University of Chicago, U.S.A., Research Ass

University of Chicago

University of Rochester, U.S.A , Visiting Scientist

University of Rochester

IMS, Japan, Visiting Scientist

IMS

Brown University, U.S.A. , Visiting Scientist

Brown University

MIT, Cambridge, MA, U.S.A. , Post-doc. R. A.

MIT

IMS, Japan, Visiting Professor

IMS

University of Oxford, UK, Visiting Professor

University of Oxford

Korea University, Seoul, Korea, Assistant Professor

Korea University

Korea University, Seoul, Korea, Associate Professor

Korea University

Korea University, Seoul, Korea, Full Professor

Korea University

Hyundai-Kia Motor Professor (Korea University)

Korea University

연구원

Massachusetts Institute of Technology

방문연구원

Institute for Molecular Science(Okazaki, Japan)

방문연구원

Brown Univ. USA

방문연구원

Institute for Molecular Science

Chemistry, Seoul National University, Seoul, Korea, BS

Seoul National University

Chemistry, Seoul National University, Seoul, Korea, MS

Seoul National University

Physical Chemistry, University of Chicago, Chicago, IL, U.S.A.

University of Chicago

방문교수

Univ. of California, Berkeley

방문교수

University of Oxford, U.K.

부교수

고려대학교 이과대학 화학과

방문교수

Institute for Molecular Science (Japan)

회원

한국과학기술한림원

국제협력위원

대한화학회

준회원

한국과학기술한림원

회원

American Chemical Society