] and the Sloan Research Fellowship [4] in 2013, and an Early Career Award from the University of Minnesota's Initiative for Renewable Energy and the Environment in 2010. [5]

Contents

Early life and education

Lu grew up in Miami, Florida, the daughter of immigrants from Taiwan. [6] She studied chemistry at the Massachusetts Institute of Technology, earning her B.S. in 2000. [1] As an undergraduate, she conducted research under Prof. Vernon Ingram on peptides that ameliorate amyloid beta neurotoxicity. [7]

She then went on to graduate studies at the California Institute of Technology, where she studied novel coordination chemistry and small molecule reactivity with Prof. Jonas C. Peters. Lu's doctoral work focused on the reactivity of zwitterionic palladium(II) complexes with CO, ethylene and amines, [8] [9] as well as tetrahedral manganese complexes [10] and reductive cleavage of CO2 with an iron(I) complex. [11] She earned her Ph.D. in 2006, with a thesis entitled The Chemistry of Tris(phosphino)borate Manganese and Iron Platforms. [12]

Lu conducted postdoctoral studies at the Max Planck Institute for Bioinorganic Chemistry from 2006 to 2009, under the mentorship of Prof. Karl Wieghardt. Under Wieghardt, Lu studied first-row transition metal complexes synthesized with redox non-innocent α-iminopyridine ligands. [13] [14] [15] Lu also reported the synthesis and characterization of a chromium iminyl radical complex, using the α-iminopyridine ligand system. [16]

Independent career

A heterobimetallic coordination complex prepared by Lu and coworkers, bearing a quintuple metal-metal bond, with Mn-Cr bond distance of 1.8192(9) A. Manganese-Chromium Quintuple Bond Crystal Structure.png
A heterobimetallic coordination complex prepared by Lu and coworkers, bearing a quintuple metal-metal bond, with Mn-Cr bond distance of 1.8192(9) Å.

In 2009, Lu began her independent career at the University of Minnesota, Twin Cities as an assistant professor in the department of chemistry. [18] She was promoted to associate professor with tenure in 2015, and full professor in 2020. [18]

Her research focuses on the synthesis and characterization of bimetallic complexes, especially those that contain a metal-metal bond. The Lu group has developed a series of trianionic, tripodal ligands that can coordinate two metals at close proximity, allowing for the formation for a metal-metal bond in a coordination complex. [2] The metal-metal bond order can range from bond orders of less than one to a quintuple bond, as between manganese and chromium in a complex reported in 2013, [17] and between two chromium atoms in a complex reported in 2015. [19]

These coordination complexes are also active for catalytic reactions of small molecules, such as the silylation of nitrogen by a dicobalt complex, [20] and alkene hydrogenation by nickel-group 13 element complexes. [21]

Awards

Lu was named an Outstanding Reviewer of the journal Chemical Society Reviews in 2018 [22] and 2019, [23] featured in a 2018 JACS Young Investigators Virtual Issue, [24] and named a Kavli Frontiers of Science Fellow in 2013. [25] She has been honored with invited speaking engagements, as she gave a plenary lecture at a Royal Society of Chemistry Dalton Conference in 2018, [26] and the Association for Cultural Diversity in Chemistry Lecture at the University of Pennsylvania in 2016. [27] In 2017, Lu was invited to be a speaker at the Indo-US Workshop on Organometallic Chemistry [28] and a Inorganic Chemistry Young Outstanding Upcoming speaker at Symposium on Advanced Biological Inorganic Chemistry in Kolkata, India. [29]

Memberships

Lu is a member of the American Chemical Society and the Royal Chemical Society, [18] and has served on the editorial advisory board of Chemical Society Reviews since 2016. [30] She also served on the Inorganic Chemistry editorial advisory board from 2016 to 2018. [18]

Related Research Articles

<span class="mw-page-title-main">Chromium hexacarbonyl</span> Chemical compound

Chromium hexacarbonyl (IUPAC name: hexacarbonylchromium) is a chromium(0) organometallic compound with the formula Cr(CO)6. It is homoleptic complex, which means that all the ligands are identical. It is a white, air-stable solid with a high vapor pressure.

<span class="mw-page-title-main">Robert H. Crabtree</span> British-American chemist

Robert Howard Crabtree is a British-American chemist. He is serving as Conkey P. Whitehead Professor Emeritus of Chemistry at Yale University in the United States. He is a naturalized citizen of the United States. Crabtree is particularly known for his work on "Crabtree's catalyst" for hydrogenations, and his textbook on organometallic chemistry.

In chemistry, a (redox) non-innocent ligand is a ligand in a metal complex where the oxidation state is not clear. Typically, complexes containing non-innocent ligands are redox active at mild potentials. The concept assumes that redox reactions in metal complexes are either metal or ligand localized, which is a simplification, albeit a useful one.

<span class="mw-page-title-main">Liebeskind–Srogl coupling</span>

The Liebeskind–Srogl coupling reaction is an organic reaction forming a new carbon–carbon bond from a thioester and a boronic acid using a metal catalyst. It is a cross-coupling reaction. This reaction was invented by and named after Jiri Srogl from the Academy of Sciences, Czech Republic, and Lanny S. Liebeskind from Emory University, Atlanta, Georgia, USA. There are three generations of this reaction, with the first generation shown below. The original transformation used catalytic Pd(0), TFP = tris(2-furyl)phosphine as an additional ligand and stoichiometric CuTC = copper(I) thiophene-2-carboxylate as a co-metal catalyst. The overall reaction scheme is shown below.

Transition metal carbyne complexes are organometallic compounds with a triple bond between carbon and the transition metal. This triple bond consists of a σ-bond and two π-bonds. The HOMO of the carbyne ligand interacts with the LUMO of the metal to create the σ-bond. The two π-bonds are formed when the two HOMO orbitals of the metal back-donate to the LUMO of the carbyne. They are also called metal alkylidynes—the carbon is a carbyne ligand. Such compounds are useful in organic synthesis of alkynes and nitriles. They have been the focus on much fundamental research.

Gregory S. Girolami is the William H. and Janet G. Lycan Professor of Chemistry at the University of Illinois at Urbana-Champaign. His research focuses on the synthesis, properties, and reactivity of new inorganic, organometallic, and solid state species. Girolami has been elected a fellow of the American Association for the Advancement of Science, the Royal Society of Chemistry, and the American Chemical Society.

<span class="mw-page-title-main">Organotantalum chemistry</span> Chemistry of compounds containing a carbon-to-tantalum bond

Organotantalum chemistry is the chemistry of chemical compounds containing a carbon-to-tantalum chemical bond. A wide variety of compound have been reported, initially with cyclopentadienyl and CO ligands. Oxidation states vary from Ta(V) to Ta(-I).

In chemistry, compounds of palladium(III) feature the noble metal palladium in the unusual +3 oxidation state (in most of its compounds, palladium has the oxidation state II). Compounds of Pd(III) occur in mononuclear and dinuclear forms. Palladium(III) is most often invoked, not observed in mechanistic organometallic chemistry.

Cobalt(II)–porphyrin catalysis is a process in which a Co(II) porphyrin complex acts as a catalyst, inducing and accelerating a chemical reaction.

The Mukaiyama hydration is an organic reaction involving formal addition of an equivalent of water across an olefin by the action of catalytic bis(acetylacetonato)cobalt(II) complex, phenylsilane and atmospheric oxygen to produce an alcohol with Markovnikov selectivity.

<span class="mw-page-title-main">Phosphenium</span> Divalent cations of phosphorus

Phosphenium ions, not to be confused with phosphonium or phosphirenium, are divalent cations of phosphorus of the form [PR2]+. Phosphenium ions have long been proposed as reaction intermediates.

Karl Wieghardt is a German inorganic chemist and emeritus director of the Max Planck Institute for Chemical Energy Conversion in Mülheim. He was active in the preparation and detailed characterization of models for iron and manganese metalloenzymes, metal complexes of noninnocent ligands, and magnetic interactions in polynuclear metal complexes.

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<span class="mw-page-title-main">Nontrigonal pnictogen compounds</span>

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Julia A. Kovacs is an American chemist specializing in bioinorganic chemistry. She is professor of chemistry at the University of Washington. Her research involves synthesizing small-molecule mimics of the active sites of metalloproteins, in order to investigate how cysteinates influence the function of non-heme iron enzymes, and the mechanism of the oxygen-evolving complex (OEC).

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Karsten Meyer is a German inorganic chemist and Chair of Inorganic and General Chemistry at the Friedrich-Alexander University of Erlangen-Nürnberg (FAU). His research involves the coordination chemistry of transition metals as well as uranium coordination chemistry, small molecule activation with these coordination complexes, and the synthesis of new chelating ligands. He is the 2017 recipient of the Elhuyar-Goldschmidt Award of the Spanish Royal Society of Chemistry, the Ludwig-Mond Award of the Royal Society of Chemistry, and the L.A. Chugaev Commemorative Medal of the Russian Academy of Sciences, among other awards. He also serves as an Associate Editor of the journal Organometallics since 2014.

<span class="mw-page-title-main">Paula Diaconescu</span> Inorganic chemist

Paula L. Diaconescu is a Romanian-American chemistry professor at the University of California, Los Angeles. She is known for her research on the synthesis of redox active transition metal complexes, the synthesis of lanthanide complexes, metal-induced small molecule activation, and polymerization reactions. She is a fellow of the American Association for the Advancement of Science.

Suzanne Cathleen Bart an American chemist who is a professor of inorganic chemistry at Purdue University. Her group's research focuses on actinide organometallic chemistry, and especially the characterization of low-valent organouranium complexes, actinide complexes with redox-active ligands, and discovery of new reactions that utilize these compounds. Bart's research has applications in the development of carbon-neutral fuel sources and the remediation of polluted sites.

A molecular electron-reservoir complex is one of a class of redox-active systems which can store and transfer electrons stoichiometrically or catalytically without decomposition. The concept of electron-reservoir complexes was introduced by the work of French chemist, Didier Astruc. From Astruc's discoveries, a whole family of thermally stable, neutral, 19-electron iron(I) organometallic complexes were isolated and characterized, and found to have applications in redox catalysis and electrocatalysis. The following page is a reflection of the prototypal electron-reservoir complexes discovered by Didier Astruc.

References

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  2. 1 2 Eisenhart, Reed J.; Clouston, Laura J.; Lu, Connie C. (2015-10-22). "Configuring Bonds between First-Row Transition Metals". Accounts of Chemical Research. 48 (11): 2885–2894. doi:10.1021/acs.accounts.5b00336. ISSN   0001-4842. PMID   26492331.
  3. "NSF Award Search: Award # 1254621 - CAREER: Configuring New Bonds Between First-row Transition Metals". www.nsf.gov. Retrieved 2021-06-04.
  4. "Past Fellows | Alfred P. Sloan Foundation". sloan.org. Archived from the original on 2018-03-14. Retrieved 2021-06-07.
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  7. Blanchard, Barbara J.; Hiniker, Anne E.; Lu, Connie C.; Margolin, Yelena; Yu, Amy S.; Ingram, Vernon M. (2000-01-01). "Elimination of Amyloid β Neurotoxicity". Journal of Alzheimer's Disease. 2 (2): 137–149. doi:10.3233/JAD-2000-2214. ISSN   1387-2877. PMID   12214104.
  8. Lu, Connie C.; Peters, Jonas C. (2002). "Catalytic Copolymerization of CO and Ethylene with a Charge Neutral Palladium(II) Zwitterion". Journal of the American Chemical Society. 124 (19): 5272–5273. doi:10.1021/ja017011s. ISSN   0002-7863. PMID   11996560.
  9. Lu, Connie C.; Peters, Jonas C. (2004). "Synthetic, Structural, and Mechanistic Aspects of an Amine Activation Process Mediated at a Zwitterionic Pd(II) Center". Journal of the American Chemical Society. 126 (48): 15818–15832. doi:10.1021/ja046415s. ISSN   0002-7863. PMID   15571407.
  10. Lu, Connie C.; Peters, Jonas C. (2006). "Pseudotetrahedral Manganese Complexes Supported by the Anionic Tris(phosphino)borate Ligand [PhBPiPr3]". Inorganic Chemistry. 45 (21): 8597–8607. doi:10.1021/ic060735q. ISSN   0020-1669. PMC   2920598 . PMID   17029370.
  11. Lu, Connie C.; Saouma, Caroline T.; Day, Michael W.; Peters, Jonas C. (2006-12-16). "Fe(I)-Mediated Reductive Cleavage and Coupling of CO2: An FeII(μ-O,μ-CO)FeII Core". Journal of the American Chemical Society. 129 (1): 4–5. doi:10.1021/ja065524z. ISSN   0002-7863. PMC   2888261 . PMID   17199260.
  12. Lu, Connie Chih (2006). The Chemistry of Tris(phosphino)borate Manganese and Iron Platforms (Ph.D. thesis). California Institute of Technology.
  13. Lu, Connie C.; Bill, Eckhard; Weyhermüller, Thomas; Bothe, Eberhard; Wieghardt, Karl (2007-09-01). "The Monoanionic π-Radical Redox State of α-Iminoketones in Bis(ligand)metal Complexes of Nickel and Cobalt". Inorganic Chemistry. 46 (19): 7880–7889. doi:10.1021/ic7008094. ISSN   0020-1669. PMID   17715916.
  14. Lu, Connie C.; Bill, Eckhard; Weyhermüller, Thomas; Bothe, Eberhard; Wieghardt, Karl (2008). "Neutral Bis(α-iminopyridine)metal Complexes of the First-Row Transition Ions (Cr, Mn, Fe, Co, Ni, Zn) and Their Monocationic Analogues: Mixed Valency Involving a Redox Noninnocent Ligand System". Journal of the American Chemical Society. 130 (10): 3181–3197. doi:10.1021/ja710663n. ISSN   0002-7863. PMID   18284242.
  15. Lu, Connie C.; Weyhermüller, Thomas; Bill, Eckhard; Wieghardt, Karl (2009-05-28). "Accessing the Different Redox States of α-Iminopyridines within Cobalt Complexes". Inorganic Chemistry. 48 (13): 6055–6064. doi:10.1021/ic9004328. ISSN   0020-1669. PMID   20507103.
  16. Lu, Connie C.; DeBeer George, Serena; Weyhermüller, Thomas; Bill, Eckhard; Bothe, Eberhard; Wieghardt, Karl (2008). "An Electron-Transfer Series of High-Valent Chromium Complexes with Redox Non-Innocent, Non-Heme Ligands". Angewandte Chemie International Edition. 47 (34): 6384–6387. doi:10.1002/anie.200800669. ISSN   1521-3773. PMID   18618881.
  17. 1 2 Clouston, Laura J.; Siedschlag, Randall B.; Rudd, P. Alex; Planas, Nora; Hu, Shuxian; Miller, Adam D.; Gagliardi, Laura; Lu, Connie C. (2013-08-23). "Systematic Variation of Metal–Metal Bond Order in Metal–Chromium Complexes". Journal of the American Chemical Society. 135 (35): 13142–13148. doi:10.1021/ja406506m. ISSN   0002-7863. PMID   23901938.
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  20. Siedschlag, Randall B.; Bernales, Varinia; Vogiatzis, Konstantinos D.; Planas, Nora; Clouston, Laura J.; Bill, Eckhard; Gagliardi, Laura; Lu, Connie C. (2015-04-06). "Catalytic Silylation of Dinitrogen with a Dicobalt Complex". Journal of the American Chemical Society. 137 (14): 4638–4641. doi:10.1021/jacs.5b01445. ISSN   0002-7863. PMID   25799204.
  21. Cammarota, Ryan C.; Lu, Connie C. (2015-09-24). "Tuning Nickel with Lewis Acidic Group 13 Metalloligands for Catalytic Olefin Hydrogenation". Journal of the American Chemical Society. 137 (39): 12486–12489. doi:10.1021/jacs.5b08313. ISSN   0002-7863. PMID   26378748.
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