Edwin F. Ullman

5.6k total citations · 1 hit paper
87 papers, 4.3k citations indexed

About

Edwin F. Ullman is a scholar working on Organic Chemistry, Molecular Biology and Physical and Theoretical Chemistry. According to data from OpenAlex, Edwin F. Ullman has authored 87 papers receiving a total of 4.3k indexed citations (citations by other indexed papers that have themselves been cited), including 40 papers in Organic Chemistry, 25 papers in Molecular Biology and 22 papers in Physical and Theoretical Chemistry. Recurrent topics in Edwin F. Ullman's work include Photochemistry and Electron Transfer Studies (18 papers), Monoclonal and Polyclonal Antibodies Research (13 papers) and Electron Spin Resonance Studies (12 papers). Edwin F. Ullman is often cited by papers focused on Photochemistry and Electron Transfer Studies (18 papers), Monoclonal and Polyclonal Antibodies Research (13 papers) and Electron Spin Resonance Studies (12 papers). Edwin F. Ullman collaborates with scholars based in United States and Nicaragua. Edwin F. Ullman's co-authors include Jeanne H. Osiecki, D. G. B. Boocock, R. Darcy, Richard Schneider, Kenneth E. Rubenstein, Balwant Singh, Ludwig Call, Carl N. Skold, W. A. Henderson and Prithipal Singh and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of the American Chemical Society and Journal of Biological Chemistry.

In The Last Decade

Edwin F. Ullman

87 papers receiving 3.9k citations

Hit Papers

align trajectories

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.

Stable free radicals. X. Nitronyl nitroxide monoradicals and biradicals as possible small molecule spin labels

1972 696 citations Edwin F. Ullman, D. G. B. Boocock et al. Journal of the American Chemical Society profile →

Peers

Edwin F. Ullman

EOMM

BIOPH

Ragnar A. Hoffman Sweden

Koichi Itoh Japan

Peter F. Knowles United Kingdom

M. Paula M. Marques Portugal

Y.K. Levine Netherlands

Richard M. Wing United States

Stefan Berger Germany

John H. Richards United States

James H. Davis Canada

Robert F. Pasternack United States

Ragnar A. Hoffman Sweden

Edwin F. Ullman

653 ×0.5

663 ×0.5

265 ×0.2

EOMM

878 ×0.9

433 ×0.5

BIOPH

Citations per year, relative to Edwin F. Ullman Edwin F. Ullman (= 1×) peers Ragnar A. Hoffman

Countries citing papers authored by Edwin F. Ullman

Since Specialization

Citations

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

Fields of papers citing papers by Edwin F. Ullman

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Edwin F. Ullman. 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 Edwin F. Ullman. The network helps show where Edwin F. Ullman may publish in the future.

Co-authorship network of co-authors of Edwin F. Ullman

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Singh, Sharat & Edwin F. Ullman. (2003). Reversible formation of excited states in intramolecular donor assisted chemiluminescence reactions of dioxetanesElectronic supplementary information (ESI) available: experimental details. See http://www.rsc.org/suppdata/cc/b3/b304245f/. Chemical Communications. 1756–1756. 12 indexed citations

Ullman, Edwin F.. (1999). Homogeneous Immunoassays: Historical Perspective and Future Promise. Journal of Chemical Education. 76(6). 781–781. 12 indexed citations

Skold, Carl N., et al.. (1985). Action of β-galactosidase on novel synthetic macromolecular substrates. A processive enzymic reaction controlled by coulombic interactions. Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology. 830(1). 64–70. 2 indexed citations

Zuk, Robert, et al.. (1985). Enzyme immunochromatography--a quantitative immunoassay requiring no instrumentation.. Clinical Chemistry. 31(7). 1144–1150. 90 indexed citations

Singh, Prithipal, et al.. (1980). Use of (pivaloyloxy)methyl as a protecting group in the synthesis of antigenic theophylline (1,3-dimethylxanthine) derivatives. The Journal of Organic Chemistry. 45(9). 1711–1713. 9 indexed citations

Ullman, Edwin F., et al.. (1976). Fluorescent excitation transfer immunoassay. A general method for determination of antigens.. Journal of Biological Chemistry. 251(14). 4172–4178. 145 indexed citations

Güsten, H. & Edwin F. Ullman. (1976). Notizen: Photolyse und Thermolyse von 2-(α-Diazo-benzyl)-pyridin-1-oxid / Photolysis and Thermolysis of 2- (α-Diazo-benzyl) -pyridine-1-oxide. Zeitschrift für Naturforschung B. 31(7). 1009–1010. 2 indexed citations

Schneider, Richard, et al.. (1973). Homogenous immunochemical drug assays.. PubMed. 39(6). 211–6. 20 indexed citations

Güsten, H. & Edwin F. Ullman. (1970). Chemical sensitization. The chemical initiation of photochemical reactions in the absence of light. Journal of the Chemical Society D Chemical Communications. 0(1). 28b–29. 11 indexed citations

10.

Kopf, Peter W., Robert W. Kreilick, D. G. B. Boocock, & Edwin F. Ullman. (1970). Magnetic resonance studies of polyradicals. II. Nitronyl nitroxide biradicals, nitroxide tri- and tetraradicals. Journal of the American Chemical Society. 92(15). 4531–4535. 18 indexed citations

11.

Ullman, Edwin F., et al.. (1970). New photochemical reactions of α-diketones. Tetrahedron Letters. 11(2). 145–148. 10 indexed citations

12.

Darcy, R. & Edwin F. Ullman. (1969). Stable free radicals. IV. Origin of asymmetry and rate of symmetrization of a spin-labeled .alpha.-sulfonyl carbanion. Journal of the American Chemical Society. 91(4). 1024–1025. 3 indexed citations

13.

Huffman, K. R., M. M. T. Loy, W. A. Henderson, & Edwin F. Ullman. (1968). Photochromic 1,2-dihydro-9-xanthenones. Example of reversible cyclohexadiene hexatriene valence isomerizations. The Journal of Organic Chemistry. 33(9). 3469–3476. 5 indexed citations

14.

Ullman, Edwin F.. (1968). Excited-state intermediates in solution photochemistry. Accounts of Chemical Research. 1(12). 353–359. 26 indexed citations

15.

Huffman, K. R., M. M. T. Loy, W. A. Henderson, & Edwin F. Ullman. (1967). Reversible cyclohexadiene-hexatriene valence isomerizations. A new class of photochromic compounds.. Tetrahedron Letters. 8(10). 931–934. 4 indexed citations

16.

Huffman, K. R. & Edwin F. Ullman. (1967). Photochemical transformations of an o-vinylbenzophenone. Journal of the American Chemical Society. 89(22). 5629–5633. 11 indexed citations

17.

Ullman, Edwin F.. (1963). Photochemical Valence Tautomerization of 2,4,6-Triphenylpyrylium 3-Oxide. Journal of the American Chemical Society. 85(21). 3529–3530. 22 indexed citations

18.

Ullman, Edwin F. & William J. Fanshawe. (1961). Unsaturated Cyclopropanes. III.¹ Synthesis and Properties of Alkylidenecyclopropanes and Spiropentanes. Journal of the American Chemical Society. 83(10). 2379–2383. 48 indexed citations

19.

Ullman, Edwin F.. (1959). Mechanism of Hydrogenation of Unsaturated Cyclopropanes. Journal of the American Chemical Society. 81(20). 5386–5392. 28 indexed citations

20.

Ropp, R. S. de, J. C. Van Meter, E.C. De Renzo, et al.. (1958). THE STRUCTURE AND BIOLOGICAL ACTIVITIES OF HYPOGLYCIN. Journal of the American Chemical Society. 80(4). 1004–1005. 17 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.

Explore authors with similar magnitude of impact