R. McWeeny

11.2k total citations · 3 hit papers
93 papers, 8.3k citations indexed

About

R. McWeeny is a scholar working on Atomic and Molecular Physics, and Optics, Physical and Theoretical Chemistry and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, R. McWeeny has authored 93 papers receiving a total of 8.3k indexed citations (citations by other indexed papers that have themselves been cited), including 58 papers in Atomic and Molecular Physics, and Optics, 29 papers in Physical and Theoretical Chemistry and 26 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in R. McWeeny's work include Advanced Chemical Physics Studies (56 papers), Advanced Physical and Chemical Molecular Interactions (19 papers) and Spectroscopy and Quantum Chemical Studies (17 papers). R. McWeeny is often cited by papers focused on Advanced Chemical Physics Studies (56 papers), Advanced Physical and Chemical Molecular Interactions (19 papers) and Spectroscopy and Quantum Chemical Studies (17 papers). R. McWeeny collaborates with scholars based in United Kingdom, Italy and United States. R. McWeeny's co-authors include Brian T. Sutcliffe, Geerd H. F. Diercksen, Barry T. Pickup, Yuki Mizuno, Thomas Peacock, P. F. Bernath, Stephen Wilson, Ian L. Cooper, C. A. Coulson and Martin Klessinger and has published in prestigious journals such as Nature, The Journal of Chemical Physics and Reviews of Modern Physics.

In The Last Decade

R. McWeeny

93 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.

Methods of Molecular Quantum Mechanics

1971 1.2k citations R. McWeeny, Brian T. Sutcliffe et al. profile →
Some Recent Advances in Density Matrix Theory

1960 1.1k citations R. McWeeny profile →
Perturbation Theory for the Fock-Dirac Density Matrix

1962 719 citations R. McWeeny profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
R. McWeeny United Kingdom	41	5.4k	2.1k	1.9k	1.8k	1.6k	93	8.3k
Clemens Roothaan United States	20	6.9k 1.3×	2.1k 1.0×	1.6k 0.8×	2.1k 1.1×	1.7k 1.1×	33	9.8k
Per‐Olov Löwdin Sweden	38	9.2k 1.7×	2.5k 1.2×	1.1k 0.6×	1.9k 1.0×	1.9k 1.2×	115	12.1k
C. A. Coulson Slovakia	46	4.1k 0.8×	1.6k 0.8×	1.6k 0.8×	1.3k 0.7×	1.7k 1.0×	208	7.3k
Gerald A. Segal United States	27	3.2k 0.6×	1.6k 0.7×	1.6k 0.8×	1.9k 1.0×	971 0.6×	48	5.8k
David M. Bishop Canada	50	6.1k 1.1×	1.2k 0.6×	1.1k 0.6×	2.3k 1.3×	1.6k 1.0×	248	8.6k
J.N. Murrell United Kingdom	53	7.6k 1.4×	3.1k 1.5×	3.0k 1.6×	3.6k 2.0×	2.5k 1.5×	311	12.9k
Delano P. Chong Canada	36	5.1k 1.0×	1.8k 0.9×	1.4k 0.7×	1.4k 0.8×	1.8k 1.1×	222	7.4k
Roger D. Amos United Kingdom	50	5.9k 1.1×	1.9k 0.9×	1.6k 0.8×	3.1k 1.7×	1.6k 1.0×	138	8.5k
Leland C. Allen United States	49	3.4k 0.6×	1.8k 0.9×	2.0k 1.0×	2.3k 1.2×	1.7k 1.0×	152	7.7k
Klaus Ruedenberg United States	55	8.4k 1.6×	3.6k 1.7×	2.7k 1.4×	2.5k 1.4×	2.1k 1.3×	196	11.9k

Countries citing papers authored by R. McWeeny

Since Specialization

Citations

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

Fields of papers citing papers by R. McWeeny

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R. McWeeny

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Kerner, Hannah, et al.. (2024). How accurate are existing land cover maps for agriculture in Sub-Saharan Africa?. Scientific Data. 11(1). 486–486. 18 indexed citations

Wilson, Stephen, P. F. Bernath, & R. McWeeny. (2003). Molecules in the physico-chemical environment : spectroscopy, dynamics and bulk properties. Wiley eBooks. 1 indexed citations

Wilson, Stephen, P. F. Bernath, & R. McWeeny. (2003). Molecular electronic structure. Wiley eBooks. 35 indexed citations

Wilson, Stephen, P. F. Bernath, & R. McWeeny. (2003). Handbook of molecular physics and quantum chemistry. CERN Document Server (European Organization for Nuclear Research). 156 indexed citations

McWeeny, R., et al.. (1973). The calculation of spin-orbit splitting and g tensors for small molecules and radicals. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 332(1590). 365–384. 54 indexed citations

McWeeny, R.. (1973). Quantum mechanics : methods and basic applications. Pergamon Press eBooks. 17 indexed citations

Dacre, Peter D. & R. McWeeny. (1970). The interaction of two electronic systems at short and medium range. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 317(1530). 435–454. 36 indexed citations

McWeeny, R. & Werner Kutzelnigg. (1968). Symmetry properties of natural orbitals and geminals I. Construction of spin‐ and symmetry‐adapted functions. International Journal of Quantum Chemistry. 2(2). 187–203. 58 indexed citations

McWeeny, R. & Brian T. Sutcliffe. (1963). The density matrix in may-electron quantum mechanics III. Generalized product functions for beryllium and four-electron ions. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 273(1352). 103–116. 93 indexed citations

10.

McWeeny, R.. (1963). Symmetry : an introduction to group theory and its applications. CERN Document Server (European Organization for Nuclear Research). 109 indexed citations

11.

McWeeny, R. & Yuki Mizuno. (1961). The density matrix in many-electron quantum mechanics II. Separation of space and spin variables; spin coupling problems. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 259(1299). 554–577. 170 indexed citations

12.

McWeeny, R., et al.. (1960). A quantum-mechanical study of the water molecule. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 255(1282). 367–381. 90 indexed citations

13.

McWeeny, R.. (1959). The density matrix in many-electron quantum mechanics I. Generalized product functions. Factorization and physical interpretation of the density matrices. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 253(1273). 242–259. 318 indexed citations

14.

McWeeny, R.. (1957). The density matrix in self-consistent field theory - III. Generalizations of the theory. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 241(1225). 239–256. 34 indexed citations

15.

McWeeny, R.. (1956). The density matrix in self-consistent field theory II. Applications in the molecular orbital theory of conjugated systems. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 237(1210). 355–371. 44 indexed citations

16.

McWeeny, R.. (1956). The density matrix in self-consistent field theory I. Iterative construction of the density matrix. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 235(1203). 496–509. 162 indexed citations

17.

McWeeny, R., et al.. (1955). On the basis of orbital theories. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 232(1188). 114–135. 96 indexed citations

18.

McWeeny, R.. (1955). The valence-bond theory of molecular structure - III. Cyclo butadiene and benzene. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 227(1170). 288–312. 83 indexed citations

19.

McWeeny, R.. (1954). The valence-bond theory of molecular structure II. Reformulation of the theory. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 223(1154). 306–323. 61 indexed citations

20.

McWeeny, R.. (1954). The valence bond theory of molecular structure - I. Orbital theories and the valence-bond method. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 223(1152). 63–79. 100 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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