Roger C. Hahn

424 total citations
26 papers, 305 citations indexed

About

Roger C. Hahn is a scholar working on Organic Chemistry, Physical and Theoretical Chemistry and Electrical and Electronic Engineering. According to data from OpenAlex, Roger C. Hahn has authored 26 papers receiving a total of 305 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Organic Chemistry, 9 papers in Physical and Theoretical Chemistry and 6 papers in Electrical and Electronic Engineering. Recurrent topics in Roger C. Hahn's work include Molecular Junctions and Nanostructures (6 papers), Inorganic and Organometallic Chemistry (5 papers) and Photochemistry and Electron Transfer Studies (5 papers). Roger C. Hahn is often cited by papers focused on Molecular Junctions and Nanostructures (6 papers), Inorganic and Organometallic Chemistry (5 papers) and Photochemistry and Electron Transfer Studies (5 papers). Roger C. Hahn collaborates with scholars based in United States, Canada and Taiwan. Roger C. Hahn's co-authors include Richard P. Johnson, Philip H. Howard, Harold Shechter, Charles W. Jefford, Howard E. Zimmerman, Harry Morrison, M. C. Wani, Marinus B. Groen, Regine Gries and Paul W. Schaefer and has published in prestigious journals such as Journal of the American Chemical Society, Journal of Agricultural and Food Chemistry and The Journal of Organic Chemistry.

In The Last Decade

Roger C. Hahn

26 papers receiving 289 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Roger C. Hahn United States 11 233 60 43 31 30 26 305
G. I. Fray United Kingdom 9 308 1.3× 53 0.9× 65 1.5× 46 1.5× 45 1.5× 50 432
R. W. GANDOUR United States 8 250 1.1× 69 1.1× 29 0.7× 25 0.8× 37 1.2× 8 346
J. Michalski Poland 12 174 0.7× 60 1.0× 34 0.8× 24 0.8× 8 0.3× 47 292
Germany Wiley United States 5 229 1.0× 25 0.4× 58 1.3× 40 1.3× 26 0.9× 5 333
GE Gream Australia 9 226 1.0× 46 0.8× 53 1.2× 33 1.1× 16 0.5× 43 304
Daniel Martina France 14 372 1.6× 27 0.5× 50 1.2× 44 1.4× 30 1.0× 26 429
Margarete Avram Hungary 11 295 1.3× 77 1.3× 56 1.3× 31 1.0× 29 1.0× 25 355
Xue Qin China 15 314 1.3× 99 1.6× 68 1.6× 35 1.1× 20 0.7× 31 496
J. C. POMMELET France 12 295 1.3× 67 1.1× 44 1.0× 26 0.8× 34 1.1× 25 356
Gaetano Barbaro Italy 13 421 1.8× 41 0.7× 88 2.0× 36 1.2× 32 1.1× 39 456

Countries citing papers authored by Roger C. Hahn

Since Specialization
Citations

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

Fields of papers citing papers by Roger C. Hahn

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roger C. Hahn. 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 Roger C. Hahn. The network helps show where Roger C. Hahn may publish in the future.

Co-authorship network of co-authors of Roger C. Hahn

This figure shows the co-authorship network connecting the top 25 collaborators of Roger C. Hahn. A scholar is included among the top collaborators of Roger C. Hahn 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 Roger C. Hahn. Roger C. Hahn 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
1.
Mekala, Shekar & Roger C. Hahn. (2014). A Scalable, Nonenzymatic Synthesis of Highly Stereopure Difunctional C4 Secondary Methyl Linchpin Synthons. The Journal of Organic Chemistry. 80(3). 1610–1617. 4 indexed citations
2.
Gries, Regine, et al.. (2007). Sex Pheromone Components of Indian Gypsy Moth, Lymantria obfuscata. Journal of Chemical Ecology. 33(9). 1774–1786. 3 indexed citations
3.
Gries, Regine, et al.. (2005). (7R,8S)-cis-7,8-EPOXY-2-METHYLOCTADEC-17-ENE: A NOVEL TRACE COMPONENT FROM THE SEX PHEROMONE GLAND OF GYPSY MOTH, Lymantria dispar. Journal of Chemical Ecology. 31(1). 49–62. 13 indexed citations
4.
Khrimian, Ashot, et al.. (2004). Improved Synthesis and Deployment of (2S,3R)-2-(2Z,5Z-Octadienyl)-3-nonyloxirane, a Pheromone of the Pink Moth, Lymantria mathura. Journal of Agricultural and Food Chemistry. 52(10). 2890–2895. 6 indexed citations
5.
Gries, Gerhard, et al.. (1999). Sex Pheromone Components of Casuarina Moth, Lymantria xylina. Journal of Chemical Ecology. 25(11). 2535–2545. 7 indexed citations
6.
Hahn, Roger C.. (1997). Conversion of an Alkyl Chloride to a Bromide (or Vice-Versa) by Homogeneous Nucleophile Exchange. Journal of Chemical Education. 74(7). 836–836. 1 indexed citations
7.
Hahn, Roger C., et al.. (1990). One-pot, one- and multi-carbon homologation of alkyl halides; reaction of grignard reagents with chloroiodomethane. Tetrahedron Letters. 31(7). 937–940. 22 indexed citations
8.
Hahn, Roger C.. (1988). Homogeneous nucleophile exchange. 1. Simple, high-yield synthesis of some heterodihalides. The Journal of Organic Chemistry. 53(6). 1331–1333. 5 indexed citations
9.
Johnson, Richard P., et al.. (1977). A convenient large-scale preparation of benzobarrelene. The Journal of Organic Chemistry. 42(23). 3758–3759. 30 indexed citations
10.
Hahn, Roger C. & Richard P. Johnson. (1977). Effects of a nitro substituent on di-.pi.-methane rearrangements of benzonorbornadiene and its [3.2.1] homolog. Journal of the American Chemical Society. 99(5). 1508–1513. 9 indexed citations
11.
Hahn, Roger C., et al.. (1976). Effects of a remote double bond or cyclopropane ring on electrophilic aromatic substitution. The Journal of Organic Chemistry. 41(11). 2006–2009. 10 indexed citations
12.
Hahn, Roger C. & Richard P. Johnson. (1975). Substituent and multiplicity effects on rearrangements of some benzo[7,8]bicyclo[4.2.1]nona-2,4,7-trienes. Journal of the American Chemical Society. 97(1). 212–213. 9 indexed citations
13.
Hahn, Roger C., et al.. (1974). Ipso nitration. III. Steric effects on extent and consequences. Journal of the American Chemical Society. 96(13). 4337–4339. 5 indexed citations
14.
Hahn, Roger C. & Marinus B. Groen. (1973). Cyclopropylarene chemistry. V. Ipso nitration of an unsymmetrical arene. Selective adduct formation and multistep nitro group migrations. Journal of the American Chemical Society. 95(18). 6128–6129. 10 indexed citations
15.
Hahn, Roger C. & Richard P. Johnson. (1973). A facile entry into the benzo[7,8] bicyclo[4.2.1]nonane system. Tetrahedron Letters. 14(24). 2149–2152. 5 indexed citations
16.
Hahn, Roger C., et al.. (1973). Cyclopropylarene chemistry. IV. Homoketenyl cations in a Friedel-Crafts acylation. Journal of the American Chemical Society. 95(17). 5659–5662. 9 indexed citations
17.
Hahn, Roger C. & Philip H. Howard. (1972). Cyclopropane anisotropy. Effects of systematically varied cyclopropane geometries in aromatic systems. Journal of the American Chemical Society. 94(9). 3143–3148. 15 indexed citations
18.
Hahn, Roger C., et al.. (1969). Cyclopropyl aromatic chemistry. I. Ultraviolet spectra of certain cyclopropyl aromatic systems. Journal of the American Chemical Society. 91(13). 3558–3566. 17 indexed citations
19.
Hahn, Roger C., et al.. (1968). Electrical effects of cycloalkyl groups. Journal of the American Chemical Society. 90(13). 3404–3415. 30 indexed citations
20.
Zimmerman, Howard E., Roger C. Hahn, Harry Morrison, & M. C. Wani. (1965). Mechanistic and Exploratory Photochemistry. XII. Characterization of the Reactivity of the β-Carbon in the Triplet Excited State of α,β-Unsaturated Ketones1. Journal of the American Chemical Society. 87(5). 1138–1140. 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.

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