Gerald A. Segal

7.1k total citations · 4 hit papers
48 papers, 5.8k citations indexed

About

Gerald A. Segal is a scholar working on Atomic and Molecular Physics, and Optics, Spectroscopy and Physical and Theoretical Chemistry. According to data from OpenAlex, Gerald A. Segal has authored 48 papers receiving a total of 5.8k indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Atomic and Molecular Physics, and Optics, 18 papers in Spectroscopy and 10 papers in Physical and Theoretical Chemistry. Recurrent topics in Gerald A. Segal's work include Advanced Chemical Physics Studies (27 papers), Spectroscopy and Quantum Chemical Studies (10 papers) and Atmospheric Ozone and Climate (8 papers). Gerald A. Segal is often cited by papers focused on Advanced Chemical Physics Studies (27 papers), Spectroscopy and Quantum Chemical Studies (10 papers) and Atmospheric Ozone and Climate (8 papers). Gerald A. Segal collaborates with scholars based in United States, United Kingdom and India. Gerald A. Segal's co-authors include John A. Pople, D. P. Santry, Ross W. Wetmore, Howard S. Taylor, Michael L. Klein, H. S. Taylor, Elisheva Goldstein, A. Chutjian, Yang Bai and Vincent McKoy and has published in prestigious journals such as Journal of the American Chemical Society, The Journal of Chemical Physics and The Journal of Physical Chemistry.

In The Last Decade

Gerald A. Segal

48 papers receiving 5.3k citations

Hit Papers

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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.

Approximate Self-Consistent Molecular Orbital Theory. III. CNDO Results for AB2 and AB3 Systems

1966 1.6k citations John A. Pople, Gerald A. Segal The Journal of Chemical Physics profile →
Approximate Self-Consistent Molecular Orbital Theory. I. Invariant Procedures

1965 1.3k citations John A. Pople, D. P. Santry et al. The Journal of Chemical Physics profile →
Approximate Self-Consistent Molecular Orbital Theory. II. Calculations with Complete Neglect of Differential Overlap

1965 876 citations John A. Pople, Gerald A. Segal The Journal of Chemical Physics profile →
Approximate Self-Consistent Molecular Orbital Theory. IV. Calculations on Molecules Including the Elements Sodium through Chlorine

1967 425 citations D. P. Santry, Gerald A. Segal The Journal of Chemical Physics profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Gerald A. Segal United States	27	3.2k	1.9k	1.6k	1.6k	971	48	5.8k
Lionel Goodman United States	38	2.8k 0.9×	2.2k 1.1×	1.3k 0.8×	2.1k 1.4×	980 1.0×	174	5.3k
Leland C. Allen United States	49	3.4k 1.1×	2.3k 1.2×	2.0k 1.3×	1.8k 1.2×	1.7k 1.7×	152	7.7k
Ronald D. Brown Australia	37	3.1k 1.0×	2.8k 1.5×	1.2k 0.7×	986 0.6×	660 0.7×	227	5.7k
Mitsuo Itô Japan	44	4.0k 1.2×	2.9k 1.6×	1.1k 0.7×	2.7k 1.8×	1.2k 1.2×	215	6.6k
R. F. Stewart United States	17	2.9k 0.9×	1.2k 0.6×	1.3k 0.8×	1.4k 0.9×	1.7k 1.8×	34	5.7k
Andrew Komornicki United States	32	3.1k 1.0×	1.5k 0.8×	1.6k 1.0×	1.1k 0.7×	831 0.9×	61	5.2k
Willis B. Person United States	46	3.5k 1.1×	3.3k 1.7×	1.6k 1.0×	2.0k 1.3×	1.3k 1.3×	177	7.6k
Hs. H. Günthard Switzerland	39	3.3k 1.0×	3.4k 1.8×	1.2k 0.7×	1.1k 0.7×	903 0.9×	308	6.4k
Kazutoshi Tanabe Japan	35	2.3k 0.7×	1.7k 0.9×	1.6k 1.0×	1.7k 1.1×	958 1.0×	154	5.4k
R. Zahradník Czechia	30	1.9k 0.6×	1.1k 0.6×	1.7k 1.0×	1.4k 0.9×	821 0.8×	273	4.3k

Countries citing papers authored by Gerald A. Segal

Since Specialization

Citations

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

Fields of papers citing papers by Gerald A. Segal

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gerald A. Segal. 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 Gerald A. Segal. The network helps show where Gerald A. Segal may publish in the future.

Co-authorship network of co-authors of Gerald A. Segal

This figure shows the co-authorship network connecting the top 25 collaborators of Gerald A. Segal. A scholar is included among the top collaborators of Gerald A. Segal 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 Gerald A. Segal. Gerald A. Segal 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

Bai, Yang, Gerald A. Segal, & H. Reisler. (1991). A b i n i t i o calculations of dissociative electronic states of ClCN: Implications to the photodissociation dynamics of the cyanogen halides. The Journal of Chemical Physics. 94(1). 331–340. 6 indexed citations

Segal, Gerald A.. (1990). John Pople: the CNDO and INDO methods. The Journal of Physical Chemistry. 94(14). 5436–5439. 2 indexed citations

Bai, Yang, et al.. (1989). The electronic spectrum of NOCl: Photofragment spectroscopy, vector correlations, and a b i n i t i o calculations. The Journal of Chemical Physics. 90(8). 3903–3914. 68 indexed citations

Bai, Yang & Gerald A. Segal. (1988). Calculated potential energy surfaces for the electronic states of NCNO that dissociate to the products CN(X 2Σ+)+NO(X 2Π). Chemical Physics Letters. 151(1-2). 31–34. 12 indexed citations

Sukumar, N. & Gerald A. Segal. (1986). Effect of aqueous solvation upon the electronic excitation spectrum of the glycine zwitterion: a theoretical CI study using a fractional charge model. Journal of the American Chemical Society. 108(22). 6880–6884. 10 indexed citations

Diamond, James J. & Gerald A. Segal. (1984). Vertical excited states and magnetic circular dichroism spectrum of allene. Journal of the American Chemical Society. 106(4). 952–959. 13 indexed citations

Diamond, James J., Gerald A. Segal, & Ross W. Wetmore. (1984). A program for efficient perturbation configuration interaction. The Journal of Physical Chemistry. 88(16). 3532–3538. 14 indexed citations

Duch, Włodzisław & Gerald A. Segal. (1983). Theoretical calculation of the absorption and magnetic circular dichroism spectrum of a Jahn–Teller distorted excited state: The 1E′ excited state of cyclopropane. The Journal of Chemical Physics. 79(6). 2951–2963. 16 indexed citations

Segal, Gerald A.. (1982). Comment: On the calculation of low lying resonances in dipolar molecules. The Journal of Chemical Physics. 76(4). 2111–2112. 1 indexed citations

10.

Liskow, Dean H. & Gerald A. Segal. (1978). Ab initio theoretical calculations on the circular dichroism spectra of trans-cyclooctene. Journal of the American Chemical Society. 100(10). 2945–2949. 8 indexed citations

11.

Segal, Gerald A. & Ross W. Wetmore. (1975). An efficient method for large scale configuration interaction calculations. Chemical Physics Letters. 32(3). 556–560. 37 indexed citations

12.

Wetmore, Ross W. & Gerald A. Segal. (1975). Efficient generation of configuration interaction matrix elements. Chemical Physics Letters. 36(4). 478–483. 39 indexed citations

13.

Segal, Gerald A.. (1974). Organic transition states. III. Ab initio study of the pyrolysis of cyclobutane via the tetramethylene diradical. Journal of the American Chemical Society. 96(26). 7892–7898. 52 indexed citations

14.

Chutjian, A. & Gerald A. Segal. (1972). Theoretical Interpretation of the Optical and Electron Scattering Spectra of Polyatomic Molecules. III. N2O and the Discovery of Resonant Phenomena in the B Region at 6.8 eV. The Journal of Chemical Physics. 57(8). 3069–3082. 50 indexed citations

15.

Segal, Gerald A.. (1970). Calculation of Wavefunctions for the Excited States of Polyatomic Molecules. The Journal of Chemical Physics. 53(1). 360–370. 31 indexed citations

16.

Segal, Gerald A., et al.. (1970). Theoretical Interpretation of the Electron Scattering Spectrum of CO2. The Journal of Chemical Physics. 52(7). 3387–3398. 92 indexed citations

17.

Buckingham, A. D. & Gerald A. Segal. (1968). Calculation of the Magnetic Rotation Spectrum of NO in the Near Infrared. The Journal of Chemical Physics. 49(4). 1964–1966. 7 indexed citations

18.

Santry, D. P. & Gerald A. Segal. (1967). Approximate Self-Consistent Molecular Orbital Theory. IV. Calculations on Molecules Including the Elements Sodium through Chlorine. The Journal of Chemical Physics. 47(1). 158–174. 425 indexed citations breakdown →

19.

Pople, John A. & Gerald A. Segal. (1966). Approximate Self-Consistent Molecular Orbital Theory. III. CNDO Results for AB2 and AB3 Systems. The Journal of Chemical Physics. 44(9). 3289–3296. 1581 indexed citations breakdown →

20.

Pople, John A., D. P. Santry, & Gerald A. Segal. (1965). Approximate Self-Consistent Molecular Orbital Theory. I. Invariant Procedures. The Journal of Chemical Physics. 43(10). S129–S135. 1349 indexed citations breakdown →

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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