Publications by authors named "Jan Freudenberg"

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Steering Magnetic Coupling in Diradical Nonbenzenoid Nanographenes.
Ye Liu, Svenja Weigold, Linghao Yan, Zixuan Wei, Malte Hanne, Jan Freudenberg

J Am Chem Soc· July 2025

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Ring Contraction of Cyclooctatetraenes toward Non-Benzenoid Polycyclic Aromatic Hydrocarbons by Au(111)-Catalysis and Bulk Pyrolysis.
Svenja Weigold, Ye Liu, Hailong Li, Qiang Chen, Xuechao Li, Jan Freudenberg

Chemistry· July 2025

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Exceptionally High Two-Photon Absorption Cross Sections in Quinoidal Diazaacene-Bithiophene Derivatives.
Gabriel Sauter, Antonia Papapostolou, Audrey Pollien, Sergius Boschmann, Kathleen Fuchs, Jan Freudenberg

Angew Chem Int Ed Engl· June 2025

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Diels-Alder Reactivity of Triisopropylsilyl Ethynyl Substituted Acenes.
Fabian Jester, Tobias Kaczun, Steffen Maier, Paul Meiners, Svenja Weigold, Jan Freudenberg

Chemistry· January 2025

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Azaacene Diradicals Based on Non-Kekulé Meta-Quinodimethane with Large Two-Photon Cross-Sections in the Infrared Spectral Region.
Kathleen Fuchs, Nils Oberhof, Gabriel Sauter, Audrey Pollien, Kerstin Brödner, Jan Freudenberg

Angew Chem Int Ed Engl· November 2024

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Breaking Strong Alkynyl-Phenyl Bonds: Poly(-phenylene ethynylene)s under Mechanical Stress.
Maximilian Elter, Matthias Brosz, Daniel Sucerquia, Andrei Kuzhelev, Denis C Kiesewetter, Jan Freudenberg

J Am Chem Soc· October 2024

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Impact of Calcium and Phosphorus Levels on Optical Deterioration in Primary and Secondary Intraocular Lens Calcification.
Leoni Britz, Maximilian Hammer, Grzegorz Labuz, Agnieszka Zielinska, Fabian Jester, Jan Freudenberg

Transl Vis Sci Technol· October 2024

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How to Stabilize Large Soluble (Hetero-)Acenes.
Jan Freudenberg, Uwe H F Bunz

J Am Chem Soc· June 2024

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Stabilization of Acenes: "Geländer"-Pentacenes.
Philipp Ludwig, Frank Rominger, Jan Freudenberg, Uwe H F Bunz

Angew Chem Int Ed Engl· March 2024

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Stabilizing Azaheptacenes.
Wansheng Zong, Nikolai Hippchen, Nico Zeitter, Steffen Maier, Philipp Ludwig, Jan Freudenberg

J Am Chem Soc· March 2024

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Thermolysis of Biphenylene toward Cyclo-ortho-phenylenes.
Daniel Ehjeij, Frank Rominger, Uwe H F Bunz, Jan Freudenberg, Klaus Müllen

Angew Chem Int Ed Engl· February 2024

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Doubly Bridged Anthracenes: Blue Emitters for OLEDs.
Philipp Ludwig, Jacob Mayer, Lukas Ahrens, Frank Rominger, Giovanni Ligorio, Jan Freudenberg

Chemistry· January 2024

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Multi-trait analysis characterizes the genetics of thyroid function and identifies causal associations with clinical implications.
Rosalie B T M Sterenborg, Inga Steinbrenner, Yong Li, Melissa N Bujnis, Tatsuhiko Naito, Jan Freudenberg

Nat Commun· January 2024

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Hexakis-TIPS-Alkynylated Nonacenes: Persistent and Processible.
Nico Zeitter, Nikolai Hippchen, Anna Weidlich, Patrick Jäger, Philipp Ludwig, Jan Freudenberg

Chemistry· November 2023

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A large meta-analysis identifies genes associated with anterior uveitis.
Sahar Gelfman, Arden Moscati, Santiago Mendez Huergo, Rujin Wang, Veera Rajagopal, Jan Freudenberg

Nat Commun· November 2023

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Dimerization of a Reactive Azaacene Diradical: Synthesis of a Covalent Azaacene Cage.
Kathleen Fuchs, Samara Medina Rivero, Anna Weidlich, Frank Rominger, Noel Israel, Jan Freudenberg

Angew Chem Int Ed Engl· August 2023

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Efficient Intramolecular Singlet Fission in Spiro-Linked Heterodimers.
Oskar Kefer, Lukas Ahrens, Jie Han, Nikolaus Wollscheid, Erik Misselwitz, Jan Freudenberg

J Am Chem Soc· August 2023

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Heterophenoquinones: Tuning Optoelectronics and Electrochromicity.
Willi M Amberg, Sebastian N Intorp, Evgenia Dmitrieva, Alexey A Popov, Frank Rominger, Jan Freudenberg

Chemistry· July 2023

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Etheno-bridged Azaacene Spiro Dimers.
Lukas Ahrens, Frank Rominger, Jan Freudenberg, Uwe H F Bunz

Chemistry· July 2023

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Second Generation of Cata-Annulated Azaacene Bisimides: Towards Electron-Accepting Materials.
Nikolai Hippchen, Elena Heinzel, Cathy K Zhang, Patrick Jäger, Maximilian Elter, Jan Freudenberg

Chempluschem· May 2023

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Secondary Structures in Synthetic Poly(Amino Acids): Homo- and Copolymers of Poly(Aib), Poly(Glu), and Poly(Asp).
Matthias Rohmer, Jan Freudenberg, Wolfgang Hubertus Binder

Macromol Biosci· April 2023

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Ring-Expanding Rearrangement of Benzo-Fused Tris-Cycloheptenylenes towards Nonplanar Polycyclic Aromatic Hydrocarbons.
Barbara Ejlli, Frank Rominger, Jan Freudenberg, Uwe H F Bunz, Klaus Müllen

Chemistry· March 2023

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Ring-Expanding Rearrangement of Benzo-Fused Tris-Cycloheptenylenes towards Nonplanar Polycyclic Aromatic Hydrocarbons.
Barbara Ejlli, Frank Rominger, Jan Freudenberg, Uwe H F Bunz, Klaus Müllen

Chemistry· March 2023

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The Radical Anion and Dianion of Benzo[3,4]cyclobuta[1,2-]phenazine.
Zhu Wu, Nikolai Hippchen, Jie Han, Lei Ji, Alexandra Friedrich, Jan Freudenberg

J Org Chem· March 2023

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Azaarenes: 13 Rings in a Row by Cyclopentannulation.
Steffen Maier, Nikolai Hippchen, Fabian Jester, Marcus Dodds, Michel Weber, Jan Freudenberg

Angew Chem Int Ed Engl· January 2023

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