Herbert E. Popkie

2.4k total citations
37 papers, 1.8k citations indexed

About

Herbert E. Popkie is a scholar working on Atomic and Molecular Physics, and Optics, Spectroscopy and Organic Chemistry. According to data from OpenAlex, Herbert E. Popkie has authored 37 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 28 papers in Atomic and Molecular Physics, and Optics, 13 papers in Spectroscopy and 9 papers in Organic Chemistry. Recurrent topics in Herbert E. Popkie's work include Advanced Chemical Physics Studies (24 papers), Spectroscopy and Quantum Chemical Studies (15 papers) and Free Radicals and Antioxidants (6 papers). Herbert E. Popkie is often cited by papers focused on Advanced Chemical Physics Studies (24 papers), Spectroscopy and Quantum Chemical Studies (15 papers) and Free Radicals and Antioxidants (6 papers). Herbert E. Popkie collaborates with scholars based in United States, Canada and Australia. Herbert E. Popkie's co-authors include E. Clementi, H. Kistenmacher, Joyce J. Kaufman, G. C. Lie, W. H. Henneker, J.B. Moffat, R.O. Watts, P. C. Hariharan, W. S. Koski and Carlo Petrongolo and has published in prestigious journals such as Journal of the American Chemical Society, The Journal of Chemical Physics and Annals of the New York Academy of Sciences.

In The Last Decade

Herbert E. Popkie

34 papers receiving 1.7k citations

Peers

Herbert E. Popkie

AMPO

SPECT

PTC

H. Kistenmacher United States

Russell D. Johnson United States

Y. Bouteiller France

Jonathon K. Gregory United Kingdom

D. Steele United Kingdom

William A. Lathan United States

L. Wayne Sieck United States

Amyand David Buckingham United Kingdom

R. E. D. McClung Canada

G. R. Alms United States

H. Kistenmacher United States

Herbert E. Popkie

1.1k ×0.8

AMPO

424 ×0.7

SPECT

284 ×0.7

PTC

232 ×0.9

239 ×0.9

Citations per year, relative to Herbert E. Popkie Herbert E. Popkie (= 1×) peers H. Kistenmacher

Countries citing papers authored by Herbert E. Popkie

Since Specialization

Citations

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

Fields of papers citing papers by Herbert E. Popkie

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Herbert E. Popkie. 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 Herbert E. Popkie. The network helps show where Herbert E. Popkie may publish in the future.

Co-authorship network of co-authors of Herbert E. Popkie

This figure shows the co-authorship network connecting the top 25 collaborators of Herbert E. Popkie. A scholar is included among the top collaborators of Herbert E. Popkie 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 Herbert E. Popkie. Herbert E. Popkie 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

Popkie, Herbert E. & Joyce J. Kaufman. (2009). Test of charge-conserving integral approximations for a variable retention of diatomic differential overlap (vrddo) procedure for semi-Ab Initio molecular orbital calculations on large molecules. International Journal of Quantum Chemistry. 9(S2). 279–288. 1 indexed citations

Popkie, Herbert E. & Joyce J. Kaufman. (2009). Molecular calculations with the MODPOT, VRDDO, and MODPOT/VRDDO procedures. V. Ab initio and MODPOT LCAO-MO-SCF calculations on the chlorofluoromethanes. International Journal of Quantum Chemistry. 12(S11). 433–443. 1 indexed citations

Sokalski, W. Andrzej, P. C. Hariharan, Herbert E. Popkie, Joyce J. Kaufman, & Carlo Petrongolo. (1980). Molecular calculations with the nonempirical ab initioMODPOT, VRDDO, and MODPOT/VRDDO procedures. XI. Theoretical study of the [C₆H₅OH OC₆H₅]⁻ molecular complex: Ab initioMODPOT/VRDDO calculations and electrostatic molecular potential contour maps. International Journal of Quantum Chemistry. 18(1). 173–184. 12 indexed citations

Popkie, Herbert E. & Joyce J. Kaufman. (1977). Molecular calculations with the MODPOT, VRDDO, and MODPOT/VRDDO procedures. IV. Boron hydrides and carboranes. International Journal of Quantum Chemistry. 12(5). 937–961. 9 indexed citations

Popkie, Herbert E. & Joyce J. Kaufman. (1977). Molecular calculations with the VRDDO, MODPOT and MODPOT/VRDDO procedures. MODPOT/SCF + CI calculations to determine electron affinities of alkali metal atoms. Chemical Physics Letters. 47(1). 55–58. 17 indexed citations

Popkie, Herbert E. & Joyce J. Kaufman. (1977). Molecular calculations with the MODPOT, VRDDO, and MODPOT/VRDDO procedures. II. Cyclopentadiene, benzene, diazoles, diazines, and benzonitrile. The Journal of Chemical Physics. 66(11). 4827–4831. 33 indexed citations

Kaufman, Joyce J., Herbert E. Popkie, & Harry J. T. Preston. (1977). Ab‐initio and approximately rigorous calculations on small, medium, and large systems. International Journal of Quantum Chemistry. 11(6). 1005–1015. 13 indexed citations

Kaufman, Joyce J. & Herbert E. Popkie. (1976). Similarity in the pattern per atom‐pair in benzene of contributions to total energy or total overlap populations. International Journal of Quantum Chemistry. 10(3). 543–544. 1 indexed citations

Kistenmacher, H., G. C. Lie, Herbert E. Popkie, & E. Clementi. (1974). Study of the structure of molecular complexes. VI. Dimers and small clusters of water molecules in the Hartree-Fock approximation. The Journal of Chemical Physics. 61(2). 546–561. 198 indexed citations

10.

Kistenmacher, H., Herbert E. Popkie, & E. Clementi. (1974). Study of the structure of molecular complexes. VIII. Small clusters of water molecules surrounding Li+, Na+, K+, F−, and Cl− ions. The Journal of Chemical Physics. 61(3). 799–815. 168 indexed citations

11.

Kistenmacher, H., Herbert E. Popkie, & E. Clementi. (1973). Study of the structure of molecular complexes. III. Energy surface of a water molecule in the field of a fluorine or chlorine anion. The Journal of Chemical Physics. 58(12). 5627–5638. 114 indexed citations

12.

Clementi, E., H. Kistenmacher, & Herbert E. Popkie. (1973). On the SCF-LCAO-MO and the SCF-X α-SW approximations: Computation of the barrier to internal rotation for ethane. The Journal of Chemical Physics. 58(10). 4699–4700. 9 indexed citations

13.

Clementi, E., H. Kistenmacher, & Herbert E. Popkie. (1973). Study of the electronic structure of molecules. XVIII. Interaction between a lithium atom and a cyano group as an example of a polytopic bond. The Journal of Chemical Physics. 58(6). 2460–2466. 89 indexed citations

14.

Kistenmacher, H., Herbert E. Popkie, & E. Clementi. (1973). Study of the structure of molecular complexes. V. Heat of formation for the Li+, Na+, K+, F−, and Cl− ion complexes with a single water molecule. The Journal of Chemical Physics. 59(11). 5842–5848. 187 indexed citations

15.

Clementi, E. & Herbert E. Popkie. (1973). Study of the electronic structure of molecules. Barriers to internal rotation in polynucleotide chains. Chemical Physics Letters. 20(1). 1–4. 14 indexed citations

16.

Clementi, E. & Herbert E. Popkie. (1972). Electronic structure of molecules. XVI. Analysis of the formation of the methane molecule in the Hartree-Fock model. Journal of the American Chemical Society. 94(12). 4057–4068. 47 indexed citations

17.

Clementi, E. & Herbert E. Popkie. (1972). Study of the Structure of Molecular Complexes. I. Energy Surface of a Water Molecule in the Field of a Lithium Positive Ion. The Journal of Chemical Physics. 57(3). 1077–1094. 197 indexed citations

18.

Clementi, E. & Herbert E. Popkie. (1972). Study of the Electronic Structure of Molecules. XVII. Analysis of the Formation of the Acetylene, Ethylene, and Ethane Molecules in the Hartree-Fock Model. The Journal of Chemical Physics. 57(11). 4870–4883. 66 indexed citations

19.

Popkie, Herbert E. & W. H. Henneker. (1971). Theoretical Electronic Transition Probabilities in Diatomic Molecules II. 13-Electron Sequence. The Journal of Chemical Physics. 55(2). 617–628. 26 indexed citations

20.

Popkie, Herbert E. & J.B. Moffat. (1965). A QUANTUM-THEORETICAL STUDY OF SOME AROMATIC NITRILES BY THE SEMIEMPIRICAL LCAO–SCF–MO METHOD. Canadian Journal of Chemistry. 43(3). 624–632. 11 indexed citations

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