25. Main-group mimics of transition-metal carbonyl redox chemistry
Trends Chem. 2026, DOI: 10.1016/j.trechm.2025.12.002
Juhyeon Shin,ⱡ Seoyeon Lee,ⱡ Hayoung Song*
(ⱡ Equally contributed)
Keyword: N-heterocyclic carbene, small molecule activation
24. Redox-Active Zwitterionic ZCp Ligands for Stable Rh(I)/Ir(I) Complexes and Hyperpolarization Applications
Aust. J. Chem. 2026, DOI: 10.1071/CH25165.
H. Choi, S. Yoo, J. Choi, H. Song, H. J. Jeong, K. Jeong, E. Lee*
Keyword: ligand design, transition metal complex
23. N–H Bond Activation of Ammonia using Intramolecular cAAC-borane Lewis Pairs
H. Song, N. K. Szymczak*
Keyword: N-heterocyclic carbene, small molecule activation, frustrated Lewis pair
22. Air and Thermally Stable Cyclic (Alkyl)(amino)carbene Ruthenium Complexes for Efficient Ring-Expansion Metathesis Polymerization
J. Am. Chem. Soc. 2025, 143, 2571
M. Jang,ⱡ E. Jung,ⱡ Y. Yang, J. Noh, H. Song, H. Kim, H. Kang, S. Choe, T.-L. Choi,* E. Lee*
Keyword: ligand design, transition metal complex, polymerization, N-heterocyclic carbene
21. Lewis Acid-Tethered (cAAC)–Copper Complexes: Reactivity for Hydride Transfer and Catalytic CO2 Hydrogenation
Angew. Chem. Int. Ed. 2024, 63, e202411099.
H. Song, N. K. Szymczak*
Keyword: ligand design, secondary coordination sphere, N-heterocyclic carbene, hydride, transition metal complex
20. Synthesis of sterically congested unsymmetrical 1,2-dicarbonyl radicals through a stepwise approach
Y. Song,ⱡ H. Song,ⱡ Y. Choi, J. Seo* and E. Lee*
(ⱡ Equally contributed)
Keyword: organic radical, N-heterocyclic carbene
19. IZCp and PZCp: Redox Non-innocent Cyclopentadienyl Ligands as Electron Reservoirs for Sandwich Complexes
(Preprinted in ChemRxiv)
H. Choi, S. H. Yoo, H. Song,* E. Lee*
Keyword: ligand design, transition metal complex
18. Theoretical analysis on the formation and nitric oxide release of N-heterocyclic carbene nitric oxide radicals
Bull. Korean Chem. Soc. 2024, 45, 404.
J. Park, H. Song, Y. H. Lee, E. Lee*
Keyword: multiple linear regression, organic radical, N-heterocyclic carbene
17. Formation of Highly Stable 1,2-Dicarbonyl Organic Radicals from Cyclic (Alkyl)(amino)carbenes
(Preprinted in ChemRxiv)
S. Choe,ⱡ H. Song,ⱡ H. Choi, S. Yoo, J. Kim, Y. H. Ko, E. Lee*
(ⱡ Equally contributed)
Highlighted in Chemistry Views
Keyword: organic radical, N-heterocyclic carbene
16. Revisiting the Reaction of IPr with Tritylium: An Alternative Mechanistic Pathway
Chem. Eur. J. 2023, e202203364.
(Preprinted in ChemRxiv)
H. Song, E. Lee*
Keyword: reaction mechanism, N-heterocyclic carbene
15. Design strategy for redox-active organic materials derived from N-heterocyclic carbenes
H. Song, E. Lee*
Keyword: review, battery, N-heterocyclic carbene
14. Persistent Radicals Derived from N-heterocyclic Carbenes for Material Applications
Acc. Chem. Res. 2022, 55, 2213.
H. Song, E. Pietrasiak, E. Lee*
Keyword: review, organic radical, N-heterocyclic carbene
13. Pyrrolinium-substituted Persistent Zwitterionic Ferrocenate Derivative Enabling the Application of Ferrocene Anolyte
ACS Appl. Mater. Interfaces. 2021, 13, 46558.
(Preprinted in ChemRxiv)
H. Song, G. Kwon, C. Citek, S. Jeon, K. Kang*, E. Lee*
Keyword: transition metal complex, ligand design, battery
12. Theoretical Assessment of Dinitrogen Fixation on Carbon Atom
Chem. Asian. J. 2021, 16, 2421.
(Preprinted in ChemRxiv)
H. Song, E. Lee*
Keyword: multiple linear regression, N-heterocyclic carbene, dinitrogen activation
11. Highly Stable 1,2-Dicarbonyl Radical Cations Derived from N-Heterocyclic Carbenes
J. Am. Chem. Soc. 2021, 143, 8527.
(Preprinted in ChemRxiv)
Y. Kim, J. E. Byeon, G. Y. Jeong, S. S. Kim, H. Song, E. Lee*
Supplementary Journal Cover (Link)
Highlighted in Chemistry Views
Keyword: organic radical, N-heterocyclic carbene
10. Excited State Proton Transfer of Quinone Cyanine 9: Implications on the Origin of Super-Photoacidity
C. Lee, S. Chung, H. Song, Y. M. Rhee, E. Lee, T. Joo*
Cover profile: ChemPhotoChem 2021, 5,186.
Keyword: photoacid
9. Indol-2-ylidene (IdY): A New Ambiphilic N-heterocyclic Carbene Derived from Indole
(Preprinted in ChemRxiv)
H. Kim, M. Kim, H. Song,* E. Lee*
Keyword: ligand design, N-heterocyclic carbene
8. Gigantic Porphyrinic Cages
J. Kooⱡ, I. Kimⱡ, Y. Kim, D. Cho, I.-C. Hwang, R. D. Mukhopadhyay, H. Song, A. Dhamija, Y. Ho. Ko, W. Hwang, H. Lee, S. Kim, M.-H. Baik, and K. Kim
Highlighted in Chemistry World
Keyword: organic cage
7. Dinitrogen activation by penta-pyridyl molybdenum complex
Dalton Trans., 2020, 49, 12945.
J. Cha, H. Kwon, H. Song, E. Lee*
Keyword: transition metal complex, dinitrogen activation
6. Tunable Redox-active Triazenyl-Carbene Platforms; a New Class of Anolytes for Non-Aqueous Organic Redox Flow Batteries
ACS Appl. Mater. Interfaces, 2020, 12, 37338.
J.Backⱡ, G. Kwonⱡ, J. E. Byeon, H. Song, K. Kang*, and E. Lee*
Keyword: battery, N-heterocyclic carbene
5. SuFEx in Metal-Organic Frameworks: a Versatile Post-synthetic Modification Tool
ACS Appl. Mater. Interfaces, 2018, 10, 33785.
S. Parkⱡ, H. Songⱡ, C. Kim, K. Kim*, E. Lee*
(ⱡ Equally contributed)
Keyword: sulfur fluoride exchange, metal-organic framework
4. Coumaraz‐2‐on‐4‐ylidene: Ambiphilic N‐Heterocyclic Carbenes with a Tunable Electronic Structure
Angew. Chem. Int. Ed. 2018, 57, 8603.
H. Song*, H. Kim, E. Lee*
Keyword: ligand design, N-heterocyclic carbene
3. An N-heterocyclic Carbene TCNE Zwitterion: Experimental and Theoretical Study on its Formation and Reactivity
Eur. J. Org. Chem. 2017, 1231.
H. Songⱡ, Y. Kimⱡ, J. Park, Y. H. Ko, K. Kim, E. Lee*
(ⱡ Equally contributed)
Keyword: reaction mechanism, N-heterocyclic carbene
2. Activation of Small Molecules at N-Heterocyclic Carbene Centers
H. Song; Y. Kim; J. Park; K. Kim; E. Lee
Keyword: review, N-heterocyclic carbene, small molecule activation
1. N-Heterocyclic Carbene Nitric Oxide Radicals
J. Am. Chem. Soc. 2015, 137, 4642.
J. Parkⱡ, H. Songⱡ, Y. Kimⱡ, B. Eun, Y. Kim, D. Y. Bae, S. Park, Y. M. Rhee, W. J. Kim, K. Kim, E. Lee*
(ⱡ Equally contributed)
Keyword: N-heterocyclic carbene, small molecule activation
N-heterocyclic carbene, its transition metal complexes and method for preparing thereof
Application Number: KR 10-2020-0184621 (2020)
Registration Number: KR 10-2595743 (2023)
E. Lee, H. Song, H. Kim, M. Kim
Novel carbene precursor compound and use thereof
Application Number: KR 10-2018-0029072 (2019)
Registration Number: KR 10-2575592 (2023)
E. Lee, K. Kim, H. Song, H. Kim
New compounds and uses thereof
Application Number: KR 10-2017-0118358 (2017)
Registration Number: KR 10-2044806 (2019)
E. Lee, K. Kim, S. Park, H. Song
N-Heterocyclic carbene metallocene compounds and application of the same
Application Number: KR 10-2016-0134506 (2016)
Registration Number: KR 10-1997692(2019)
E. Lee, K. Kim, H. Song, S. Jeon
Preparation of N-heterocyclic carbene nitric oxide radical and application thereof
Application Number: KR 10-2015-0161748 (2015), WO 2016085224 (2016)
Registration Number: KR 10-1657054 (2016)
E. Lee, K. Kim, J. Park, H. Song, Y. Kim