Susan Daniel
Fred H. Rhodes Professor
Education
- PhD, Lehigh University
- MS, Lehigh University
- BS, Lehigh University
Christopher Alabi
Associate Professor and Nancy and Peter Meinig Family Investigator in the Life Sciences
Education
- Postdoc, Massachusetts Institute of Technology
- PhD, Caltech
- BS and BSE, NYU and Stevens Institute of Technology
Departments and programs
Links
David B. Zax
Associate Professor
Publications
- Yang, D.-K.; Zax, D. B. Bandwidth extension in noise spectroscopy, submitted.
- Yang, D.-K.; Atkins, J. E.; Lester, C. C.; Zax, D. B. New developments in NMR using noise spectroscopy. Molecular Physics in press.
- Wong, S.; Zax, D. B. What do NMR linewidths tell us? Dynamics of alkali cations in a PEO-based nanocomposite polymer electrolyte, ion dynamics in some nanocomposite polymer electrolytes. Electrochimica Acta 1998, 42, 3513.
- Hijirida, D. H.; Do, K. G.; Michal, C.; Wong, Sl.; Zax, D.; Jelinski, L. W. 13C NMR of Nephila clavipes major ampullate silk gland. Biophys. J. 1996, 71, 3442.
- Zax, D. B. Field-dependent isotropic shifts and limitations to linewidths in solid state NMR: A floquet treatment. J. Chem. Phys. 1996, 105, 6616.
- Wong, S.; Vaia, R.; Giannelis, E. P.; Zax, D. B. Dynamics in a PEO-based nanocomposite polymer electrolyte probed by solid state NMR. Sol. State Ionics 1996, 86-88, 547.
- Liao, M.-Y.; Zax, D. B. Analysis of signal-to-noise ratios for noise excitation of quadrupolar nuclear spins in zero field. J. Phys. Chem. 1996, 100, 1483.
- Michal, C. A.; Simmons, A. H.; Chew, B. G. M.; Zax, D. B.; Jelinski, L. W. Presence of phosphorus in Nephila clavipes dragline silk. Biophys. J. 1996, 70, 489.
Education
- Research Staff, Weizmann Institute of Science
- Postdoc, University of Illinois at Urbana-Champaign
- Postdoc, Weizmann Institute of Science
- PhD, University of California, Berkeley
- AB, Harvard University
Departments and programs
Keywords
Study of novel solid materials using solid state magnetic resonance
Dotsevi Y. Sogah
Professor Emeritus
Publications
- Winningham, M. J.; Sogah, D. Y. A modular approach to polymer architecture control via catenation of prefabricated biomolecular segments. Polymers containing parallel beta-sheets templated by a phenoxathiin-based reverse turn mimic. Macromolecules 1997, 30, 862.
- Puts, R. D.; Sogah, D. Y. Universal multifunctional initiator containing orthogonal reactive sites. Synthesis of macromonomers and comb polymers using consecutive controlled free radical and cationic ring-opening polymerizations. Macromolecules 1997, 30, 7050.
- Weimer, M. W.; Scherman, O. A.; Sogah, D. Y. Multifunctional initiators containing orthogonal sites. One-pot, one-step, block copolymerization by simultaneous free radical and either cationic ring-opening or anionic ring-opening polymerizations. Macromolecules 1998, 31.
- Puts, R. D.; Sogah, D. Y. Cationic ring-opening cyclopolymerization of bis(oxazolines). Synthesis of chiral polymers containing pendent heteromacrocycles. Macromolecules 1997, 30, 6826.
- Zheng, S.; Sogah, D. Y. Highly isotactic optically active methacrylate polymers by free radical cyclopolymerization. Tetrahedron 1997, 53, 15469.
- Puts, R. D.; Chao, J.; Sogah, D. Y. Novel biaryl bis(oxazolines). Synthesis 1997, 431.
- Puts, R. D.; Sogah, D. Y. Control of living free radical polymerization by a new chiral nitroxide and implications for the polymerization mechanism. Macromolecules 1996, 29, 3323.
- Nakano, T., Sogah, D. Y. Toward control of stereochemistry in GTP by a rational monomer design. Cyclopolymerization of 2,2'-bis(methacryloylxymethyl)-1,1'-binaphthyl. J. Am. Chem. Soc. 1995, 117, 534.
- Shen, J., Sogah, D. Y. Novel alternating copolymers of controlled sequence. Regiochemical control in aldol group transfer polymerization of substituted (butadienyloxy)trialkylsilanes. Macromolecules 1994, 27, 6996.
Education
- 1975-1977 Postdoctoral Research Fellow (UCSB, T. C. Bruice)
- 1975 - Ph.D. UCLA (D. J. Cram)
- 1974 - M.S. UCLA (D. J. Cram)
- 1971 - B.Sc. Hons Chem (University of Ghana at Legon)
- 1970 - B.Sc. Chem & Math (University of Ghana at Legon)
Departments and programs
Keywords
Polymer science, control of macromolecular stereochemistry, protein-based polymers, nanoscale materials
John A. Marohn
Professor
Publications
Search PubMed for articles by “JA Marohn”.
For a current list of publications go here.
For current publications also see Orcid and Google Scholar.
Representative Publications
Nanoscale magnetic resonance imaging
- C. E. Isaac, C. M. Gleave, P. T. Nasr, H. L. Nguyen, E. A. Curley, J. L. Yoder, E. W. Moore, L. Chen, and J. A. Marohn, Dynamic nuclear polarization in a magnetic resonance force microscope experiment, Phys. Chem. Chem. Phys., 2016, 18, 8806 – 8819, URL http://dx.doi.org/10.1039/C6CP00084C, PMC5609491.
- J. G. Longenecker, H. J. Mamin, A. W. Senko, L. Chen, C. T. Rettner, D. Rugar, and J. A. Marohn, High-gradient nanomagnets on cantilevers for sensitive detection of nuclear magnetic resonance, ACS Nano, 2012, 6, 9637 – 9645, URL http://dx.doi.org/10.1021/nn3030628.
- E. W. Moore, S.-G. Lee, S. A. Hickman, S. J. Wright, L. E. Harrell, P. P. Borbat, J. H. Freed, and J. A. Marohn, Scanned-probe detection of electron spin resonance from a nitroxide spin probe, Proc. Natl. Acad. Sci. U.S.A., 2009, 106, 22251 – 22256, URL http://dx.doi.org/10.1073/pnas.0908120106.
- S. R. Garner, S. Kuehn, J. M. Dawlaty, N. E. Jenkins, and J. A. Marohn, Force-gradient detected nuclear magnetic resonance, Appl. Phys. Lett., 2004, 84, 5091 – 5093, URL http://dx.doi.org/10.1063/1.1762700.
Nanoscale fluctuations
- S. Lekkala, J. A. Marohn, and R. F. Loring, Electric force microscopy of semiconductors: Theory of cantilever frequency fluctuations and noncontact friction, J. Chem. Phys., 2013, 139, 184702, URL http://dx.doi.org/10.1063/1.4828862.
- N. Hoepker, S. Lekkala, R. F. Loring, and J. A. Marohn, Dielectric fluctuations over polymer films detected using an atomic force microscope, J. Phys. Chem. B, 2011, 115, 14493 – 14500, URL http://dx.doi.org/10.1021/jp207387d.
- S. M. Yazdanian, N. Hoepker, S. Kuehn, R. F. Loring, and J. A. Marohn, Quantifying electric field gradient fluctuations over polymers using ultrasensitive cantilevers, Nano Lett., 2009, 9, 2273 – 2279, URL http://dx.doi.org/10.1021/nl9004332.
- S. Kuehn, J. A. Marohn, and R. F. Loring, Noncontact dielectric friction, J. Phys. Chem. B, 2006, 110, 14525 – 145258, URL http://dx.doi.org/10.1021/jp061865n.
Charge and ion motion in unconventional semiconductors
- R. P. Dwyer, S. R. Nathan, and J. A. Marohn, Microsecond photocapacitance transients observed using a charged microcantilever as a gated mechanical integrator, Sci. Adv., 2017, 3, e1602951, URL http://dx.doi.org/10.1126/sciadv.1602951.
- A. M. Tirmzi, R. P. Dwyer, T. Hanrath, and J. A. Marohn, Coupled slow and fast charge dynamics in cesium lead bromide perovskite, ACS Energy Lett., 2017, 2, 488 – 496, URL http://dx.doi.org/10.1021/acsenergylett.6b00722.
- R. P. Dwyer, L. E. Harrell, and J. A. Marohn, Lagrangian and impedance spectroscopy treatments of electric force microscopy, Phys. Rev. Appl., 2019, 11, 064020, URL http://dx.doi.org/10.1103/PhysRevApplied.11.064020.
- J. L. Luria, K. A. Schwarz, M. J. Jaquith, R. G. Hennig, and J. A. Marohn, Spectroscopic characterization of charged defects in polycrystalline pentacene by time- and wavelength-resolved electric force microscopy, Adv. Mater., 2011, 23, 624 – 628, URL http://dx.doi.org/10.1002/adma.201003073.
- T. N. Ng, W. R. Silveira, and J. A. Marohn, Dependence of charge injection on temperature, electric field, and energetic disorder in an organic semiconductor, Phys. Rev. Lett., 2007, 98, 066101, URL http://dx.doi.org/10.1103/PhysRevLett.98.066101.
- J. D. Slinker, J. A. DeFranco, M. J. Jaquith, W. R. Silveira, Y.-W. Zhong, J. M. Moran-Mirabal, H. G. Craighead, H. D. Abruña, J. A. Marohn, and G. G. Malliaras, Direct measurement of the electric-field distribution in a light-emitting electrochemical cell, Nat. Mater., 2007, 6, 894 – 899, URL http://dx.doi.org/10.1038/nmat2021.
- E. M. Muller and J. A. Marohn, Microscopic evidence for spatially inhomogeneous charge trapping in pentacene, Adv. Mater., 2005, 17, 1410, URL http://dx.doi.org/10.1002/adma.200401174.
Education
- National Research Council Postdoctoral Associate, US Army Research Laboratory
- PhD, California Institute of Technology
- BS, Chemistry, University of Rochester
- BA, Physics, University of Rochester
Departments and programs
Links
Keywords
Pi-conjugated systems, electric force and magnetic resonance force microscopies
Song Lin
Tisch University Professor
Publications
- Novaes, L. F. T.; Ho, J. S. K.; Mao, K.; Liu, K.; Tanwar, M.; Neurock, M.; Villemure, E.; Terrett, J. A.; Lin, S. “Exploring Electrochemical C(sp3)–H Oxidation for the Late-Stage Methylation of Complex Molecules.” J. Am. Chem. Soc. 2022, 144, 1187–1197.
- Rein, J.; Annand, J. R.; Wismer, M. K.; Fu, J.; Siu, J. C.; Klapars, A; Strotman, N. A.; Kalyani, D.; Lehnherr, D.; Lin, S. “Unlocking the Potential of High-Throughput Experimentation for Electrochemistry with a Standardized Microscale Reactor.” ACS Cent. Sci. 2021, 8, 1347–1355.
- Novaes, L. F. T.; Liu, J.; Shen, Y.; Lu, L.; Meinhardt, J. M.; Lin, S. “Electrocatalysis as an Enabling Technology for Organic Synthesis.” Chem. Soc. Rev. 2021, 50, 7941–8002.
- Nelson, H. M.; Siu, J. C.; Saha, A.; Cascio, D.; MacMillan, S. N.; Wu, S.-B.; Lu, C.; Rodríguez, J. A.; Houk, K. N.; Lin, S. “Isolation and X‑ray Crystal Structure of an Electrogenerated TEMPO−N3 Charge-Transfer Complex.” Org. Lett. 2021, 23, 454–458.
- Lu, L.; Siu, J. C.; Lai, Y.; Lin, S. “An Electroreductive Approach to Radical Silylation via the Activation of Strong Si–Cl Bonds.” J. Am. Chem. Soc. 2020, 142, 21272–21278.
- Zhang, W.; Lin, S. “Electroreductive Carbofunctionalization of Alkenes with Alkyl Bromides via a Radical-Polar Crossover Mechanism.” J. Am. Chem. Soc. 2020, 142, 20661–20670.
- Robinson, S. G.; Wu, X.; Jiang, B.; Sigman, M. S.; Lin, S. “Mechanistic Studies Inform Design of Improved Ti(salen) Catalysts for Enantioselective [3+2] Cycloaddition.” J. Am. Chem. Soc. 2020, 142, 18471–18482.
- Liu, J.; Lu, L.; Wood, D. P.; Lin, S. “New Redox Strategies in Organic Synthesis by Means of Electrochemistry and Photochemistry.” ACS Cent. Sci. 2020, 6, 1317–1340.
- Song, L.; Fu, N.; Ernst, B. G.; Lee, W. H.; Frederick, M. O.; DiStasio, R. A. Jr.; Lin, S. “Dual Electrocatalysis Enables Enantioselective Hydrocyanation of Conjugated Alkenes.” Nat. Chem. 2020, 12, 747–754.
- Kim, H.; Kim, H.; Lambert, T.; Lin, S. “Reductive Electrophotocatalysis: Merging Electricity and Light to Achieve Extreme Reduction Potentials.” J. Am. Chem. Soc. 2020, 142, 142, 2087-2092.
- Zhang, W.; Carpenter, K.; Lin, S. “Electrochemistry Broadens the Scope of Flavin Photocatalysis: Photoelectrocatalytic Oxidation of Unactivated Alcohols.” Angew. Chem., Int. Ed. 2019, 141, 14480-14485.
- Fu, N.; Song, L.; Liu, J.; Shen, Y.; Siu, J. C.; Lin, S. “New Bisoxazoline Ligands Enable Enantioselective Electrocatalytic Cyanofunctionalization of Vinylarenes.” J. Am. Chem. Soc. 2019, 141, 14480-14485.
- Ye, K-Y.; McCallum, T.; Lin, S. “Bimetallic Radical Redox-Relay Catalysis for the Isomerization of Epoxides to Allylic Alcohols.” J. Am. Chem. Soc. 2019, 141, 9548-9554.
- Siu, J. C.; Parry, J. B.; Lin, S. “Aminoxyl-Catalyzed Electrochemical Diazidation of Alkenes Mediated by a Metastable Charge-Transfer Complex.” J. Am. Chem. Soc. 2019, 141, 2825-2831.
- Wu, X.; Hao, W.; Ye, K-Y.; Jiang, B.; Pombar, G.; Song, Z.; Lin, S. “Ti-Catalyzed Radical Alkylation of Secondary and Tertiary Alkyl Chlorides Using Michael Acceptors.” J. Am. Chem. Soc. 2018, 140, 14836-14843.
- Siu, J. C.; Sauer, G. S.; Saha, A.; Macey, R. L.; Fu, N.; Chauvirie, T.; Lancaster, K. L.; Lin, S. “Electrochemical Azidooxygenation of Alkenes Mediated by a TEMPO–N3 Charge-Transfer Complex.” J. Am. Chem. Soc. 2018, 40, 12511-12520.
- Fu, N.; Sauer, G. S.; Lin, S. “A general, electrocatalytic approach to the synthesis of vicinal diamines.” Nat. Protoc. 2018, 13, 1725–1743.
- Sauer, G. S.; Lin, S. “An Electrocatalytic Approach to the Radical Difunctionalization of Alkenes.” ACS Catal. 2018, 8, 5175–5187.
- Hao, W.; Harenberg, J. H.; Wu, X.; Macmillan, S. N.; Lin, S. “Diastereo- and Enantioselective Formal [3 + 2] Cycloaddition of Cyclopropyl Ketones and Alkenes via Ti-Catalyzed Radical Redox Relay” J. Am. Chem. Soc. 2018, 140, 3514–3517.
- Ye, K.; Pombar, G.; Fu, N.; Sauer, G. S.; Keresztes, I.; Lin, S. “Anodically Coupled Electrolysis for the Heterodifunctionalization of Alkenes” J. Am. Chem. Soc. 2018, 140, 2438–2441.
- Peterson, B. M.; Lin, S.; Fors, B.P. “Electrochemically Controlled Cationic Polymerization of Vinyl Ethers” J. Am. Chem. Soc. 2018, 140, 2076–2079.
- Fu, N.; Sauer, G. S.; Lin, S. “Electrocatalytic Radical Dichlorination of Alkenes with Nucleophilic Chlorine Sources.” J. Am. Chem. Soc. 2017, 139, 15548–15553.
- Hao, W.; Wu, X.; Sun, J. Z.; Siu, J. C.; MacMillan, S. N.; Lin, S. “Radical Redox-Relay Catalysis: Formal [3+2] Cycloaddition of N-Acylaziridines and Alkenes”, J. Am. Chem. Soc. 2017, 139, 12141–12144.
- Fu, N.; Sauer, G. S.; Saha, A.; Loo, A; Lin, S. “Metal-catalyzed electrochemical diazidation of alkenes”, Science 2017, 357, 575–579.
- Kennedy, C. R.;* Lin, S.;* Jacobsen, E. N. “The cation–π interactions in small-molecule catalysis”, Angew. Chem., Int. Ed. 2016, 55, 12596–12624. (* co-first author)
- Cao, Z.; Kim, D.; Yu, Y.; Xu, J.; Lin, S.; Wen, X.; Nichols, E. M.; Jeong, K.; Reimer, J. A.; Yang, P.; Chang, C. J. “A molecular surface functionalization approach to tuning nanoparticle electrocatalysts for carbon dioxide reduction”, J. Am. Chem. Soc. 2016, 138, 8120–8125.
- Lin, S.;* Diercks, C. S.;* Zhang, Y.-B.;* Kornienko, N.; Nichols, E. M.; Zhao, Y.; Paris, A. R.; Kim, D.; Yang, P.; Yaghi, O. M.; Chang, C. J. “Covalent organic frameworks comprising cobalt porphyrins for catalytic CO2 reduction in water”, Science 2015, 349, 1208–1213. (* co-first author)
- Kornienko, N.; Zhao, Y.; Kley, C.; Zhu, C.; Kim, D.; Lin, S.; Chang, C. J.; Yaghi, O. M.; Yang, P. “Metal-organic frameworks for electrocatalytic reduction of carbon dioxide”, J. Am. Chem. Soc. 2015, 137, 14129–14135.
- Rogers, C.; Chen, C.; Pedramrazi, Z.; Omrani, A. A.; Tsai, H.-Z.; Jung, H. S.; Lin, S.; Crommie, M. F.; Fischer, F. R. “Closing the nanographene gap: surface-assisted synthesis of peripentacene from 6,6’-bipentacene precursors”, Angew. Chem., Int. Ed. 2015, 54, 15143–15146.
- Zhang, H.; Lin, S.; Jacobsen, E. N. “Enantioselective selenocyclization via dynamic kinetic resolution of seleniranium ions by hydrogen-bond donor catalysts”, J. Am. Chem. Soc. 2014, 136, 16485–16488.
- Lin, S.; Jacobsen, E. N. “Thiourea-catalysed ring opening of episulfonium ions with indole derivatives by means of stabilizing non-covalent interactions”, Nature Chem. 2012, 4, 817–824.
- Knowles, R. R.; Lin, S.; Jacobsen, E. N. “Enantioselective thiourea-catalyzed polycyclizations”, J. Am. Chem. Soc. 2010, 132, 5030–5032.
- Li, Y.-Z.; Li, B.-J.; Lu, X.-Y.; Lin, S.; Shi, Z.-J. “Cross dehydrogenative arylation (CDA) of a benzylic C–H bond with arenes by iron catalysis”, Angew. Chem., Int. Ed. 2009, 48, 3817–3820.
- Lin, S.; Song, C.-X.; Cai, G.-X.; Wang, W.H.; Shi, Z.-J. “Intra/Intermolecular direct allylic alkylation via Pd(II)-catalyzed allylic C–H activation”, J. Am. Chem. Soc. 2008, 130, 12901–12903.
Education
- Postdoc, University of California, Berkeley
- PhD, Harvard University
- BS, Peking University
Departments and programs
Links
Keywords
Organic chemistry, electrocatalysis, asymmetric catalysis, organic materials, green chemistry
Stephen Lee
Professor
Publications
- Gardner, G.; Kiang, Y. H.; Lee, S.; Asgaonkar, A.; Venkataraman, D. Exchange properties of a 3-D coordination compound. J. Am. Chem. Soc. 1996, 118(29), 6946.
- Gardner, G.; Venkataraman, D.; Moore, J. S.; Lee, S. Spontaneous assembly of hinged coordination network. Nature 1995, 374, 792.
- Venkataraman, D.; Gardner, G. B.; Lee, S.; Moore, J. S. Zeolite-like behavior of a coordination compound. J. Am. Chem. Soc. 1995, 117, 11600.
- DiMasi, E.; Aronson, M. C.; Mansfield, J. F.; Foran, B.; Lee, S. Chemical pressure and charge density waves in rare earth polytellurides. Phys. Rev. 1995, B52, 404.
- Venkataraman, D.; Lee, S.; Zhang, J.; Moore, J. S. An organic solid with wide channels based on hydrogen bonding between macrocycles. Nature 1994, 371, 591.
Education
- PhD, University of Chicago
- BA, Yale University
Departments and programs
Keywords
Synthesis, structure and electronic structure of extended solids
Melissa A. Hines
Professor
Publications
- J. Balajka, M. A. Hines, W. J. I. DeBenedetti, M. Schmid, and U. Diebold, “High affinity adsorption leads to molecularly ordered interfaces on TiO₂ in air and solution,” Science 361, 786 (2018).
- W. J. I. DeBenedetti, E. S. Skibinski, D. Jing, A. Song, and M. A. Hines, “Atomic-scale understanding of catalyst activation: Carboxylic acid solutions, but not the acid itself, increase the reactivity of anatase (001) faceted nanocatalysts,” J. Phys. Chem. C 122, 4307 (2018).
- E. S. Skibinski, A. Song, W. J. I. DeBenedetti, A. G. Ortoll-Bloch, and M. A. Hines,“Solution deposition of self-assembled benzoate monolayers on rutile (110): Effect of π-π interactions on monolayer structure,” J. Phys. Chem. C 120, 15881 (2016).
- A. Song, E. S. Skibinski, W. J. I. DeBenedetti, A. G. Ortoll-Bloch, and M. A. Hines, “Nanoscale solvation leads to spontaneous formation of a bicarbonate monolayer on rutile (110) under ambient conditions: Implications for CO2 photoreduction,” J. Chem. Phys. C 120, 9326 (2016).
- E. S. Skibinski, and M. A. Hines, “Finding needles in haystacks: Scanning tunneling microscopy reveals the complex reactivity of Si(100) surfaces,” Acc. Chem. Res. 48, 2159 (2015).
- M. A. Hines, M. F. Faggin, A. Gupta, B. S. Aldinger, and K. Bao, “Self-propagating surface reactions produce near-ideal Si(100) surfaces,” J. Phys. Chem. C 116, 18920 (2012).
Education
- Postdoc MTS, AT&T Bell Laboratories
- PhD, Stanford University
- SB, Massachusetts Institute of Technology
Departments and programs
Links
Keywords
Surface science, scanning probe microscopies, nanofabrication, chemical etching
Brett P. Fors
Professor
Education
- Elings Postdoctoral Fellow, University of California, Santa Barbara
- PhD, Massachusetts Institute of Technology
- BSc, Montana State University
Departments and programs
Links
Robert A. DiStasio Jr.
Associate Professor
Publications
Education
- Postdoc, Princeton University
- PhD, University of California, Berkeley
- BS, Portland State University