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1 to 6 of 6 Results
Stable Azaheptacenes
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...
Substituted Cyclopentannulated Tetraazapentacenes [data]
Feb 6, 2023 - Bunz Group
Maier, Steffen, 2023, "Substituted Cyclopentannulated Tetraazapentacenes [data]", https://doi.org/10.11588/data/AUTKBW, heiDATA, V1
Brominated pentannulated dihydrotetraazapentacenes were prepared by gold- or palladium-catalyzed 5-endo-dig cyclization of TIPS-ethynylated dihydrotetraazaacenes (TIPS = triisopropylsilyl). Post-functionalization was demonstrated by Sonogashira alkynylation and Rosenmund-von Brau...
Azaarenes: 13 Rings in a Row by Cyclopentannulation [data]
Feb 6, 2023 - Bunz Group
Maier, Steffen, 2023, "Azaarenes: 13 Rings in a Row by Cyclopentannulation [data]", https://doi.org/10.11588/data/CSP7AW, heiDATA, V1
Cyclopentannulation was explored as a strategy to access large, stable azaarenes. Buchwald-Hartwig coupling of previously reported di- and tetrabrominated cyclopentannulated N,N'-dihydrotetraazapentacenes furnished stable azaarenes with up to 13 six-membered rings in a row and a...
A Stable Hexaazaoctacene Cruciform σ-Dimer [Data]
Jun 30, 2022 - Bunz Group
Maier, Steffen, 2022, "A Stable Hexaazaoctacene Cruciform σ-Dimer [Data]", https://doi.org/10.11588/data/FABJEI, heiDATA, V1
Buchwald‐Hartwig coupling of a triisopropylsilyl (TIPS)‐ethynylated dibromo‐N,N'‐dihydrotetraazapentacene with 1,4‐bis(TIPS‐ethynyl)‐2,3‐diaminonaphthalene furnishes a dihydrohexaazaoctacene. Its oxidation with MnO2 results in a 7,7'‐bi(hexaazaoctacenyl). In addition to eight TIP...
Persistent Ambipolar Heptacenes and Their Redox Species [Data]
May 2, 2022 - Bunz Group
Zeitter, Nico; Hippchen, Nikolai; Maier, Steffen; Rominger, Frank; Freudenberg, Jan; Bunz, Uwe H. F.; Dreuw, A, 2022, "Persistent Ambipolar Heptacenes and Their Redox Species [Data]", https://doi.org/10.11588/data/CVD7WF, heiDATA, V1
Research Data associated with the related publication. Sixfold TIPS-ethynylation combined with fourfold bromination of the armchair edges furnishes a long-lived, soluble heptacene; π-extension via Stille coupling accesses a persistent tetrabenzononacene. Both types of acenes were...
Cyclodimers and Cyclotrimers of 2,3-Bisalkynylated Anthracenes, Phenazines and Diazatetracenes [Data]
Oct 7, 2021 - Bunz Group
Maier, Steffen; Hippchen, Nikolai; Rominger, Frank; Freudenberg, Jan; Bunz, Uwe H. F., 2021, "Cyclodimers and Cyclotrimers of 2,3-Bisalkynylated Anthracenes, Phenazines and Diazatetracenes [Data]", https://doi.org/10.11588/data/24JDZD, heiDATA, V2
Research Data associated with the related publication.
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