W. SHUM

1.1k total citations · 1 hit paper
18 papers, 938 citations indexed

About

W. SHUM is a scholar working on Materials Chemistry, Organic Chemistry and Spectroscopy. According to data from OpenAlex, W. SHUM has authored 18 papers receiving a total of 938 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Materials Chemistry, 5 papers in Organic Chemistry and 5 papers in Spectroscopy. Recurrent topics in W. SHUM's work include Polyoxometalates: Synthesis and Applications (10 papers), Analytical Chemistry and Chromatography (4 papers) and Catalysis and Oxidation Reactions (4 papers). W. SHUM is often cited by papers focused on Polyoxometalates: Synthesis and Applications (10 papers), Analytical Chemistry and Chromatography (4 papers) and Catalysis and Oxidation Reactions (4 papers). W. SHUM collaborates with scholars based in United States and France. W. SHUM's co-authors include W. G. Klemperer, M. Filowitz, Row Kyung Ho, Jian Chen, Victor W. Day, M. F. FREDRICH, Louis Messerle, William G. Dougherty, D. P. Leta and Gilbert E. Janauer and has published in prestigious journals such as Journal of the American Chemical Society, The Science of The Total Environment and Inorganic Chemistry.

In The Last Decade

W. SHUM

18 papers receiving 883 citations

Hit Papers

Oxygen-17 nuclear magnetic resonance spectroscopy of poly... 1979 2026 1994 2010 1979 100 200 300
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. Oxygen-17 nuclear magnetic resonance spectroscopy of polyoxometalates. 1. Sensitivity and resolution
    1979 398 citations M. Filowitz, Row Kyung Ho et al. Inorganic Chemistry profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
W. SHUM United States 12 742 609 214 105 77 18 938
Michael Ardon Israel 19 329 0.4× 452 0.7× 386 1.8× 55 0.5× 40 0.5× 49 966
Said A. Ibrahim Egypt 15 381 0.5× 309 0.5× 293 1.4× 149 1.4× 38 0.5× 28 792
A. Yagasaki Japan 18 865 1.2× 785 1.3× 280 1.3× 115 1.1× 23 0.3× 57 1.0k
Shivaiah Vaddypally United States 16 546 0.7× 613 1.0× 263 1.2× 58 0.6× 39 0.5× 44 869
Keiko Noda Japan 9 428 0.6× 433 0.7× 548 2.6× 65 0.6× 40 0.5× 15 961
C. Djordjević United States 18 524 0.7× 731 1.2× 303 1.4× 68 0.6× 26 0.3× 53 1.1k
R.S. Downing Netherlands 14 759 1.0× 653 1.1× 952 4.4× 38 0.4× 40 0.5× 20 1.5k
Guangdi Yang China 17 496 0.7× 525 0.9× 169 0.8× 50 0.5× 43 0.6× 30 804
Barbara Modec Slovenia 20 573 0.8× 724 1.2× 448 2.1× 33 0.3× 72 0.9× 79 1.1k
Bruce O. West Australia 17 343 0.5× 403 0.7× 257 1.2× 22 0.2× 41 0.5× 43 737

Countries citing papers authored by W. SHUM

Since Specialization
Citations

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

Fields of papers citing papers by W. SHUM

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by W. SHUM. 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 W. SHUM. The network helps show where W. SHUM may publish in the future.

Co-authorship network of co-authors of W. SHUM

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

All Works

18 of 18 papers shown
1.
Taton, Daniel, Alain Le Borgne, Jian Chen, & W. SHUM. (1998). Synthesis of racemic and optically active glycidic ethers, precursors of liquid crystalline polyethers. Chirality. 10(9). 779–785. 8 indexed citations
2.
SHUM, W. & Jian Chen. (1996). Synthesis and structural characterization of enantiopure levodropropizine. Chirality. 8(1). 6–10. 6 indexed citations
3.
Ananth, Ramagopal, Jian Chen, & W. SHUM. (1995). Optical purification of chiral glycidyl arenesulfonates. Tetrahedron Asymmetry. 6(2). 317–320. 3 indexed citations
4.
Chen, Jian & W. SHUM. (1995). A practical synthetic route to enantiopure 3-aryloxy-1,2-propanediols from chiral glycidol. Tetrahedron Letters. 36(14). 2379–2380. 39 indexed citations
5.
6.
Chen, Jian & W. SHUM. (1993). A direct HPLC method for the determination of enantiomeric excess of some highly enantiomerically enriched derivatives of chiral glycidols. Tetrahedron Letters. 34(48). 7663–7666. 5 indexed citations
7.
Dougherty, William G., et al.. (1990). A convenient gas chromatographic method for the optical purity determination of chiral epoxy alcohols. Tetrahedron Letters. 31(31). 4389–4390. 21 indexed citations
8.
9.
Filowitz, M., Row Kyung Ho, W. G. Klemperer, & W. SHUM. (1979). Oxygen-17 nuclear magnetic resonance spectroscopy of polyoxometalates. 1. Sensitivity and resolution. Inorganic Chemistry. 18(1). 93–103. 398 indexed citations breakdown →
10.
Klemperer, W. G. & W. SHUM. (1979). Synthesis and17O n.m.r. structure determination of a η-cyclopentadienyl titanomolybdate, [(η-C5H5)Ti(Mo5O18)]3–. Journal of the Chemical Society Chemical Communications. 60–61. 15 indexed citations
11.
Filowitz, M., W. G. Klemperer, & W. SHUM. (1978). Synthesis and characterization of the pentamolybdate ion, Mo5O17H3-. Journal of the American Chemical Society. 100(8). 2580–2581. 18 indexed citations
12.
Klemperer, W. G. & W. SHUM. (1978). Isomerism and charge distribution in mixed-metal polyoxoanion clusters: oxygen-17 nuclear magnetic resonance structure determinations of cis-V2W4O194- and cis-HV2W4O193-. Journal of the American Chemical Society. 100(15). 4891–4893. 42 indexed citations
13.
Pankow, James F., et al.. (1977). Analysis for chromium traces in the aquatic ecosystem II. A study of Cr(III) and Cr(VI) in the susquehanna river basin of New York and Pennsylvania. The Science of The Total Environment. 7(1). 17–26. 22 indexed citations
14.
Klemperer, W. G. & W. SHUM. (1977). Charge distribution in large polyoxoanions: determination of protonation sites in vanadate (V10O286-)by oxygen-17 nuclear magnetic resonance. Journal of the American Chemical Society. 99(10). 3544–3545. 70 indexed citations
15.
Day, Victor W., M. F. FREDRICH, W. G. Klemperer, & W. SHUM. (1977). Synthesis and characterization of the dimolybdate ion, Mo2O72-. Journal of the American Chemical Society. 99(18). 6146–6148. 66 indexed citations
16.
Klemperer, W. G. & W. SHUM. (1976). Synthesis and interconversion of the isomeric .alpha.- and .beta.-molybdate (Mo8O264-) ions. Journal of the American Chemical Society. 98(25). 8291–8293. 150 indexed citations
17.
Filowitz, M., W. G. Klemperer, Louis Messerle, & W. SHUM. (1976). An oxygen-17 nuclear magnetic resonance chemical shift scale for polyoxomolybdates. Journal of the American Chemical Society. 98(8). 2345–2346. 45 indexed citations
18.
English, A. D., J. P. Jesson, W. G. Klemperer, et al.. (1975). Solution structures of large Group 5A and 6A polyoxoanions by oxygen-17 nuclear magnetic resonance. Journal of the American Chemical Society. 97(16). 4785–4786. 18 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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