The Klausen Research Group

Publications

  1. Coschigano, M. L.; Gregory, S. L.; Catazaro, J.; Rossini, A. J.; Klausen, R. S.* "Poly(cyclosilane) Postpolymerization Hydrosilylation", Macromolecules, 2024, As Soon As Publishable, DOI: 10.1021/acs.macromol.3c02110. link
  2. Wakefield, H. IV; Melvin, S. J.; Jiang, J.; Kevlishvili, I.; Siegler, M. A.; Craig, S. L.; Kulik, H. J.; Klausen, R. S.* "Angle-strained sila-Cycloalkynes" Chem. Commun. 2024, Advance Article, DOI: 10.1039/D4CC00439F. link
  3. Mukhopadhyaya, T.; Wagner, J.; Lee, T.D.; Ganley, C.; Tanwar, S.; Raj, P.; Li, L.; Song, Y.; Melvin, S.J.; Ji, Y.; Clancy, P.; Barman, I.; Thon, S.; Klausen, R.; Katz, H.E.* "Solution-Doped Donor–Acceptor Copolymers Based on Diketopyrrolopyrrole and 3, 3′-Bis (2-(2-(2-Methoxyethoxy) Ethoxy) ethoxy)-2, 2′-Bithiophene Exhibiting Outstanding Thermoelectric Power Factors with p-Dopants" Adv. Funct. Mater. 2023, Early View, DOI: 10.1002/adfm.202309646. link
  4. Melvin, S. J.; Mediavilla, B. A.; Ambrosius, E. G.; Jiang, Q.; Fang, F.; Ji, Y.; Mukopadhyaya, T.; Katz, H. E.; Klausen, R. S.* “RAFT Polymerization of an Aromatic Organoborane for Amphiphilic Block Copolymer Synthesis” Polym. Chem. 2023, 14, 4454–4464, DOI: 10.1039/D3PY00706E. link
  5. Wentz, K. E.; Yao, Y.; Kevlishvili, I.; Kouznetsova, T. B.; Mediavilla, B. A.; Kulik, H. J.; Craig, S. J.; Klausen, R. S.* “Systematic Investigation of Silicon Substitution on Single Macromolecule Mechanics.” Macromolecules 2023, 56, 6776-6782, DOI: 10.1021/acs.macromol.3c01066. link
  6. Wentz, K. E.; Klausen, R. S.* “A Greener Vision for P–C Bond Formation” ACS Cent. Sci. 2023, In press, DOI: 10.1021/acscentsci.3c00943. link
  7. Guan, W.; Lu, L.; Gittens, A. F.; Jiang, Q.; Klausen, R. S.*; Lin, S.* “Electrochemical Strategy to Si–Cl Homo- and Heterocoupling.” Angew. Chem. Int. Ed. 2023, e202303592, DOI: 10.1002/anie.202303592. link
  8. Wakefield, H.; Kevlishvili, I.; Wentz, K. E.; Yao, Y.; Kouznetsova, T. B.; Melvin, S. J.; Ambrosius, E. G.; Herzog-Arbeitman, A.; Siegler, M. A.; Johnson, J. A.; Craig, S. L.; Kulik, H. J.; Klausen, R. S.* "Synthesis and Ring-Opening Metathesis Polymerization of a Strained trans-Silacycloheptene and Single-Molecule Mechanics of Its Polymer" J. Am. Chem. Soc., 2023, 145, 10187-10196, DOI: 10.1021/jacs.3c01004. link
  9. Husted, K. E. L.; Brown, C.M.; Shieh, P.; Kevlishvili, I.; Kristufek, S. L.; Accardo, J. V.; Cooper, J. C.; Zafar, H.; Klausen, R. S.; Kulik, H. J.; Moore, J. S.; Sottos, N. R.; Kalow, J. A.; Johnson, J. A.* “Remolding and deconstruction of industrial thermosets via carboxylic acid-catalyzed bifunctional silyl ether exchange.” J. Am. Chem. Soc., 2023, 145, 1916–1923. link
  10. Gittens, A. F.; Jiang, Q.; Siegler, M. A.; Klausen, R.S.* "Conjugation in isomeric cyclosilane thioethers." Organometallics, 2022, 41, 3762. link
  11. Ji, Y.; Catazaro, J.; Jiang, Q.; Melvin, S. J.; Jiang, J.; Klausen, R. S.* "Characterization of styrene-vinyl alcohol copolymers by CP-MAS NMR spectroscopy." Macromolecules, 2022, 55, 7032–7038. link
  12. Jiang, Q.; Gittens, A. F.; Wong, S.; Siegler, M. A.; Klausen, R. S.* "Highly selective addition of cyclosilanes to alkynes enabling new conjugated materials." Chem. Sci., 2022, 13, 7587-7593. link
  13. Fang, F.; Jiang, Q.; Klausen, R. S. "Poly(cyclosilane) Connectivity Tunes Optical Absorbance." J. Am. Chem. Soc., 2022, 144, 7834-7843. DOI: 10.1021/jacs.2c01820. link
  14. Wakefield, H. IV; Jiang, Q.; Klausen, R. S. "Azaborine Isomer Effects on Benzylic Ion Stability and Reactivity: Consequences for BN2VN Ionic Polymerization." Org. Biomol. Chem., 2022, 20, 1407–141. link
  15. Ballestero-Martinez, E.; Ferguson, J. T.; Siegler, M. A.; Klausen, R. S. "Isolation of a Cyclopentasilane from Magnesium Reduction of a Linear Hexasilane." Eur. J. Org. Chem., 2021, Accepted, DOI: 10.1002/ejoc.202100768. link
  16. Barrett, B. J.; Jimenez, D.; Klausen, R. S.*; Bragg, A. E.* "Intramolecular Photoinduced Charge Transfer and Recombination Dynamics in Vinylarene Terminated Organosilanes." J. Phys. Chem. B, 2021, Accepted, DOI: 10.1021/acs.jpcb.1c01297. link
  17. Ji, Y.; Klausen, R.S. "Chain Transfer to Solvent in BN 2-Vinylnaphthalene Polymerization" J. Polym. Sci., 2021, Accepted Article, DOI: 10.1002/pol.20210362. link
  18. Jiang, Q.; Wong, S.; Klausen, R. S. "Effect of Polycyclosilane Microstructure on Thermal Properties." Polym. Chem., 2021, Advance Article, DOI: 10.1039/D1PY00383F. link
  19. Ferguson, J. T.; Jiang, Q.; Marro, E. A.; Siegler, M. A.; Klausen, R. S. "Long-range Coupling in Cyclic Silanes." Dalton. Trans., 2020, 49, 14951-14961. link
  20. Folster, C. P.; Nguyen, P. N.; Klausen, R. S. "Reductive Halocyclosilazane Polymerization." Dalton Trans. 2020, 49, 16125-16132. link
  21. Ji, Y.; Zhou, T.; van de Wouw, H. L.; Klausen, R. S. "Organoborane Strategy for Polymers Bearing Lactone, Ester, and Alcohol Functionality." Macromolecules, 2020, 53, 249-255. link
  22. Burns, D. A.; Press, E. M.; Siegler, M. A.; Klausen, R. S.; Thoi, V. S. "2D Oligosilyl Metal–Organic Frameworks as Multi‐state Switchable Materials" Angew. Chem. Int. Ed. 2020, 132, 773-778. link
  23. Dorn, R. W.; Marro, E. A.; Hanrahan, M. P.; Klausen, R. S.; Rossini, A. J. "Investigating the Microstructure of Poly(cyclosilane) by 29Si Solid-State NMR Spectroscopy and DFT Calculations." Chem. Mater. 2019, 31, 9168-9178. link
  24. Marro, E. A.; Folster, C. P.; Press, E. M.; Im, H.; Ferguson, J. T.; Siegler, M. A.; Klausen, R. S. "Stereocontrolled Syntheses of Functionalized cis- and trans-Siladecalins." J. Am. Chem. Soc. 2019, 141, 17926-17936. link
  25. Folster, C. P.; Nguyen, P. N.; Siegler, M. A.; Klausen, R. S. "Tunable SiN Conjugated Materials." Organometallics, 2019, 38, 2902-2909. link
  26. Marro, E. A.; Klausen, R. S. "Conjugated Polymers Inspired by Crystalline Silicon." Chem. Mater. 2019, 31, 2202-2211. link
  27. van de Wouw, H. L.; Klausen, R. S. "BN Polystyrenes: Emerging Optical Materials and Versatile Intermediates." J. Org. Chem., 2019, 84, 1117-1125. link
  28. Purkait, T. K.; Press, E. M.; Marro, E. A,; Siegler, M. A.; Klausen, R. S. "Low-Energy Transition in SiB Rings" Organometallics 2019, 38, 1688-1698. link
  29. Mendis, S. N.; Zhou, T.; Klausen, R. S. "Syndioselective Polymerization of a BN Aromatic Vinyl Monomer" Macromolecules 2018, 51, 6859-6864. link
  30. van de Wouw, H. L.; Awuyah, E. C.; Baris, J. I.; Klausen, R. S. "An Organoborane Vinyl Monomer with Styrene-like Radical Reactivity: Reactivity Ratios and Role of Aromaticity" Macromolecules 2018, 51, 6359-6368. link
  31. Marro, E. A.; Press, E. M.; Siegler, M. A.; Klausen, R. S. "Directional Building Blocks Determine Linear and Cyclic Silicon Architectures" J. Am. Chem. Soc. 2018, 140, 5976-5986. link
  32. Folster, C. P.; Klausen, R. S. "Metallocene Influence on Poly(Cyclosilane) Structure and Properties." Polym. Chem. 2018, 9, 1938-1941. link
  33. van de Wouw, H. L.; Lee, J. Y.; Awuyah, E. C.; Klausen, R. S. "A BN Aromatic Ring Strategy for Tunable Hydroxyl Content in Polystyrene." Angew. Chem. Int. Ed. 2018, 57, 1673-1677. link
  34. Marro, E. A.; Press, E. M.; Purkait, T. K.; Jimenez, D.; Siegler, M. A.; Klausen, R. S. "Cooperative Noncovalent Interactions Induce Ion Pair Separation in Diphenylsilanides." Chem. Eur. J. 2017, 23, 15633-15637. link
  35. van de Wouw, H. L.; Lee, J. Y.; Klausen, R. S. "Gram-Scale Free Radical Polymerization of an Azaborine Vinyl Monomer." Chem. Commun. 2017, 53, 7262-7265. link
  36. Zhou, J.; Folster, C. P.; Surampudi, S. K.; Jimenez, D.; Klausen, R. S.; Bragg, A. E. "Asymmetric Charge Separation and Recombination in Symmetrically Functionalized s-p Hybrid Oligosilanes." Dalton Trans., 2017, 46, 8716-8726. link
  37. Press, E. M.; Marro, E. A.; Surampudi, S. K.; Siegler, M. A.; Tang, J. A.; Klausen, R. S. "Synthesis of a Fragment of Crystalline Silicon: Poly(Cyclosilane)." Angew. Chem. Int. Ed., 2017, 56, 568-572. link
  38. Zhou, J.; Surampudi, S. K.; Bragg, A. E.; Klausen, R. S. "Photoinduced Charge Separation in Molecular Silicon." Chem. Eur. J., 2016, 22, 6204-6207. link
  39. van de Wouw, H. L.; Lee, J. Y.; Siegler, M. A.; Klausen, R. S. "Innocent BN Bond Substitution in Anthracene Derivatives." Org. Biomol. Chem., 2016, 14, 3256-3263. pdf
  40. van de Wouw, H. L.; Chamorro, J.; Quintero, M.; Klausen, R. S."Opposites Attract: Organic Charge Transfer Salts." J. Chem. Educ., 2015, 92, 2134-2139. pdf
  41. Surampudi, S.; Yeh, M.-L.; Siegler, M. A.; Hardigree, J. F. M.; Kasl, T. A.; Katz, H. E.; Klausen, R. S. “Increased Carrier Mobility in End-Functionalized Oligosilanes.” Chem. Sci., 2015, 6, 1905-1909. pdf
  42. Klausen, R. S.; Kennedy, C. R.; Hyde, A. M.; Jacobsen, E. N. "Chiral Thioureas Promote Enantioselective Pictect-Spengler Cyclization by Stabilizing Every Intermediate and Transition State in the Carboxylic-Acid Catalyzed Reaction." J. Am. Chem. Soc., 2017, 139, 12299–12309. link
  43. Su, T. A.; Li, H.; Klausen, R. S.; Kim, N. T.; Neupane, M.; Leighton, J. L.; Steigerwald, M. L.; Venkataraman, L.; Nuckolls, C. "Silane and Germane Electronics." Acc. Chem. Res. 2017, 50, 1088-1095. link
  44. Su, T. A.; Li, H.; Klausen, R. S.; Widawsky, J. R.; Batra, A.; Steigerwald, M. L.; Venkataraman, L.; Nuckolls, C. "Tuning Conductance in π–σ–π Single–Molecule Wires." J. Am. Chem. Soc., 2016, 138, 7791-7795. link
  45. Su, T. A.; Li, H.; Neupane, M.; Batra, A.; Klausen, R. S.; Kumar, B.; Steigerwald, M. L.; Venkataraman, L.; Nuckolls, C. "Single-Molecule Conductance in Atomically Precise Germanium Wires." J. Am. Chem. Soc. 2015, 137, 12400-12405. pdf
  46. Klausen, R. S.; Widawsky, J.; Su, T. A.; Li, H.; Steigerwald, M. L.; Venkataraman, L.; Nuckolls, C. “Atomic Components in Fluorene Circuits.” Chem. Sci., 2014, 5, 1561-1564. pdf
  47. Su, T. A.; Widawsky, J. R.; Li, H.; Klausen, R. S.; Leighton, J.; Steigerwald, M. L.; Venkataraman, L.; Nuckolls, C. “Silicon Ring Strain Creates High Conductance Pathways in Single-Molecule Circuits.” J. Am. Chem. Soc. 2013, 135, 18331–18334. pdf
  48. Klausen, R. S.; Widawsky, J.; Steigerwald, M. L.; Venkataraman, L.; Nuckolls, C. “Conductive Molecular Silicon.” J. Am. Chem. Soc. 2012, 134, 4541-4544. pdf
  49. Ahn, S.; Aradhya, S. V.; Klausen, R. S.; Capozzi, B.; Roy, X.; Steigerwald, M. L.; Nuckolls, C.; Venkataraman, L. “Electronic Transport and Mechanical Stability of Carboxyl Linked Single Molecule Junctions.” Phys. Chem. Chem. Phys. 2012, 14, 13841–13845. pdf
  50. Yunmi, L.; Klausen, R. S.; Jacobsen, E. N. “Practical Enantioselective Synthesis of Tetrahydro-gamma-carbolines Catalyzed by a Chiral Thiourea and Benzoic Acid.” Org. Lett. 2011, 13, 5564-5567. pdf
  51. Klausen, R. S.; Jacobsen, E. N. “Weak Brønsted Acid-Thiourea Co-catalysis: Enantioselective, Catalytic Protio-PictetSpengler Reactions.” Org. Lett. 2009, 11, 887-890. pdf