David B. Collum

9.6k total citations · 1 hit paper
172 papers, 8.0k citations indexed

About

David B. Collum is a scholar working on Organic Chemistry, Inorganic Chemistry and Spectroscopy. According to data from OpenAlex, David B. Collum has authored 172 papers receiving a total of 8.0k indexed citations (citations by other indexed papers that have themselves been cited), including 162 papers in Organic Chemistry, 36 papers in Inorganic Chemistry and 15 papers in Spectroscopy. Recurrent topics in David B. Collum's work include Coordination Chemistry and Organometallics (133 papers), Asymmetric Synthesis and Catalysis (84 papers) and Chemical Reaction Mechanisms (44 papers). David B. Collum is often cited by papers focused on Coordination Chemistry and Organometallics (133 papers), Asymmetric Synthesis and Catalysis (84 papers) and Chemical Reaction Mechanisms (44 papers). David B. Collum collaborates with scholars based in United States and Japan. David B. Collum's co-authors include Brett L. Lucht, Antonio Ramı́rez, Floyd E. Romesberg, Yun Ma, Evan H. Tallmadge, Laura L. Tomasevich, W. Clark Still, Joseph S. Renny, James H. Gilchrist and Julius F. Remenar and has published in prestigious journals such as Journal of the American Chemical Society, Angewandte Chemie International Edition and Accounts of Chemical Research.

In The Last Decade

David B. Collum

172 papers receiving 7.8k 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.

Method of Continuous Variations: Applications of Job Plots to the Study of Molecular Associations in Organometallic Chemistry

2013 579 citations Joseph S. Renny, Laura L. Tomasevich et al. Angewandte Chemie International Edition profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
David B. Collum United States	52	7.1k	2.1k	1.0k	753	481	172	8.0k
Hans J. Reich United States	50	6.7k 0.9×	1.4k 0.7×	1.3k 1.3×	1.1k 1.5×	570 1.2×	169	8.7k
William D. Wulff United States	54	7.5k 1.1×	1.6k 0.7×	919 0.9×	484 0.6×	279 0.6×	227	8.1k
Pavel Kočovský United Kingdom	49	6.7k 0.9×	2.5k 1.2×	1.6k 1.6×	873 1.2×	349 0.7×	222	7.4k
Peter Beak United States	54	9.2k 1.3×	1.6k 0.8×	1.6k 1.6×	845 1.1×	429 0.9×	217	10.4k
Andrea Mazzanti Italy	50	7.5k 1.1×	1.2k 0.6×	1.1k 1.1×	1.6k 2.1×	468 1.0×	247	8.4k
Robert A. Flowers United States	48	4.5k 0.6×	1.2k 0.6×	906 0.9×	342 0.5×	691 1.4×	148	6.1k
Paul G. Williard United States	42	3.8k 0.5×	1.6k 0.8×	479 0.5×	748 1.0×	639 1.3×	173	5.4k
Christina Moberg Sweden	38	5.2k 0.7×	2.1k 1.0×	1.2k 1.2×	474 0.6×	439 0.9×	203	6.1k
L. Brandsma Netherlands	35	5.6k 0.8×	1.1k 0.5×	660 0.7×	403 0.5×	454 0.9×	359	6.5k
William B. Motherwell United Kingdom	40	5.4k 0.8×	1.1k 0.5×	1.2k 1.2×	307 0.4×	462 1.0×	193	6.4k

Countries citing papers authored by David B. Collum

Since Specialization

Citations

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

Fields of papers citing papers by David B. Collum

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by David B. Collum. 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 David B. Collum. The network helps show where David B. Collum may publish in the future.

Co-authorship network of co-authors of David B. Collum

This figure shows the co-authorship network connecting the top 25 collaborators of David B. Collum. A scholar is included among the top collaborators of David B. Collum 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 David B. Collum. David B. Collum 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

Collum, David B.. (2025). An Accidental Synthetic Chemist. Synthesis. 57(21). 3158–3178. 1 indexed citations

Ma, Yun, et al.. (2024). Sodium Alkyl(trimethylsilyl)amides: Substituent- and Solvent-dependent Solution Structures and Reactivities. Journal of the American Chemical Society. 146(44). 30397–30421. 1 indexed citations

Collum, David B., et al.. (2023). Carbon–Nitrogen Bond Formation Using Sodium Hexamethyldisilazide: Solvent-Dependent Reactivities and Mechanisms. Journal of the American Chemical Society. 145(43). 23568–23584. 11 indexed citations

Ma, Yun, Ryan A. Woltornist, Russell F. Algera, & David B. Collum. (2021). Reactions of Sodium Diisopropylamide: Liquid-Phase and Solid–Liquid Phase-Transfer Catalysis by N,N,N′,N″,N″-Pentamethyldiethylenetriamine. Journal of the American Chemical Society. 143(33). 13370–13381. 21 indexed citations

Collum, David B., et al.. (2020). Structure, Reactivity, and Synthetic Applications of Sodium Diisopropylamide. Synthesis. 52(10). 1478–1497. 35 indexed citations

Ma, Yun, Russell F. Algera, Ryan A. Woltornist, & David B. Collum. (2019). Sodium Diisopropylamide-Mediated Dehydrohalogenations: Influence of Primary- and Secondary-Shell Solvation. The Journal of Organic Chemistry. 84(17). 10860–10869. 15 indexed citations

Reyes‐Rodríguez, Gabriel J., Russell F. Algera, & David B. Collum. (2017). Lithium Hexamethyldisilazide-Mediated Enolization of Acylated Oxazolidinones: Solvent, Cosolvent, and Isotope Effects on Competing Monomer- and Dimer-Based Pathways. Journal of the American Chemical Society. 139(3). 1233–1244. 14 indexed citations

Ma, Yun, Russell F. Algera, & David B. Collum. (2016). Sodium Diisopropylamide in N,N-Dimethylethylamine: Reactivity, Selectivity, and Synthetic Utility. The Journal of Organic Chemistry. 81(22). 11312–11315. 44 indexed citations

Ma, Yun, Matthew S. Sigman, Jun Liang, et al.. (2016). Mixed Aggregates of the Dilithiated Koga Tetraamine: NMR Spectroscopic and Computational Studies. Angewandte Chemie International Edition. 55(34). 10093–10097. 12 indexed citations

10.

Tallmadge, Evan H., et al.. (2015). Structure–Reactivity Relationships in Lithiated Evans Enolates: Influence of Aggregation and Solvation on the Stereochemistry and Mechanism of Aldol Additions. Journal of the American Chemical Society. 138(1). 345–355. 20 indexed citations

11.

Han, Yifeng, Yun Ma, Ivan Keresztes, David B. Collum, & E. J. Corey. (2014). Preferential Geminal Bis-silylation of 3,4-Benzothiophane Is Caused by the Dominance of Electron Withdrawal by R₃Si over Steric Shielding Effects. Organic Letters. 16(17). 4678–4679. 2 indexed citations

12.

Renny, Joseph S., Laura L. Tomasevich, Evan H. Tallmadge, & David B. Collum. (2013). Method of Continuous Variations: Applications of Job Plots to the Study of Molecular Associations in Organometallic Chemistry. Angewandte Chemie International Edition. 52(46). 11998–12013. 579 indexed citations breakdown →

13.

McNeil, Anne J., et al.. (2008). Structures of β-Amino Ester Enolates: New Strategies Using the Method of Continuous Variation. Journal of the American Chemical Society. 130(51). 17334–17341. 20 indexed citations

14.

Collum, David B., Anne J. McNeil, & Antonio Ramı́rez. (2007). Lithium Diisopropylamide: Solution Kinetics and Implications for Organic Synthesis. Angewandte Chemie International Edition. 46(17). 3002–3017. 176 indexed citations

15.

Qu, Bo & David B. Collum. (2006). Mechanism of Acylation of Lithium Phenylacetylide with a Weinreb Amide. The Journal of Organic Chemistry. 71(18). 7117–7119. 36 indexed citations

16.

Collum, David B., et al.. (2003). Lithium Diisopropylamide-Mediated Lithiations of Imines: Insights into Highly Structure-Dependent Rates and Selectivities. Journal of the American Chemical Society. 125(49). 15114–15127. 31 indexed citations

17.

Lucht, Brett L. & David B. Collum. (1995). Ethereal Solvation of Lithium Hexamethyldisilazide: Unexpected Relationships of Solvation Number, Solvation Energy, and Aggregation State. Journal of the American Chemical Society. 117(39). 9863–9874. 106 indexed citations

18.

Romesberg, Floyd E., Max P. Bernstein, James H. Gilchrist, et al.. (1993). Structure of lithium hexamethyldisilazide in the presence of hexamethylphosphoramide. Spectroscopic and computational studies of monomers, dimers, and triple ions. Journal of the American Chemical Society. 115(9). 3475–3483. 87 indexed citations

19.

Michaelides, Elias, et al.. (1988). Lithium-6, carbon-13, and nitrogen-15 NMR spectroscopic studies of lithium dialkylamides. Solution structure of lithium isopropylcyclohexylamide (LICA) in tetrahydrofuran. Journal of the American Chemical Society. 110(8). 2658–2660. 38 indexed citations

20.

Collum, David B., et al.. (1986). Solid-state and solution studies of lithiated 2-carbomethoxycyclohexanone dimethylhydrazone and lithiated cyclohexanone phenylimine. Journal of the American Chemical Society. 108(12). 3415–3422. 69 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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