Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
One-flask synthesis of meso-substituted dipyrromethanes and their application in the synthesis of trans-substituted porphyrin building blocks
This map shows the geographic impact of Chang‐Hee Lee's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Chang‐Hee Lee with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Chang‐Hee Lee more than expected).
This network shows the impact of papers produced by Chang‐Hee Lee. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Chang‐Hee Lee. The network helps show where Chang‐Hee Lee may publish in the future.
Co-authorship network of co-authors of Chang‐Hee Lee
This figure shows the co-authorship network connecting the top 25 collaborators of Chang‐Hee Lee.
A scholar is included among the top collaborators of Chang‐Hee Lee based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with Chang‐Hee Lee. Chang‐Hee Lee is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Lee, Chang‐Hee, et al.. (2006). Effects of Fruit Drop and Polyembryony of Ardisia pusilla as Influenced by Calcite, Promalin, and 2,4-DP. Horticulture Environment and Biotechnology. 47(2). 93–99.1 indexed citations
10.
Lee, Sang‐Min, Chang‐Hee Lee, & Ki Sun Kim. (2004). Multiplication of Dendranthema zawadskii ssp. latilobum var. leiophyllum through Multiple Shoot Induction from Rhizome-Derived Shoot Tip Culture. Horticulture Environment and Biotechnology. 45(1). 43–48.1 indexed citations
11.
Choi, Young, et al.. (2003). Composition- and Temperature-dependent magnetic structures of the layered manganites La 2-2x Sr 1+2x Mn 2 O 7 (x=0.35 and 0.4). Journal of the Korean Physical Society. 42(4). 522–527.1 indexed citations
Hong, Yeun, et al.. (2001). Optimization of HPLC Method and Clean-up Process for Simultaneous and Systematic Analysis of Synthetic Color Additives in Foods. Korean Journal of Food Science and Technology. 33(1). 33–39.
14.
Lee, Chang‐Hee, et al.. (2000). Convenient Route to Core-modified Corroles by Acid-catalyzed Condensation of Furylpyrromethanes and Dipyrromethanes. Bulletin of the Korean Chemical Society. 21(4). 429–433.19 indexed citations
15.
Lee, Chang‐Hee & Ki Sun Kim. (2000). Genetic Diversity of Chrysanthemum zawadskii Herb. and the Related Groups in Korea Using RAPDs. Horticulture Environment and Biotechnology. 41(3). 230–236.10 indexed citations
16.
Lee, Chang‐Hee, et al.. (2000). Studies of Porphyrin Synthesis through 3+1 Condensation. Bulletin of the Korean Chemical Society. 21(1). 97–100.7 indexed citations
17.
Lee, Chang‐Hee, Han‐Je Kim, & Dae‐Wi Yoon. (1999). Articles Synthesis of Core-Modified Porphyrins and Studies of Their Temperature-dependent Tautomerism. Bulletin of the Korean Chemical Society. 20(3). 276–280.25 indexed citations
Lee, Chang‐Hee, et al.. (1998). KINETICS OF SITE SELECTIVE DEUTERIUM EXCHANGE IN THE SUBSTITUTED PYRROLES AND SYNTHESIS OF PARTIALLY DEUTERATED PORPHYRINS THEREFROM. Bulletin of the Korean Chemical Society. 19(4). 488–491.1 indexed citations
20.
Lee, Chang‐Hee, et al.. (1998). CONVENIENT SYNTHESIS OF DIFURYLMETHANES AND DITHIENYLMETHANES AND THEIR APPLICATION TO THE SYNTHESES OF CORE-MODIFIED PORPHYRINS. Bulletin of the Korean Chemical Society. 19(3). 314–319.22 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.