1 to 10 of 34 Results
Mar 27, 2023 - Institute of Organic Chemistry - AK Mastalerz
Roß, Lisa; Reitemeier, Julius; Ghalami, Farhad; Zhang, Wen-Shan; Gross, Jürgen H.; Rominger, Frank; Elbert, Sven M.; Schröder, Rasmus; Elstner, Marcus; Mastalerz, Michael, 2023, "Two Dimensional Triptycene End-Capping and Its Influence on the Self-Assembly of Quinoxalinophenanthrophenazines [Data]", https://doi.org/10.11588/data/W3KWEJ, heiDATA, V1
A series of quinoxalinophenanthrophenazines (QPPs) with two-dimensional triptycene end-caps was synthesized from a triphenylene base ortho-diamine. UV/vis spectroscopy suggested the formation of dimers in solution which was further confirmed by MALDI-TIMS-TOF-MS and single crysta... |
Mar 4, 2024 - Bunz Group
Ehjeij, Daniel; Rominger, Frank; Bunz, Uwe; Freudenberg, Jan; Müllen, Klaus, 2024, "Thermolysis of Biphenylene toward Cyclo-ortho-phenylenes [data]", https://doi.org/10.11588/data/AYVNYK, heiDATA, V1
The solvent and catalyst free thermolysis of biphenylenes at 350 °C furnishes [n]cyclo-ortho-phenylenes ([n]COPs, n=4–10) in one step and in high yields. At 400 °C biphenylene dimerizes into tetraphenylene, but lower reaction temperatures produce cyclooligomers. If suitably subst... |
Aug 3, 2022 - Bunz Group
Wiesner, Thomas; Wu, Zhu; Han, Jie; Ji, Lei; Friedrich, Alexandra; Krummenacher, Ivo; Moos, Michael; Lambert, Christoph; Braunschweig, Holger; Rudin, Benjamin; Reiss, Hilmar; Tverskoy, Olena; Rominger, Frank; Dreuw, Andreas; Marder, Todd; Freudenberg, Jan; Bunz, Uwe, 2022, "The Radical Anion, Dianion and Electron Transport Properties of Tetraiodo-Tetraazapentacene [Data]", https://doi.org/10.11588/data/S0KS2I, heiDATA, V1
Tetraiodotetraazapentacene I4TAP , the last missing derivative in the series of halogenated silylated tetraazapentacenes, was synthesized via condensation chemistry from a TIPS-ethynylated diaminobenzothiadiazol in three steps. Single and double reduction furnished its air-stable... |
Jan 24, 2022 - Institute of Organic Chemistry - AK Mastalerz
Uhrmacher, Fabian; Elbert, Sven Michael; Rominger, Frank; Mastalerz, Michael, 2022, "Synthesis of Large [2+3] Salicylimine Cages with Embedded Metal-Salphen Units [Data]", https://doi.org/10.11588/data/LOR2JH, heiDATA, V1
Shape-persistent trinuclear Ni(II)- and Pt(II)-cage compounds with large cavities have been synthesized by using bissalicylaldehyde struts that contain the metal salphen units already. The Pt(II) derivative was investigated by single crystal X-ray diffraction. |
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... |
Aug 23, 2023 - Institute of Organic Chemistry - AK Mastalerz
Kirschbaum, Tobias; Rominger, Frank; Mastalerz, Michael, 2023, "Synthesis of a Benzotrisazulene via Trioxobenzotrisazulene [data]", https://doi.org/10.11588/data/JE8LF7, heiDATA, V1
A benzotrisazulene was synthesized on the basis of a truxene precursor by a series of Suzuki–Miyaura reactions via the intermediate trisoxo compound. The latter occurs in two forms (syn and anti), and the syn forms porous crystals. |
Mar 26, 2024 - SFB 1249: N-Heteropolyzyklen als Funktionsmaterialien - A: Synthesis
Hüßler, Christopher; Dietl, Martin C.; Kahle, Justin; Lopes, Eric F.; Kawamura, Miku; Krämer, Petra; Rominger, Frank; Rudolph, Matthias; Hachida, Iwao; Hashmi, A. Stephen K., 2024, "Synthesis and structural properties of para-diselenopyrazines [data]", https://doi.org/10.11588/data/UYS0N6, heiDATA, V1
Recently, dithienopyrazines have emerged as promising building blocks in the field of materials science, showcasing their potential as hole-transport materials in organic electronic devices. Herein, we report the synthesis of its heavier analogues, the diselenopyrazines, along wi... |
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 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... |
Aug 23, 2023 - Institute of Organic Chemistry - AK Mastalerz
Wagner, Philippe; Rominger, Frank; Gross, Jürgen H.; Mastalerz, Michael, 2023, "Solvent-Controlled Quadruple Catenation of Giant Chiral [8+12] Salicylimine Cubes Driven by Weak Hydrogen Bonding [Data]", https://doi.org/10.11588/data/TIYBD2, heiDATA, V1
A quadruply interlocked catenane has been formed from giant chiral [8+12] salicylimine cubes in a reaction that can be controlled by the reaction solvent. Single-crystal X-ray diffraction revealed hydrogen bonding to be a central driving force for the catenation. Furthermore, scr... |
