11 to 20 of 53 Results
Mar 4, 2024 - Blasco Group
Eichelmann, Robert; Monti, Joël; Hsu, Li-Yun; Kröger, Finn; Ballmann, Joachim; Blasco, Eva; Gade, Lutz H., 2024, "Two-Photon Microprinting of 3D Emissive Structures Using Tetraazaperylene-Derived Fluorophores [data]", https://doi.org/10.11588/data/C6UIWL, heiDATA, V1
The application of a new class of fluorophores based on a twisted tetraazaperylene core in the fabrication of emissive organic 3D microstructures has been investigated. The synthesis of a series of tetraazaperyleneamines and their corresponding octaazaperopyrenedioxides (OAPPDOs)... |
Feb 22, 2024 - Institute of Organic Chemistry - AK Mastalerz
Keck, Christoph; Rominger, Frank; Mastalerz, Michael, 2024, "Synthesis of Chiral Pyrene-Based 1,4-Dithiins [Data]", https://doi.org/10.11588/data/NCRUAV, heiDATA, V1
The 1,4-dithiin motif is known for its reversible redox properties to generate radical cations and diradical dications and thus is interesting for organic electronic applications. However, examples where this motif is embedded into chiral larger fused aromatic compounds is very r... |
Feb 20, 2024 - Gade Group
Eichelmann, Robert; Rippel, Daniel; Ballmann, Joachim; Gade, Lutz H., 2024, "Zipping up Tetraazaperylene: Synthesis of Tetraazacoronenes via Double Coupling in the Bay Positions [data]", https://doi.org/10.11588/data/HIERR9, heiDATA, V1
Substituted tetraazacoronene fluorophores have been obtained selectively by double Suzuki–Miyaura cross coupling of symmetrically substituted 1,2-bis(pinacolatoboryl)alkenes with a bay-substituted octaazaperopyrenedioxide (OAPPDO). Subsequent Scholl reaction of the dimethoxypheny... |
Feb 20, 2024 - Gade Group
Eichelmann, Robert; Jeudy, Pierre; Schneider, Lars; Zerhoch, Jonathan; Mayer, Paula R.; Ballmann, Joachim; Deschler, Felix; Gade, Lutz H., 2024, "Chiral Bay-Alkynylated Tetraazaperylenes: Photophysics and Chiroptical Properties", https://doi.org/10.11588/data/PGSVXO, heiDATA, V1
Fully bay-alkynylated octaazaperopyrene dioxide (OAPPDO) derivatives were accessible through Stille cross coupling reaction of the corresponding bay-chlorinated derivatives. This steric congestion of the bay area led to helically chiral fluorophores, and chiral resolution of two... |
Feb 20, 2024 - Gade Group
Eichelmann, Robert; Ballmann, Joachim; Gade, Lutz H., 2024, "Tetraazacoronenes and Their Dimers, Trimers and Tetramers [data]", https://doi.org/10.11588/data/ZT3AHN, heiDATA, V1
Tetraazacoronenes were synthesized from bay-functionalized tetraazaperylenes by Zr-mediated cyclization and four-fold Suzuki–Miyaura cross coupling. In the Zr-mediated approach, an η4-cyclobutadiene-zirconium(IV) complex was isolated as an intermediate to cyclobutene-annulated de... |
Feb 12, 2024 - SFB 1249: N-Heteropolyzyklen als Funktionsmaterialien - B: Theory & Structure
Stein, Arnulf; Rolf, Daniela; Lotze, Christian; Günther, Benjamin; Gade, Lutz H.; Franke, Katharina J.; Tegeder, Petra, 2024, "Band Formation at Interfaces Between N-Heteropolycycles and Gold Electrodes [research data]", https://doi.org/10.11588/data/QNAPNN, heiDATA, V1
Underlying data for figures in the paper "Band Formation at Interfaces Between N-Heteropolycycles and Gold Electrodes" |
Feb 9, 2024 - SFB 1249: N-Heteropolyzyklen als Funktionsmaterialien - C: Material & Function
Klauk, Hagen; Zschieschang, Ute; Waizmann, Ulrike; Weis, Jürgen; Borchert, James W., 2024, "Nanoscale flexible organic thin-film transistors [data]", https://doi.org/10.11588/data/7JALYI, heiDATA, V1
Direct-write electron-beam lithography has been used to fabricate low-voltage p-channel and n-channel organic thin-film transistors with channel lengths as small as 200 nm and gate-to-contact overlaps as small as 100 nm on glass and on flexible transparent polymeric substrates. T... |
Feb 1, 2024 - Bunz Group
Zong, Wansheng; Hippchen, Nikolai; Nico, Zeitter; Maier, Steffen; Philipp, Ludwig; Rominger, Frank; Freudenberg, Jan; Bunz, Uwe H. F., 2024, "Stable Azaheptacenes", https://doi.org/10.11588/data/P9AVCU, heiDATA, V1
we have developed a novel access to stable azaheptacenes and investigated both their (air-stable) radical anions as well as dianions. The two azaheptacenes are significantly more stable than reported examples. We identified their structure through NMR, IR, MS and X-ray crystallog... |
Jan 31, 2024 - SFB 1249: N-Heteropolyzyklen als Funktionsmaterialien - A: Synthesis
Hashmi, A. Stephen K.; Hüßler, Christopher; Kahle, Justin; Dietl, Martin C.; Krämer, Petra; Rominger, Frank; Rudolph, Matthias, 2024, "Facile two-step Synthesis of para-Dithienopyrazines [data]", https://doi.org/10.11588/data/14RXKL, heiDATA, V1
N-Heteropolycyclic compounds are valuable building blocks in organic electronic devices. In this work, a convenient route for the synthesis of para-dithienopyrazines from readily available starting materials is described. A cascade of nucleophilic aromatic substitution and subseq... |
Jan 25, 2024 - Bunz Group
Ludwig, Philipp; Rominger, Frank; Freudenberg, Jan; Bunz, Uwe H. F., 2024, "Stabilization of Acenes: “Geländer”-Pentacenes [data]", https://doi.org/10.11588/data/NITIKZ, heiDATA, V1
We report soluble tetrakis-biphenyl substituted pentacenes comprised of sp2 carbons and synthesized from pentacene-5,7,12,14-tetraone. Intramolecular Yamamoto coupling of two tetrakis(chlorobiphenylyl)pentacenes yields helical, doubly wrapped pentacenes, in which the quaterphenyl... |