O. L. Chapman

4.4k total citations
87 papers, 3.3k citations indexed

About

O. L. Chapman is a scholar working on Organic Chemistry, Physical and Theoretical Chemistry and Spectroscopy. According to data from OpenAlex, O. L. Chapman has authored 87 papers receiving a total of 3.3k indexed citations (citations by other indexed papers that have themselves been cited), including 53 papers in Organic Chemistry, 25 papers in Physical and Theoretical Chemistry and 14 papers in Spectroscopy. Recurrent topics in O. L. Chapman's work include Oxidative Organic Chemistry Reactions (20 papers), Radical Photochemical Reactions (18 papers) and Various Chemistry Research Topics (14 papers). O. L. Chapman is often cited by papers focused on Oxidative Organic Chemistry Reactions (20 papers), Radical Photochemical Reactions (18 papers) and Various Chemistry Research Topics (14 papers). O. L. Chapman collaborates with scholars based in United States, Canada and Italy. O. L. Chapman's co-authors include Steven A. Kivelson, C. L. McIntosh, Richard King, J. Pacansky, Jerome A. Klun, F. A. L. Anet, Michael E. Squillacote, Robert S. Sheridan, Kenneth C. Mattes and P. W. Wojtkowski and has published in prestigious journals such as Science, Journal of the American Chemical Society and Physical review. B, Condensed matter.

In The Last Decade

O. L. Chapman

87 papers receiving 3.1k citations

Peers

O. L. Chapman

PTC

AMPO

Ernst Bergmann Israel

William Kitching Australia

Jean‐Yves Le Questel France

William S. Johnson United States

Kenneth L. Williamson United States

Shigeru Ohba Japan

Cornelia Bohne Canada

Lowell D. Kispert United States

Lewis N. Mander Australia

P. L. Luisi Switzerland

Ernst Bergmann Israel

O. L. Chapman

1.9k ×1.0

297 ×0.4

PTC

111 ×0.2

AMPO

191 ×0.4

304 ×0.8

Citations per year, relative to O. L. Chapman O. L. Chapman (= 1×) peers Ernst Bergmann

Countries citing papers authored by O. L. Chapman

Since Specialization

Citations

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

Fields of papers citing papers by O. L. Chapman

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by O. L. Chapman. 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 O. L. Chapman. The network helps show where O. L. Chapman may publish in the future.

Co-authorship network of co-authors of O. L. Chapman

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

All Works

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20 of 20 papers shown

Vélez, Maria P., O. L. Chapman, Olga Bougie, et al.. (2024). Endometriosis, Severe Maternal Morbidity, and the Effect of Infertility: Population-Based Cohort Study. Journal of Obstetrics and Gynaecology Canada. 46(8). 102582–102582. 1 indexed citations

Chapman, O. L., et al.. (1981). Acenaphthyne. Journal of the American Chemical Society. 103(23). 7033–7036. 58 indexed citations

Chapman, O. L., et al.. (1980). ChemInform Abstract: SPECTROSCOPIC OBSERVATION OF MATRIX‐ISOLATED SILATOLUENE. Chemischer Informationsdienst. 11(17). 4 indexed citations

Chapman, O. L., et al.. (1980). Spectroscopic observation of matrix-isolated silatoluene. Journal of the American Chemical Society. 102(2). 841–842. 51 indexed citations

Chapman, O. L., Robert S. Sheridan, & Jérôme Leroux. (1979). Photochemical transformations on the C₆H₅N energy surface. Recueil des Travaux Chimiques des Pays-Bas. 98(5). 334–337. 14 indexed citations

Chapman, O. L.. (1979). Photochemistry of diazocompounds and azides in argon. Pure and Applied Chemistry. 51(2). 331–339. 27 indexed citations

Chapman, O. L., et al.. (1978). Photochemical interconversion of phenylnitrene and the isomeric pyridylmethylenes. Journal of the American Chemical Society. 100(19). 6245–6247. 39 indexed citations

Chapman, O. L., et al.. (1976). A general method for the synthesis of reactive .alpha.,.beta.-unsaturated diazomethyl ketones: allenyl diazomethyl ketone and vinyl diazomethyl ketone. The Journal of Organic Chemistry. 41(20). 3326–3327. 15 indexed citations

Chapman, O. L.. (1974). Low temperature photochemical studies. Pure and Applied Chemistry. 40(4). 511–523. 39 indexed citations

10.

Chapman, O. L., C. L. McIntosh, & J. Pacansky. (1973). Photochemical transformations. XLVIII. Cyclobutadiene. Journal of the American Chemical Society. 95(2). 614–617. 130 indexed citations

11.

McIntosh, C. L. & O. L. Chapman. (1971). Spectroscopic observation of o-quinonemethide. Journal of the Chemical Society D Chemical Communications. 771–771. 14 indexed citations

12.

Chapman, O. L., et al.. (1966). Photochemical Studies on 9-Nitroanthracene¹. Journal of the American Chemical Society. 88(23). 5550–5554. 122 indexed citations

13.

Chapman, O. L. & Richard King. (1964). Classification of Alcohols by Nuclear Magnetic Resonance Spectroscopy. Journal of the American Chemical Society. 86(6). 1256–1258. 196 indexed citations

14.

Chapman, O. L., et al.. (1964). Complete Oxidation of Sugars by 1-Methylphenylhydrazine. The Alkazones. Journal of the American Chemical Society. 86(4). 732–733. 9 indexed citations

15.

Chapman, O. L., et al.. (1963). The Structure of α-Lumicolchicine: Some Examples of Diamagnetic Shielding by the Carbon-Oxygen Double Bond. Journal of the American Chemical Society. 85(6). 806–812. 19 indexed citations

16.

Chapman, O. L., et al.. (1963). Photochemical rearrangements of 2-cyclohexenones. Tetrahedron Letters. 4(29). 2049–2055. 23 indexed citations

17.

Chapman, O. L., et al.. (1961). Rearrangement in Borate Pyrolysis. The Journal of Organic Chemistry. 26(11). 4193–4196. 6 indexed citations

18.

Chapman, O. L. & H. G. Smith. (1961). THE STRUCTURE OF α-LUMICOLCHICINE—SOME EXAMPLES OF DIAMAGNETIC SHIELDING BY THE CARBON-OXYGEN DOUBLE BOND. Journal of the American Chemical Society. 83(18). 3914–3916. 11 indexed citations

19.

Chapman, O. L. & Daniel J. Pasto. (1960). Photochemical Transformations of Simple Troponoid Systems. I. Photo-γ-tropolone Methyl Ether¹. Journal of the American Chemical Society. 82(14). 3642–3648. 25 indexed citations

20.

Chapman, O. L. & Daniel J. Pasto. (1959). A Diels-Alder Adduct from γ-Tropolone Methyl Ether. Journal of the American Chemical Society. 81(14). 3696–3697. 4 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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