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4npi Stable Multitasking Azapentacene: Acidochromism, Hole Mobility, and Visible Light Photoresponse.
Das S, Mandal A, Alam MT, Kumar C, Sarkar A, Senanayak SP, Bhattacharyya S, Zade SS. Das S, et al. ACS Appl Mater Interfaces. 2022 Aug 24;14(33):37982-37989. doi: 10.1021/acsami.2c04490. Epub 2022 Aug 10. ACS Appl Mater Interfaces. 2022. PMID: 35947785
The exceptional stability of this formally antiaromatic pi-system is attributed to the fused dihydropyrazine ring, which has ethenamine (enamine) conjugations, and hence, the pi-electrons delocalize over the nearly planar azapentacene core to endow with a global aromatic c …
The exceptional stability of this formally antiaromatic pi-system is attributed to the fused dihydropyrazine ring, which has ethenamine (ena …
Hash-Mark-Shaped Azaacene Tetramers with Axial Chirality.
Inoue Y, Sakamaki D, Tsutsui Y, Gon M, Chujo Y, Seki S. Inoue Y, et al. J Am Chem Soc. 2018 Jun 13;140(23):7152-7158. doi: 10.1021/jacs.8b02689. Epub 2018 May 25. J Am Chem Soc. 2018. PMID: 29781270
The tetramers of azapentacene derivatives with unique hash mark (#)-shaped structures were prepared in a quite facile manner. ...
The tetramers of azapentacene derivatives with unique hash mark (#)-shaped structures were prepared in a quite facile manner. ...
Synthesis of tetrachloro-azapentacene as an ambipolar organic semiconductor with high and balanced carrier mobilities.
Song CL, Ma CB, Yang F, Zeng WJ, Zhang HL, Gong X. Song CL, et al. Org Lett. 2011 Jun 3;13(11):2880-3. doi: 10.1021/ol2008999. Epub 2011 May 6. Org Lett. 2011. PMID: 21548606
Two new azapentacene derivatives 9,10-dibromo-6,13-bis(triisopropylsilylethynyl)-1-azapentacene (a) and 8,9,10,11-tetrachloro-6,13-bis(triisopropylsilylethynyl)-1-azapentacene (b) were synthesized, and their FET properties were investigated. ...
Two new azapentacene derivatives 9,10-dibromo-6,13-bis(triisopropylsilylethynyl)-1-azapentacene (a) and 8,9,10,11-tetrachloro- …
The Radical Anion and Dianion of Tetraazapentacene.
Ji L, Haehnel M, Krummenacher I, Biegger P, Geyer FL, Tverskoy O, Schaffroth M, Han J, Dreuw A, Marder TB, Bunz UH. Ji L, et al. Angew Chem Int Ed Engl. 2016 Aug 22;55(35):10498-501. doi: 10.1002/anie.201603177. Epub 2016 Jul 19. Angew Chem Int Ed Engl. 2016. PMID: 27432760
Large N-heteroacenes: new tricks for very old dogs?
Bunz UH, Engelhart JU, Lindner BD, Schaffroth M. Bunz UH, et al. Angew Chem Int Ed Engl. 2013 Apr 2;52(14):3810-21. doi: 10.1002/anie.201209479. Epub 2013 Feb 18. Angew Chem Int Ed Engl. 2013. PMID: 23420781
In particular, the Pd-catalyzed coupling of aromatic diamines with activated aromatic dihalogenides has enabled simple access to numerous new azaacenes. Since 2010, azapentacene and stabile oligoazahexacene have been synthesized, as well as a symmetrical tetraazapentacene, …
In particular, the Pd-catalyzed coupling of aromatic diamines with activated aromatic dihalogenides has enabled simple access to numerous ne …
4n pi electrons but stable: N,N-dihydrodiazapentacenes.
Wu JI, Wannere CS, Mo Y, Schleyer Pv, Bunz UH. Wu JI, et al. J Org Chem. 2009 Jun 5;74(11):4343-9. doi: 10.1021/jo900684c. J Org Chem. 2009. PMID: 19438180
Despite having 4n pi electrons, dihydrodiazapentacenes are more viable than their 4n+2 pi azapentacene counterparts. Ab inito valence bond block-localized wave function (BLW) computations reveal that despite having 4n pi electrons, dihydrodiazapentacenes are stabilized and …
Despite having 4n pi electrons, dihydrodiazapentacenes are more viable than their 4n+2 pi azapentacene counterparts. Ab inito valence …
Machine learning for the structure-energy-property landscapes of molecular crystals.
Musil F, De S, Yang J, Campbell JE, Day GM, Ceriotti M. Musil F, et al. Chem Sci. 2017 Dec 12;9(5):1289-1300. doi: 10.1039/c7sc04665k. eCollection 2018 Feb 7. Chem Sci. 2017. PMID: 29675175 Free PMC article.
We discuss, as examples, the lattice energy and property landscapes of pentacene and two azapentacene isomers that are of interest as organic semiconductor materials. ...
We discuss, as examples, the lattice energy and property landscapes of pentacene and two azapentacene isomers that are of interest as …
13 results