Peter K. Freeman

2.1k total citations · 1 hit paper
82 papers, 1.6k citations indexed

About

Peter K. Freeman is a scholar working on Organic Chemistry, Physical and Theoretical Chemistry and Spectroscopy. According to data from OpenAlex, Peter K. Freeman has authored 82 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 60 papers in Organic Chemistry, 17 papers in Physical and Theoretical Chemistry and 12 papers in Spectroscopy. Recurrent topics in Peter K. Freeman's work include Oxidative Organic Chemistry Reactions (15 papers), Organic Chemistry Cycloaddition Reactions (12 papers) and Photochemistry and Electron Transfer Studies (11 papers). Peter K. Freeman is often cited by papers focused on Oxidative Organic Chemistry Reactions (15 papers), Organic Chemistry Cycloaddition Reactions (12 papers) and Photochemistry and Electron Transfer Studies (11 papers). Peter K. Freeman collaborates with scholars based in United States and Germany. Peter K. Freeman's co-authors include L. L. HUTCHINSON, Bernd Goldfuß, Haijun Jiao, Paul von Ragué Schleyer, James K. Pugh, V. N. Mallikarjuna Rao, Marvin F. Grostic, Max L. Deinzer, Yury V. Vasil’ev and Valery G. Voinov 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

Peter K. Freeman

80 papers receiving 1.5k citations

Hit Papers

Aromaticity and Antiaromaticity in Five‐Membered C4H4X Ri... 1995 2026 2005 2015 1995 100 200 300 400
What are hit papers?

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.

  1. Aromaticity and Antiaromaticity in Five‐Membered C4H4X Ring Systems: “Classical” and “Magnetic” Concepts May Not Be “Orthogonal”
    1995 417 citations Paul von Ragué Schleyer, Haijun Jiao et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Peter K. Freeman United States 18 1.4k 275 264 137 125 82 1.6k
Sidney I. Miller United States 24 1.1k 0.8× 169 0.6× 272 1.0× 161 1.2× 251 2.0× 102 1.7k
Steinar Husebye Norway 19 790 0.6× 295 1.1× 147 0.6× 237 1.7× 122 1.0× 105 1.5k
Janusz Lusztyk Canada 26 1.7k 1.2× 355 1.3× 499 1.9× 231 1.7× 152 1.2× 50 2.1k
James L. Fry United States 17 849 0.6× 275 1.0× 163 0.6× 110 0.8× 150 1.2× 57 1.2k
Karl Griesbaum Germany 20 1.4k 1.0× 165 0.6× 398 1.5× 133 1.0× 115 0.9× 141 1.8k
Y Okamoto 3 831 0.6× 138 0.5× 279 1.1× 156 1.1× 206 1.6× 3 1.1k
O. A. Reutov Russia 20 1.0k 0.7× 390 1.4× 157 0.6× 118 0.9× 139 1.1× 125 1.3k
Joseph San Filippo United States 24 1.3k 1.0× 558 2.0× 97 0.4× 193 1.4× 168 1.3× 69 1.9k
Stanley J. Cristol United States 23 1.5k 1.1× 225 0.8× 383 1.5× 202 1.5× 234 1.9× 184 1.9k
Dieter Scheutzow Germany 17 760 0.6× 94 0.3× 118 0.4× 120 0.9× 119 1.0× 45 1.1k

Countries citing papers authored by Peter K. Freeman

Since Specialization
Citations

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

Fields of papers citing papers by Peter K. Freeman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Peter K. Freeman. 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 Peter K. Freeman. The network helps show where Peter K. Freeman may publish in the future.

Co-authorship network of co-authors of Peter K. Freeman

This figure shows the co-authorship network connecting the top 25 collaborators of Peter K. Freeman. A scholar is included among the top collaborators of Peter K. Freeman 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 Peter K. Freeman. Peter K. Freeman 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.
Freeman, Peter K., et al.. (2002). The Nature and Role of 8-Deltacyclyl and 7-Isodeltacyclyl Cations in Solvolytic Reactions of Parent Brosylates. The Journal of Organic Chemistry. 67(11). 3742–3748. 3 indexed citations
2.
Freeman, Peter K., et al.. (1998). Differential photohydrodehalogenation reactivity of bromobenzenes (1,2,4-tribromobenzene, 1,2,3,5-tetrabromobenzene) and pentachlorobenzene: sunlight-based remediation. Journal of Chemical Technology & Biotechnology. 72(1). 45–49. 6 indexed citations
3.
Freeman, Peter K.. (1998). Homoaromaticity in Carbene Intermediates. Journal of the American Chemical Society. 120(7). 1619–1620. 16 indexed citations
4.
Schleyer, Paul von Ragué, Peter K. Freeman, Haijun Jiao, & Bernd Goldfuß. (1995). Aromatizität und Antiaromatizität in fünfgliedrigen C4H4X‐Ringsystemen: beschreibbar durch „klassische” und „magnetische” Konzepte. Angewandte Chemie. 107(3). 332–335. 95 indexed citations
5.
Freeman, Peter K., et al.. (1991). Photochemistry of polyhaloarenes. 8. The photodechlorination of pentachlorobenzene. The Journal of Organic Chemistry. 56(11). 3643–3646. 12 indexed citations
6.
Gleicher, Gerald Jay, et al.. (1991). Theoretical models for the reduction of arylmethyl halides by triorganotin hydrides. Journal of Physical Organic Chemistry. 4(8). 485–491. 1 indexed citations
7.
Freeman, Peter K., et al.. (1988). The photochemistry of methyl geranate, a model chromophore for insect juvenile hormone analogs. Tetrahedron. 44(16). 5051–5064. 4 indexed citations
8.
Freeman, Peter K., et al.. (1982). Chemistry of 2-carbenabicyclo[3.2.2]nona-3,6,8-triene. The Journal of Organic Chemistry. 47(11). 2040–2043. 2 indexed citations
9.
Freeman, Peter K. & L. L. HUTCHINSON. (1980). Alkyllithium reagents from alkyl halides and lithium radical anions. The Journal of Organic Chemistry. 45(10). 1924–1930. 227 indexed citations
10.
Freeman, Peter K., et al.. (1978). ChemInform Abstract: REACTIONS OF EXO‐ AND ENDO‐8‐CARBENATRICYCLO(3.2.1.02,4)OCTANE. Chemischer Informationsdienst. 9(14). 6 indexed citations
11.
Freeman, Peter K., et al.. (1976). Radical chlorination of tetracyclo[3.3.0.02,7.04,6]octane and tetracyclo[3.3.0.02,4.03,7]octane with tert-butyl hypochlorite. The Journal of Organic Chemistry. 41(6). 949–952. 2 indexed citations
12.
Freeman, Peter K., et al.. (1971). 5-Norbornenyl- and 2-norbornylcarbene intermediates. The Journal of Organic Chemistry. 36(11). 1554–1558. 4 indexed citations
13.
Freeman, Peter K., et al.. (1969). Photodecomposition of the dianion of tetramethylcyclobutane-1,3-dione bis(p-tosylhydrazone). The Journal of Organic Chemistry. 34(6). 1751–1759. 3 indexed citations
14.
Freeman, Peter K., et al.. (1969). Reactive intermediates in the bicyclo[3.1.0]hexyl and bicyclo[3.1.0]hexylidene systems. V. The reaction of .DELTA.2-cyclopentenylcarbinol with thionyl chloride. The Journal of Organic Chemistry. 34(4). 1175–1176. 1 indexed citations
15.
Freeman, Peter K., et al.. (1968). Method for the addition of the elements of ketene to some selected dienes in Diels-Alder fashion. The Journal of Organic Chemistry. 33(6). 2211–2214. 80 indexed citations
16.
17.
18.
Freeman, Peter K., V. N. Mallikarjuna Rao, & Glen Bigam. (1965). Two novel tetracyclo-octanes. Chemical Communications (London). 511–511. 1 indexed citations
19.
Freeman, Peter K., et al.. (1965). Photoisomerization of endo- and exo-tricyclo[3.2.1.02,4]octene-6. Tetrahedron Letters. 6(37). 3301–3304. 9 indexed citations
20.
Freeman, Peter K., et al.. (1964). Factors Controlling the Reactions of Nortricyclyl and Dehydronorbornyl Chloride with Sodium and with Magnesium. The Journal of Organic Chemistry. 29(7). 1682–1684. 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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