D. R. Llewellyn

789 total citations
36 papers, 542 citations indexed

About

D. R. Llewellyn is a scholar working on Organic Chemistry, Spectroscopy and Molecular Biology. According to data from OpenAlex, D. R. Llewellyn has authored 36 papers receiving a total of 542 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Organic Chemistry, 8 papers in Spectroscopy and 5 papers in Molecular Biology. Recurrent topics in D. R. Llewellyn's work include Analytical Chemistry and Chromatography (8 papers), Organophosphorus compounds synthesis (4 papers) and Chemical Reactions and Isotopes (4 papers). D. R. Llewellyn is often cited by papers focused on Analytical Chemistry and Chromatography (8 papers), Organophosphorus compounds synthesis (4 papers) and Chemical Reactions and Isotopes (4 papers). D. R. Llewellyn collaborates with scholars based in United Kingdom, United States and New Zealand. D. R. Llewellyn's co-authors include Clifford A. Bunton, C. A. Vernon, K. G. Oldham, Timothy A. Lewis, Charmian J. OʼConnor, G E Stedman, E. M. Thain, Michael H. Abraham, Alwyn G. Davies and I. Dostrovsky and has published in prestigious journals such as Nature, Analytica Chimica Acta and SAE technical papers on CD-ROM/SAE technical paper series.

In The Last Decade

D. R. Llewellyn

36 papers receiving 480 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
D. R. Llewellyn United Kingdom	13	180	166	84	63	55	36	542
K. Douraghi-Zadeh United Kingdom	7	258 1.4×	226 1.4×	65 0.8×	53 0.8×	68 1.2×	10	696
Bjørn Larsen Norway	15	207 1.1×	129 0.8×	72 0.9×	80 1.3×	27 0.5×	28	820
Robert F. Nystrom United States	14	290 1.6×	182 1.1×	89 1.1×	45 0.7×	75 1.4×	31	715
J. Idris Jones United Kingdom	10	434 2.4×	113 0.7×	70 0.8×	94 1.5×	56 1.0×	25	794
Samuel Sass United States	13	110 0.6×	67 0.4×	129 1.5×	31 0.5×	31 0.6×	44	511
Wendell L. Dilling United States	18	437 2.4×	94 0.6×	86 1.0×	129 2.0×	48 0.9×	49	1.0k
Helge Kjøsen Norway	18	262 1.5×	193 1.2×	62 0.7×	174 2.8×	27 0.5×	55	830
Jack L. Lambert United States	14	117 0.7×	132 0.8×	93 1.1×	67 1.1×	53 1.0×	51	760
David L. Harris United States	17	264 1.5×	252 1.5×	124 1.5×	85 1.3×	106 1.9×	44	882
Gunnel Westöö Sweden	17	92 0.5×	172 1.0×	156 1.9×	36 0.6×	25 0.5×	56	1.5k

Countries citing papers authored by D. R. Llewellyn

Since Specialization

Citations

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

Fields of papers citing papers by D. R. Llewellyn

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by D. R. Llewellyn. 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 D. R. Llewellyn. The network helps show where D. R. Llewellyn may publish in the future.

Co-authorship network of co-authors of D. R. Llewellyn

This figure shows the co-authorship network connecting the top 25 collaborators of D. R. Llewellyn. A scholar is included among the top collaborators of D. R. Llewellyn 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 D. R. Llewellyn. D. R. Llewellyn 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

Qatu, Mohamad S., et al.. (2000). Correlation of Hydraulic Circuit Dynamic Simulation and Vehicle. SAE technical papers on CD-ROM/SAE technical paper series. 1. 10 indexed citations

Qatu, Mohamad S., et al.. (1999). Repeatability of Impedance and Ripple Tests for Automotive Pumps. SAE technical papers on CD-ROM/SAE technical paper series. 1. 3 indexed citations

OʼConnor, Charmian J. & D. R. Llewellyn. (1965). 484. Tracer studies in carboxylic acids. Part IV. Aminoacetic acid. Journal of the Chemical Society (Resumed). 2669–2669. 5 indexed citations

Aggett, J., et al.. (1965). The isotopic analysis of oxygen in organic compounds and in co-ordination compounds containing organic ligands. The International Journal of Applied Radiation and Isotopes. 16(3). 165–170. 14 indexed citations

Llewellyn, D. R. & Charmian J. OʼConnor. (1964). 110. Tracer studies of carboxylic acids. Part I. Acetic and pivalic acid. Journal of the Chemical Society (Resumed). 0(0). 545–549. 12 indexed citations

Bunton, Clifford A., et al.. (1964). 880. The reactivity of co-ordinated oxalated. Part I. Oxygen-18 exchange studies on oxalic acid, the trisoxalatochromium(III) anion, and the trisoxalatocobalt(III) anion. Journal of the Chemical Society (Resumed). 4615–4615. 14 indexed citations

Bunton, Clifford A., D. R. Llewellyn, & G E Stedman. (1959). 116. Oxygen exchange between nitrous acid and water. Journal of the Chemical Society (Resumed). 568–568. 18 indexed citations

Bunton, Clifford A., D. R. Llewellyn, K. G. Oldham, & C. A. Vernon. (1958). 717. The reactions of organic phosphates. Part II. The hydrolysis of α-D-glucose 1-(dihydrogen phosphate). Journal of the Chemical Society (Resumed). 0(0). 3588–3594. 26 indexed citations

Bunton, Clifford A., D. R. Llewellyn, & I. H. Wilson. (1958). 957. Tracer studies on alcohols. Part IV. The oxygen exchange and racemisation of 4-methoxydiphenylmethanol. Journal of the Chemical Society (Resumed). 4747–4747. 3 indexed citations

10.

Bunton, Clifford A., D. R. Llewellyn, K. G. Oldham, & C. A. Vernon. (1958). 716. The reactions of organic phosphates. Part I. The hydrolysis of methyl dihydrogen phosphate. Journal of the Chemical Society (Resumed). 3574–3574. 94 indexed citations

11.

Bunton, Clifford A. & D. R. Llewellyn. (1957). 676. Tracer studies on alcohols. Part II. The exchange of oxygen-18 between sec.-butyl alcohol and water. Journal of the Chemical Society (Resumed). 3402–3402. 11 indexed citations

12.

Abraham, Michael H., Alwyn G. Davies, D. R. Llewellyn, & E. M. Thain. (1957). The chromatographic analysis of organic peroxides. Analytica Chimica Acta. 17. 499–503. 45 indexed citations

13.

Bunton, Clifford A., Timothy A. Lewis, & D. R. Llewellyn. (1956). 254. Tracer studies in the formation and reactions of organic per-acids. Journal of the Chemical Society (Resumed). 1226–1226. 13 indexed citations

14.

Bunton, Clifford A., et al.. (1955). Oxygen exchange and the walden inversion in sec.-butyl alcohol. Journal of the Chemical Society (Resumed). 604–604. 11 indexed citations

15.

Bunton, Clifford A., D. R. Llewellyn, & G E Stedman. (1955). Oxygen Exchange between Nitrous Acid and Water. Nature. 175(4445). 83–84. 15 indexed citations

16.

Bunton, C. A., et al.. (1955). Organic peroxides. Part V. Isotopic tracer studies on the formation and decomposition of organic peroxides. Journal of the Chemical Society (Resumed). 2471–2471. 1 indexed citations

17.

Bunton, Clifford A., et al.. (1953). 541. Oxygen exchange between nitric acid and water. Part III. Catalysis by nitrous acid. Journal of the Chemical Society (Resumed). 2653–2653. 5 indexed citations

18.

Bunton, Clifford A. & D. R. Llewellyn. (1953). 350. Tracer studies in the aquation and hydrolysis of cobalt complexes. Journal of the Chemical Society (Resumed). 1692–1692. 13 indexed citations

19.

Dostrovsky, I., et al.. (1952). 673. The separation of isotopes by fractional distillation. Part II. Determination of parameters from production data. Value of the unit process separation factor for the H₂¹⁶O–H₂¹⁸O system. Journal of the Chemical Society (Resumed). 0(0). 3517–3524. 7 indexed citations

20.

Dostrovsky, I., et al.. (1951). THE SEPARATION OF ISOTOPES BY FRACTIONAL DISTILLATION. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 3 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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