Ik‐Hwan Um

3.9k total citations
173 papers, 3.3k citations indexed

About

Ik‐Hwan Um is a scholar working on Organic Chemistry, Physical and Theoretical Chemistry and Molecular Biology. According to data from OpenAlex, Ik‐Hwan Um has authored 173 papers receiving a total of 3.3k indexed citations (citations by other indexed papers that have themselves been cited), including 167 papers in Organic Chemistry, 94 papers in Physical and Theoretical Chemistry and 64 papers in Molecular Biology. Recurrent topics in Ik‐Hwan Um's work include Chemical Reaction Mechanisms (164 papers), Chemical Reactions and Mechanisms (80 papers) and DNA and Nucleic Acid Chemistry (61 papers). Ik‐Hwan Um is often cited by papers focused on Chemical Reaction Mechanisms (164 papers), Chemical Reactions and Mechanisms (80 papers) and DNA and Nucleic Acid Chemistry (61 papers). Ik‐Hwan Um collaborates with scholars based in South Korea, Canada and Japan. Ik‐Hwan Um's co-authors include Erwin Buncel, Young-Hee Shin, Yunho Lee, Jeyong Yoon, Jiyoun Lee, Yuho Tsuno, Mizue Fujio, Sangeun Jeon, Hye-Ran Park and Dong-Sook Kwon and has published in prestigious journals such as Journal of the American Chemical Society, Environmental Science & Technology and Chemical Communications.

In The Last Decade

Ik‐Hwan Um

167 papers receiving 3.1k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Ik‐Hwan Um South Korea 35 2.9k 1.2k 1.1k 906 298 173 3.3k
Krzysztof Bobrowski Poland 32 1.5k 0.5× 747 0.6× 1.1k 1.0× 204 0.2× 144 0.5× 139 2.9k
J. Ramón Leis Spain 29 1.9k 0.7× 620 0.5× 361 0.3× 737 0.8× 112 0.4× 109 2.5k
Peter Wan Canada 33 2.6k 0.9× 1.4k 1.1× 576 0.5× 270 0.3× 45 0.2× 154 3.8k
Rita H. de Rossi Argentina 25 1.2k 0.4× 385 0.3× 372 0.3× 432 0.5× 83 0.3× 130 1.9k
Josefredo R. Pliego Brazil 32 2.1k 0.7× 796 0.6× 369 0.3× 434 0.5× 240 0.8× 130 3.7k
R. A. Abramovitch United States 30 3.1k 1.1× 664 0.5× 731 0.7× 226 0.2× 93 0.3× 272 3.8k
Rudolf Criegee Germany 26 1.9k 0.7× 899 0.7× 326 0.3× 406 0.4× 276 0.9× 97 3.3k
Emilia Iglesias Spain 22 1.2k 0.4× 430 0.4× 285 0.3× 583 0.6× 100 0.3× 83 2.1k
Enrico Baciocchi Italy 35 3.1k 1.1× 695 0.6× 321 0.3× 157 0.2× 43 0.1× 195 4.2k
Edward L. Clennan United States 27 1.9k 0.7× 419 0.3× 301 0.3× 212 0.2× 77 0.3× 127 3.0k

Countries citing papers authored by Ik‐Hwan Um

Since Specialization
Citations

This map shows the geographic impact of Ik‐Hwan Um'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 Ik‐Hwan Um with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ik‐Hwan Um more than expected).

Fields of papers citing papers by Ik‐Hwan Um

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ik‐Hwan Um. 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 Ik‐Hwan Um. The network helps show where Ik‐Hwan Um may publish in the future.

Co-authorship network of co-authors of Ik‐Hwan Um

This figure shows the co-authorship network connecting the top 25 collaborators of Ik‐Hwan Um. A scholar is included among the top collaborators of Ik‐Hwan Um 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 Ik‐Hwan Um. Ik‐Hwan Um is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
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Um, Ik‐Hwan, et al.. (2012). Mechanistic Assessment of SNAr Displacement of Halides from 1-Halo-2,4-dinitrobenzenes by Selected Primary and Secondary Amines: Brønsted and Mayr Analyses. The Journal of Organic Chemistry. 77(21). 9738–9746. 36 indexed citations
4.
Um, Ik‐Hwan, et al.. (2010). Effect of Alkali Metal Ions on Nucleophilic Substitution Reactions of 4-Nitrophenyl X-Substituted Benzoates with Alkali Metal Ethoxides in Anhydrous Ethanol. Bulletin of the Korean Chemical Society. 31(2). 303–308. 10 indexed citations
5.
Um, Ik‐Hwan, Jiyoun Lee, Mizue Fujio, & Yuho Tsuno. (2006). Structure–reactivity correlations in nucleophilic substitution reactions of Y-substituted phenyl X-substituted benzoates with anionic and neutral nucleophiles. Organic & Biomolecular Chemistry. 4(15). 2979–2985. 55 indexed citations
6.
Um, Ik‐Hwan & Erwin Buncel. (2001). Ground-State versus Transition-State Effects on the α-Effect as Expressed by Solvent Effects. Journal of the American Chemical Society. 123(44). 11111–11112. 34 indexed citations
7.
Park, Hee Sun, et al.. (2000). Catalytic Effect of MO4 2- (M=Cr, Mo and W) on Hydrolyses of Carbon and Phosphorus Esters. Bulletin of the Korean Chemical Society. 21(9). 905–908. 8 indexed citations
8.
Um, Ik‐Hwan, et al.. (1999). The effect of solvent on reaction rates and equilibria for the reactions of p-nitrophenyl acetate with alicyclic secondary amines in H2O and DMSO. Bulletin of the Korean Chemical Society. 20(4). 392–394. 6 indexed citations
9.
Um, Ik‐Hwan, et al.. (1999). Kinetics and Mechanism for the Reaction of 4-Nitrophenyl 2-Furoate with Secondary Alicyclic Amines. Bulletin of the Korean Chemical Society. 20(7). 805–808. 1 indexed citations
10.
Um, Ik‐Hwan, et al.. (1997). A KINETIC STUDY FOR THE REACTION OF 2,4-DINITROPHENYL BENZOATE WITH SECONDARY CYCLIC AMINES. Bulletin of the Korean Chemical Society. 18(5). 523–527. 1 indexed citations
11.
Um, Ik‐Hwan, et al.. (1997). A Mechanistic Study for Aminolysis of p-Nitrophenyl Phenylacetate. Bulletin of the Korean Chemical Society. 18(8). 865–868. 2 indexed citations
12.
Kwon, Dong-Sook, Jee-Young Park, & Ik‐Hwan Um. (1994). The Effect of Polarizability on Reactivity of 4-Nitrophenyl Benzoate and Its Sulfur Containing Analogues with Anionic Nucleophiles in Ethanol. Bulletin of the Korean Chemical Society. 15(10). 860–864. 5 indexed citations
13.
Um, Ik‐Hwan, et al.. (1994). The Effects of Solvation and Polarizability on the Reaction of S-p-Nitrophenyl Thiobenzoate with Various Anionic Nucleophiles. Bulletin of the Korean Chemical Society. 15(7). 585–589. 5 indexed citations
14.
Um, Ik‐Hwan, et al.. (1994). The Effect of Alkali Metal Ions on Nucleophilic Substitution Reactions of Aryl Substituted Benzenesulfonates. Bulletin of the Korean Chemical Society. 15(2). 161–167. 1 indexed citations
15.
Um, Ik‐Hwan, et al.. (1993). The Effect of Medium on the $\alpha$-Effect for the Reaction of p-Nitrophenyl Acetate with Benzohyhdroxamates. Bulletin of the Korean Chemical Society. 14(1). 12–14. 1 indexed citations
16.
Kwon, Dong-Sook, Hee Sun Park, & Ik‐Hwan Um. (1991). The Effect of the Changing of C-O-C to C-S-C and C=O to C=S on Reactivity of 4-Nitrophenyl Benzoate with Alkali Metal Ethoxides in Ethanol. Bulletin of the Korean Chemical Society. 12(1). 93–97. 7 indexed citations
17.
Um, Ik‐Hwan, et al.. (1991). A Mechanistic Study on Acyl Transfer Reactions of Aryl Substituted Benzoates Between Aryloxides. Bulletin of the Korean Chemical Society. 12(4). 406–410. 6 indexed citations
18.
Um, Ik‐Hwan, et al.. (1990). Absence of Polarizability Effect on the ${\alpha}$-Effect in Aminolyses of p-Nitrophenyl Acetate and S-p-Nitrophenyl Thioacetate. Bulletin of the Korean Chemical Society. 11(5). 362–364. 14 indexed citations
19.
Kwon, Dong-Sook, et al.. (1990). Reaction Mechanism for Acyl-Transfer Reactions of Aryl Acetates with Aryloxides. Bulletin of the Korean Chemical Society. 11(4). 262–265. 11 indexed citations
20.
Kwon, Dong-Sook, et al.. (1989). The Effect of Polarizability on Reactivity. Bulletin of the Korean Chemical Society. 10(6). 610–611. 3 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.

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