T. A. Geissman

8.0k total citations · 2 hit papers
150 papers, 5.1k citations indexed

About

T. A. Geissman is a scholar working on Molecular Biology, Cancer Research and Organic Chemistry. According to data from OpenAlex, T. A. Geissman has authored 150 papers receiving a total of 5.1k indexed citations (citations by other indexed papers that have themselves been cited), including 77 papers in Molecular Biology, 56 papers in Cancer Research and 36 papers in Organic Chemistry. Recurrent topics in T. A. Geissman's work include Sesquiterpenes and Asteraceae Studies (55 papers), Plant Toxicity and Pharmacological Properties (35 papers) and Natural product bioactivities and synthesis (22 papers). T. A. Geissman is often cited by papers focused on Sesquiterpenes and Asteraceae Studies (55 papers), Plant Toxicity and Pharmacological Properties (35 papers) and Natural product bioactivities and synthesis (22 papers). T. A. Geissman collaborates with scholars based in United States, Canada and Germany. T. A. Geissman's co-authors include M.A. Irwin, Leonard Jurd, J. D. Edwards, Roger Adams, Jeffrey B. Harborne, W. Stöcklin, Thomas K. Waddell, Bernard O. Phinney, David H. G. Crout and Margaret K. Seikel and has published in prestigious journals such as Nature, Chemical Reviews and Journal of the American Chemical Society.

In The Last Decade

T. A. Geissman

149 papers receiving 4.5k 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.

The chemistry of flavonoid compounds

1962 876 citations T. A. Geissman profile →
Gossypol, a Pigment of Cottonseed.

1960 234 citations Roger Adams, T. A. Geissman et al. Chemical Reviews profile →

Peers

Countries citing papers authored by T. A. Geissman

Since Specialization

Citations

This map shows the geographic impact of T. A. Geissman'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 T. A. Geissman with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites T. A. Geissman more than expected).

Fields of papers citing papers by T. A. Geissman

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by T. A. Geissman. 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 T. A. Geissman. The network helps show where T. A. Geissman may publish in the future.

Co-authorship network of co-authors of T. A. Geissman

This figure shows the co-authorship network connecting the top 25 collaborators of T. A. Geissman. A scholar is included among the top collaborators of T. A. Geissman 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 T. A. Geissman. T. A. Geissman 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

#	Work	Indexed citations
1	Rupicolin-A and -B, rupin-A and -B, and cumambrin-B oxide from Artemisia tripartita ssp. Rupicola 1973 ·Phytochemistry ·M.A. Irwin, T. A. Geissman	42
2	Ridentin-β: An eudesmanolide from Artemisia tripartita ssp. rupicola 1973 ·Phytochemistry ·M.A. Irwin, T. A. Geissman	25
3	Tannins as Gibberellin Antagonists 1972 ·PLANT PHYSIOLOGY ·(unknown), T. A. Geissman, Bernard O. Phinney	48
4	Constituents of Suriana maritima: A triterpene diol of novel structure and a new flavonol glycoside 1971 ·Phytochemistry ·R. E. Mitchell, T. A. Geissman	20
5	Allergic Contact Dermatitis Caused by Artemisia and Chrysanthemum Species 1971 ·Journal of Investigative Dermatology ·John C. Mitchell, T. A. Geissman, Gilles Dupuis, G.H.N. Towers	48
6	Crystal and molecular structure of O-(bromoacetyl)tetrahydrodouglanine, C17H25O4Br 1970 ·Journal of the Chemical Society B Physical Organic ·MAZHAR‐UL‐HAQUE MAZHAR‐UL‐HAQUE, (unknown), Merle T. Emerson, T. A. Geissman, (unknown)	0
7	Circular dichroism and optical rotatory dispersion of sesquiterpene lactones 1970 ·Tetrahedron ·W. Stöcklin, Thomas K. Waddell, T. A. Geissman	119
8	Glaucarubol and glaucarubol-15-isovalerate from Castela nicholsoni 1970 ·Phytochemistry ·W. Stöcklin, T. A. Geissman	3
9	Sesquiterpene lactones of Xanthium species. Xanthanol and isoxanthanol, and correlation of xanthinin with ivalbin 1969 ·The Journal of Organic Chemistry ·(unknown), T. A. Geissman, (unknown)	34
10	Sesquiterpene lactones. Some new constituents of Ambrosia species: A. psilostachya and A. acanthicarpa 1969 ·Phytochemistry ·T. A. Geissman, (unknown), Thomas K. Waddell, (unknown)	15
11	Synthetic proanthocyanidin 1966 ·Tetrahedron Letters ·T. A. Geissman, (unknown)	44
12	Alkaloids of Guatteria psilopus Mart. Guatterine and Atherospermidine 1965 ·The Journal of Organic Chemistry ·William M. Harris, T. A. Geissman	30
13	Flavonoid constituents of Cicer arietinum 1965 ·Phytochemistry ·Edmon Wong, (unknown), T. A. Geissman	40
14	Steroid alkaloids of (Buxaceae) 1964 ·Tetrahedron Letters ·(unknown), T. A. Geissman	6
15	Anthocyanins and Related Compounds. II. Structural Transformations of Some Anhydro Bases 1963 ·The Journal of Organic Chemistry ·Leonard Jurd, T. A. Geissman	35
16	Gossypol, a Pigment of Cottonseed. breakdown → 1960 ·Chemical Reviews ·Roger Adams, T. A. Geissman, J. D. Edwards	234
17	The Rearrangement of 2-Acetyl- and 2-Benzoylcoumarone Oxime p-Toluenesulfonates 1955 ·Journal of the American Chemical Society ·T. A. Geissman, (unknown)	31
18	Anthochlor Pigments. IX. The Structure of the Aurone Pigment of Cosmos sulfureus, “Orange Flare” and “Yellow Flare” 1954 ·Journal of the American Chemical Society ·T. A. Geissman, Leonard Jurd	9
19	Xanthinin: a Plant Growth-regulating Compound from Xanthium pennsylvanicum. I 1954 ·Journal of the American Chemical Society ·T. A. Geissman, (unknown), (unknown), (unknown)	33
20	Chromones. V. The Preparation of 2-Methyl-7-hydroxychromone and 2-Methyl-5,8-dimethoxy-7-hydroxychromone 1951 ·Journal of the American Chemical Society ·T. A. Geissman	5

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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