James Barker

1.1k total citations · 1 hit paper
24 papers, 947 citations indexed

About

James Barker is a scholar working on Organic Chemistry, Inorganic Chemistry and Molecular Biology. According to data from OpenAlex, James Barker has authored 24 papers receiving a total of 947 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Organic Chemistry, 10 papers in Inorganic Chemistry and 3 papers in Molecular Biology. Recurrent topics in James Barker's work include Organometallic Complex Synthesis and Catalysis (6 papers), Chemical Synthesis and Analysis (3 papers) and Ferrocene Chemistry and Applications (3 papers). James Barker is often cited by papers focused on Organometallic Complex Synthesis and Catalysis (6 papers), Chemical Synthesis and Analysis (3 papers) and Ferrocene Chemistry and Applications (3 papers). James Barker collaborates with scholars based in United Kingdom, Germany and United States. James Barker's co-authors include Melvyn Kilner, S. C. Wallwork, P. Phillips, M. G. H. Wallbridge, Nathaniel W. Alcock, W. Errington, Robert O. Gould, Guy J. Clarkson, Eric S. Raper and Peter Scott and has published in prestigious journals such as Coordination Chemistry Reviews, Analytica Chimica Acta and Energy & Fuels.

In The Last Decade

James Barker

21 papers receiving 898 citations

Hit Papers

The coordination chemistry of the amidine ligand 1994 2026 2004 2015 1994 200 400 600
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. The coordination chemistry of the amidine ligand
    1994 638 citations James Barker, Melvyn Kilner Coordination Chemistry Reviews profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
James Barker United Kingdom 12 802 487 132 108 85 24 947
Robert A. Stockland United States 21 1.0k 1.3× 438 0.9× 110 0.8× 147 1.4× 83 1.0× 44 1.1k
Adam J. Clarke United Kingdom 15 573 0.7× 412 0.8× 141 1.1× 105 1.0× 114 1.3× 21 777
Mark H. Schofield United States 12 762 1.0× 359 0.7× 75 0.6× 113 1.0× 53 0.6× 22 886
J. Kickham Canada 15 654 0.8× 382 0.8× 169 1.3× 114 1.1× 102 1.2× 21 785
A. Hamilton United Kingdom 20 760 0.9× 460 0.9× 128 1.0× 98 0.9× 73 0.9× 40 894
Maurits D. Janssen Netherlands 18 739 0.9× 390 0.8× 116 0.9× 90 0.8× 81 1.0× 27 839
Wiechang Jin United States 19 975 1.2× 619 1.3× 168 1.3× 133 1.2× 125 1.5× 25 1.1k
Terence A. Nile United States 16 666 0.8× 372 0.8× 116 0.9× 103 1.0× 61 0.7× 28 814
Miguel A. Casado Spain 19 780 1.0× 487 1.0× 104 0.8× 115 1.1× 73 0.9× 52 934
Jacky Kress France 17 900 1.1× 345 0.7× 103 0.8× 105 1.0× 52 0.6× 38 1.0k

Countries citing papers authored by James Barker

Since Specialization
Citations

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

Fields of papers citing papers by James Barker

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of James Barker

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

All Works

20 of 20 papers shown
1.
Barker, James, et al.. (2026). On Multilevel Energy‐Based Fragmentation Methods. International Journal of Quantum Chemistry. 126(3).
2.
Barker, James, Christoph Thiele, & Pavel Zorin‐Kranich. (2022). Band-Limited Maximizers for a Fourier Extension Inequality on the Circle, II. Experimental Mathematics. 32(2). 280–293. 1 indexed citations
3.
Barker, James, et al.. (2021). Rapid Prescreening of Organic Compounds for Redox Flow Batteries: A Graph Convolutional Network for Predicting Reaction Enthalpies from SMILES. Batteries & Supercaps. 4(9). 1482–1490. 7 indexed citations
4.
Williams, Daryl R., et al.. (2018). Minimization of Energy Wastage in the Electrochemical Recovery of Copper from Its EDTA Complexes in Wastewaters. Research Repository (Kingston University London). 3 indexed citations
5.
Barker, James, et al.. (2015). A multilevel approach to the evolutionary generation of polycrystalline structures. Computational Materials Science. 114. 54–63. 5 indexed citations
6.
Chmel, N.P., Suzanne E. Howson, L.E.N. Allan, et al.. (2010). Organic-soluble optically pure anionic metal complexes PPh4[MIII(S,S-EDDS)]·2H2O (M = Fe, Co, Cr). Dalton Transactions. 39(11). 2919–2919. 14 indexed citations
7.
Barker, James, et al.. (1999). N,N′-Unsubstituted amidinato metallacycle complexes of Group 13 metal alkyls: the crystal structure of trimeric [{Me2Al(μ-HNCPhNH)}3]. Journal of Organometallic Chemistry. 586(2). 138–144. 10 indexed citations
8.
Barker, James, Donald Barr, W. Clegg, et al.. (1997). Lithiated amidines: syntheses and structural characterisations. Journal of the Chemical Society Dalton Transactions. 951–956. 32 indexed citations
9.
Barker, James, et al.. (1997). Metallacycles of the imidoylamidinato compounds HNC(R)NC(R)NH and Group 13 elements. Crystal structure of the complex  [GaMe2{HNC(CF3)NC(CF3 )NH}]. Journal of the Chemical Society Dalton Transactions. 909–910. 16 indexed citations
10.
11.
Barker, James & Melvyn Kilner. (1994). The coordination chemistry of the amidine ligand. Coordination Chemistry Reviews. 133. 219–300. 638 indexed citations breakdown →
12.
Barker, James, et al.. (1994). A study of the reactivity of (methyl 2-acetamidoacrylate)-tricarbonyliron(0) leading to a novel synthesis of β,β,β-trialkyl α-amino acids. Inorganica Chimica Acta. 220(1-2). 137–143. 4 indexed citations
13.
14.
Barker, James, et al.. (1992). Surprising reactivity of (methyl 2-acetamidoacrylate)tricarbonyliron(0) leading to the synthesis of β,β,β-trialkyl α-amino acids. Journal of the Chemical Society Chemical Communications. 830–832. 7 indexed citations
15.
Barker, James, et al.. (1991). Orthometallated amidine complexes of palladium, platinum and nickel(II). Crystal structure of [Pd{p-CH3C6H4NC-(CH3)NHC6H3CH3-p}(η5-C5H5)]. Journal of the Chemical Society Dalton Transactions. 3435–3445. 16 indexed citations
16.
Barker, James, et al.. (1989). Tri-aza analogue of an acetylacetonato-complex formed by nucleophilic attack of a co-ordinated nitrile by amidines. X-Ray crystal structure of [Pt{HNC(Ph)NC(Ph)NH}2]·⅔PhMe. Journal of the Chemical Society Dalton Transactions. 837–841. 24 indexed citations
17.
Barker, James, Melvyn Kilner, & Robert O. Gould. (1987). Synthesis and study of monomeric and dimeric amidine complexes of nickel(II) and platinum(II). Crystal structure of bis(N,N′-diphenylbenzamidino)platinum(II), [Pt{PhNC(Ph)NPh}2]. Journal of the Chemical Society Dalton Transactions. 2687–2694. 30 indexed citations
18.
Barker, James, et al.. (1986). The synthesis, properties, and structure of bis(amidino)-complexes of palladium. The crystal structure of bis(N,N′-di-p-tolylacetamidino)palladium(II). Journal of the Chemical Society Dalton Transactions. 1359–1365. 23 indexed citations
19.
Barker, James, Michael Jones, & Melvyn Kilner. (1985). Amidine mass spectral fragmentation patterns. Organic Mass Spectrometry. 20(10). 619–623. 15 indexed citations
20.
Barker, James & Eric S. Raper. (1981). Complexes of molybdenum hexacarbonyl with imadazolethione molecules. Inorganica Chimica Acta. 53. L177–L179. 11 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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