Events
Date 30 Aug 2024
Time 5:00 pm - 6:00 pm (HKT)
Venue Lecture Theatre P4, Chong Yuet Ming Physics Building
Speaker Prof. Junzhi LIU
Institution Department of Chemistry,
The University of Hong Kong
Self Photos / Files - Prof. Junzhi Liu Seminar Poster
 
Title:
Toward the Synthesis of Pentaheptite Nanostructures
 
Schedule:
Date: 30th August, 2024 (Friday)
Time: 5 - 6 pm (HKT)
 
Venue: Lecture Theatre P4, Chong Yuet Ming Physics Building
 
Speaker:
Prof. Junzhi LIU
 
Department of Chemistry
The University of Hong Kong
 
Biography:
Dr. Junzhi Liu received his bachelor’s degree in Materials Chemistry in 2008 and master’s degree in Materials Science in 2011. Then he joined the Max Planck Institute for Polymer Research for PhD thesis, where he obtained his PhD degree in Synthetic Chemistry in 2016. After his Ph.D., he stayed at the Technische Universität Dresden (TU Dresden) as a postdoctoral fellow, and later as a research group leader at the Chair for Molecular Functional Materials in TU Dresden. In August 2019, Dr. Liu started his group at the Department of Chemistry in The University of Hong Kong. His current scientific interests include bottom-up organic synthesis of topological nanocarbons and their applications in organic electronics. Specific research topics include nanocarbons with nonalternant topologies, atomically precise synthesis of 3D nanocarbons, and supramolecular chemistry.
 
Dr. Liu has been awarded several prizes since joining HKU, such as Asian Core Program Lectureship Award (2023); Outstanding Young Researcher Award (HKU, 2023); Small "Rising Star" (Wiley-VCH, 2022); ChemComm "Emerging Investigator" (RSC, 2022); NSFC Excellent Young Scientists Award (2021); RGC Early Career Award (2020); etc. Dr. Liu is served as the Editorial Board for Chinese Journal of Chemistry (2024-), Advisory Board for Organic Materials (2023-), and Early Career Advisory Board (ECAB) for Chemistry – An Asian Journal (2020-).
 

Abstract:

The pursuit of novel carbon allotropes has long continued in synthetic chemistry and materials science, and graphene has been the most well-investigated carbon nanostructure in the past decade. However, an analogous carbon pentaheptite with equal numbers of pentagons and heptagons has not yet been synthesized due to the challenges in the design and synthesis of nonhexagon motifs along two dimensions.[1-10] In this talk, I will present our efforts in synthesizing pentaheptite nanostructures. First, I will introduce the bottom-up organic synthesis of graphene molecules with non-alternant topologies, e.g. seven-five-seven-membered rings (7-5-7) and four continuous heptagons. In contrast to the successes achieved with varied nanographenes with non-alternant topologies, we also try to the development of facile and effective methods to synthesize lovely molecules bearing N-doped nonhexagons, including pentagon-heptagon pairs and pentagon-octagon pairs. Second, toward the synthesis of pentaheptite nanostructures will be introduced from our perspective.

 

References:

[1] Yu, Y.; Wang, C.; Hung, F.-F.; Chen, C.; Pan, D.; Che, C.-M.; Liu, J.* J. Am. Chem. Soc. 2024, 146, 22600. (Editors' Choice)

[2] Luo, H.; Liu, J.* Angew. Chem. Int. Ed. 2024, 63, e202410759.

[3] Qiu, S.; Valdivia, A.C.; Zhuang, W.; Hung, F.-F.; Che, C.-M.; Casado, J.*; Liu, J.* J. Am. Chem. Soc. 2024, 146, 16161. (Featured as Supplementary Cover).

[4] Wang, C.; Deng, Z.; Phillips, D.L.; Liu, J.* Angew. Chem. Int. Ed. 2023, 62, e202306890.

[5] Wang, J.; Zheng, A.; Xiang, Y.; Liu, J.* J. Am. Chem. Soc. 2023, 145, 14912. (Featured as Supplementary Cover).

[6] Luo, H.; Liu, J.* Angew. Chem. Int. Ed. 2023, 62, e202302761 (Highlighted by Synfacts).

[7] Yu, Y.; Wang, L.; Lin, D.; Rana, S.; Mali, K. S.; Ling, H.*; Xie, L.; De Feyter, S.; Liu, J.* Angew. Chem. Int. Ed. 2023, 62, e202303335.

[8] Wang, J.; Gámez, F. G.; Marín-Beloqui, J.; Diaz-Andres, A.; Miao, X.; Casanova, D.; Casado, J. *; Liu, J.* Angew. Chem. Int. Ed. 2023, 62, e202217124. (Featured as Front Cover, Highlighted by Synfacts).

[9] Wang, J.; Ju, Y. Y.; Low, K. H.; Tan, Y. Z.; Liu, J.* Angew. Chem. Int. Ed. 2021, 60, 11814.

[10] Fei, Y.; Fu, Y.; Bai, X.; Du, L.; Li, Z.; Komber, H.; Low, K. H.; Zhou, S.; Phillips, D. L.; Feng, X.; Liu, J.* J. Am. Chem. Soc. 2021, 143, 2353.

 

 
- - ALL ARE WELCOME --