Loading...
2023.05.01 18:22

April 8th (Thu) Graduate Seminar / Professor Minsang Kwon

Atachment
Attachment '1'
?

Shortcut

PrevPrev Article

NextNext Article

+ - Up Down Comment Print
?

Shortcut

PrevPrev Article

NextNext Article

+ - Up Down Comment Print
Extra Form
Speaker Professor Minsang Kwon (Department of Materials Science and Engineering, Seoul National University)
Date Thursday, April 8, 2021
Time 05:00 PM
Venue ZOOM

Purely Organic Photocatalysts for Visible-light Driven

Polymerizations and Organic Reactions

 

 

Due to their broad structural diversity and benign environmental profiles, purely organic PCs provide

attractive alternatives to transition-metal-based catalysts. However, the full potential of organic PCs has not been realized, as the criteria for their design are not well established. Therefore, the development of new transformations using organic PCs is limited to a few organic dyes commonly used for imaging purposes and whose parameters are not straightforwardly tuned through structural alternation.

 

In this talk, we propose a general strategy for the design of purely organic PCs.[1] Strongly twisted donor–acceptor structures are introduced as a general scaffold design for these PCs. The charge transfer (CT) characteristics of the lowest excited states of the designed PCs greatly promote the generation of the lowest triplet excited states (T1) and allow systematic control of the essential catalyst parameters over broad ranges, thereby facilitating efficient catalytic performance. Through combined computational and experimental studies, we provide a flow chart that facilitates the computationally directed rational design of organic PCs for the development of new photoredox-mediated reactions. Based on this strategy, highly efficient organic PCs were discovered that addressed important issues associated with photoredox-mediated atom transfer radical polymerization (ATRP)[1] and reversible addition-fragmentation chain transfer (RAFT)[2].

 

References

1. Singh, V. K., Yu, C., Badgujar, S., Kim, Y., Kwon, Y., Kim, D., Lee, J., Akhter, T., Thangavel, G., Park, L. S., Lee, J., Nandajan, P. C., Wannemacher, R., Milian-Medina, B., Luer, L, Kim, K. S.*, Gierschner, J.* & Kwon, M. S.* “Highly efficient organic photocatalysts discovered via a computer-aided-design strategy for visible-light-driven atom transfer radical polymerization” Nat. Catal. 2018, 1, 794-804

 

 

2. Song, Y.†, Kim, Y.†, Noh, Y., Singh, V. K., Behera, S. K., Abudulimu, A., Chung, K., Wannemacher, R., Gierschner, J., Lüer, L & Kwon, M. S.* “Organic photocatalyst for ppm-level visible-light-driven reversible additionfragmentation chain transfer (RAFT) polymerization with excellent oxygen tolerance” Macromolecules, 2019, 52, 5538-5545


  1. December 2nd (Thu) Graduate Seminar / Prof. Haizheng Zhong

    Prof. Haizheng Zhong (School of Materials Science & Engineering, Beijing Institute of Technology)
    Thursday, December 2, 2021
    Read More
  2. November 25th (Thu) Graduate Seminar / Prof. Kanyi Pu

    Prof. Kanyi Pu (School of Chemical and Biomedical Engineering; School of Physics and Mathematical Science; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore)
    Thursday, November 25, 2021
    Read More
  3. November 18th (Thu) Graduate Seminar / Prof. Dan Zhao

    Prof. Dan Zhao (Department of Chemical and Biomolecular Engineering National University of Singapore)
    Thursday, November 18, 2021
    Read More
  4. November 16th (Tuesday) Graduate Seminar / Professor Jeongmo Choi

    Professor Jeongmo Choi (Busan ​​National University Department of Chemistry)
    Tuesday, November 16, 2021
    Read More
  5. November 11th (Thu) Graduate Seminar / Professor Dalhee Min

    Professor Dalhee Min (Department of Chemistry, Seoul National University)
    Thursday, November 11, 2021
    Read More
  6. November 4th (Thu) Graduate Seminar / Prof. Junpei Kuwabara

    Prof. Junpei Kuwabara (Tsukuba Research Center for Interdisciplinary Materials Science (TREMS), Graduate School of Pure and Applied Sciences, University of Tsukuba)
    Thursday, November 4, 2021
    Read More
  7. October 28th (Thu) Graduate Seminar / Professor Simseong Lee

    Professor Simseong Lee (Gyeongsang National University Department of Chemistry)
    Thursday, October 28, 2021
    Read More
  8. October 21st (Thursday) Graduate Seminar / Professor Lee Min-jae

    Professor Lee Min-jae (Department of Biochemistry, College of Medicine, Seoul National University)
    Thursday, October 21, 2021
    Read More
  9. October 26th (Tue) Graduate School Special Seminar / Kim Jong-hwan Expert

    Kim Jong-hwan Expert (LG Display)
    Tuesday, October 26, 2021
    Read More
  10. September 30th (Thu) Graduate School Seminar / Shim Chang-seop Senior Research Fellow

    Shim Chang-seop Senior Research Fellow (Korea Environment Institute)
    Thursday, September 30, 2021
    Read More
  11. September 23rd (Thu) Graduate Seminar / Professor Gregory C. Welch

    September 23rd (Thu) Graduate Seminar / Professor Gregory C. Welch
    Professor Gregory C. Welch (University of Calgary)
    Read More
  12. September 16th (Thu) Graduate Seminar / Professor Martin Thuo

    Professor Martin Thuo (Departments of Materials Science and Engineering, Electrical and Computer Engineering, Iowa State University)
    Thursday, September 16, 2021
    Read More
  13. June 3rd (Thursday) Graduate Seminar / Professor Yuseong Chung

    Professor Yuseong Chung (KAIST Department of Biochemical Engineering)
    Thursday, June 3, 2021
    Read More
  14. June 9th (Wednesday) Frontliner Invitational Seminar / Kang In-byeong

    Kang In-byeong CTA (LG Display)
    Wed, June 9, 2021
    Read More
  15. May 27th (Thu) Graduate Seminar / Professor Jongseo Kim

    Professor Jongseo Kim (Department of Biochemistry, Seoul National University)
    Thursday, May 27, 2021
    Read More
  16. May 20th (Thursday) Graduate Seminar / Professor Kyung-Gu Lee

    Professor Kyung-Gu Lee (Department of Chemistry, Kunsan National University)
    Thursday, May 20, 2021
    Read More
  17. June 2nd (Wednesday) Graduate School Special Seminar / Professor Changwook Han

    Professor Changwook Han (Department of Chemistry, Korea University)
    Wed, June 2, 2021
    Read More
  18. May 13th (Thu) Graduate Seminar / Professor Sunah Park

    Professor Sunah Park (POSTECH Department of Chemistry)
    Thursday, May 13, 2021
    Read More
  19. May 6th (Thu) Graduate Seminar / Professor Jeong Yong-chul

    Professor Yongcheol Jeong (Busan ​​National University School of Chemical and Biomolecular Engineering)
    Thursday, May 6, 2021
    Read More
  20. April 8th (Thu) Graduate Seminar / Professor Minsang Kwon

    Professor Minsang Kwon (Department of Materials Science and Engineering, Seoul National University)
    Thursday, April 8, 2021
    Read More
Board Pagination ‹ Prev 1 2 3 4 5 6 7 8 Next ›
/ 8

Designed by sketchbooks.co.kr / sketchbook5 board skin

나눔글꼴 설치 안내


이 PC에는 나눔글꼴이 설치되어 있지 않습니다.

이 사이트를 나눔글꼴로 보기 위해서는
나눔글꼴을 설치해야 합니다.

설치 Cancel

Sketchbook5, 스케치북5

Sketchbook5, 스케치북5

Sketchbook5, 스케치북5

Sketchbook5, 스케치북5

Department of Chemistry, Korea University, Tel) +82-2-3290-3120
145 Anam-ro Seongbuk-gu Seoul, 02841, Republic of Korea
Copyright(c) 2014 KOREA UNIVERSITY DEPARTMENT of CHEMISTRY. All right reserved.