Ilyas Absar

505 total citations
26 papers, 354 citations indexed

About

Ilyas Absar is a scholar working on Atomic and Molecular Physics, and Optics, Organic Chemistry and Physical and Theoretical Chemistry. According to data from OpenAlex, Ilyas Absar has authored 26 papers receiving a total of 354 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Atomic and Molecular Physics, and Optics, 6 papers in Organic Chemistry and 6 papers in Physical and Theoretical Chemistry. Recurrent topics in Ilyas Absar's work include Advanced Chemical Physics Studies (14 papers), Various Chemistry Research Topics (5 papers) and Spectroscopy and Quantum Chemical Studies (4 papers). Ilyas Absar is often cited by papers focused on Advanced Chemical Physics Studies (14 papers), Various Chemistry Research Topics (5 papers) and Spectroscopy and Quantum Chemical Studies (4 papers). Ilyas Absar collaborates with scholars based in Canada, United States and Türkiye. Ilyas Absar's co-authors include John R. Van Wazer, Alan Coleman, Vedene H. Smith, Hans Kummer, H.C. Marsmann, L. J. Schaad, James M. Howell, C. S. Lin, Mark L. Unland and John H. Letcher 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

Ilyas Absar

24 papers receiving 328 citations

Peers

Ilyas Absar

AMPO

SPECT

PTC

C. M. Reeves United Kingdom

Kiyosi O-ohata Japan

Vjera Bonifačić Canada

Michael Hehenberger Sweden

Poul Joergensen Denmark

H. J. Taylor United States

A. Pipano United States

A. Gołębiewski Poland

Harry J. T. Preston United States

T. B. Jones Switzerland

C. M. Reeves United Kingdom

Ilyas Absar

342 ×1.5

AMPO

134 ×1.4

SPECT

60 ×0.7

124 ×1.6

PTC

31 ×0.7

Citations per year, relative to Ilyas Absar Ilyas Absar (= 1×) peers C. M. Reeves

Countries citing papers authored by Ilyas Absar

Since Specialization

Citations

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

Fields of papers citing papers by Ilyas Absar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ilyas Absar

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

Letcher, John H., Ilyas Absar, & John R. Van Wazer. (2009). Use of localized orbitals to circumvent convergence difficulties in lcao-mo-scf calculations. International Journal of Quantum Chemistry. 6(S6). 451–452.

Absar, Ilyas & Alan Coleman. (2009). Reduced hamiltonian orbitals. I. a new approach to the many-electron problem. International Journal of Quantum Chemistry. 10(S10). 319–330. 4 indexed citations

Coleman, Alan & Ilyas Absar. (1980). Reduced hamiltonian orbitals. III. Unitarily invariant decomposition of hermitian operators. International Journal of Quantum Chemistry. 18(5). 1279–1307. 53 indexed citations

Absar, Ilyas & John R. Van Wazer. (1978). Die Verwendung von Elektronendichte-Diagrammen in der Quantenchemie. Angewandte Chemie. 90(2). 86–95. 6 indexed citations

Absar, Ilyas & John R. Van Wazer. (1978). Use of Electron‐Density Plots in Applied Quantum Chemistry. Angewandte Chemie International Edition in English. 17(2). 80–88. 2 indexed citations

Smith, Vedene H. & Ilyas Absar. (1977). I. Basic Concepts of Quantum Chemistry for Electron Density Studies. Israel Journal of Chemistry. 16(2-3). 87–102. 20 indexed citations

Kummer, Hans, Ilyas Absar, & Alan Coleman. (1977). Some aspects of the N-representability problem in finite dimensions. I. Operator endomorphisms which induce necessary conditions. Journal of Mathematical Physics. 18(2). 329–334. 16 indexed citations

Absar, Ilyas & Alan Coleman. (1976). One electron orbitals intrinsic to the reduced hamiltonian. Chemical Physics Letters. 39(3). 609–611. 29 indexed citations

Wazer, John R. Van & Ilyas Absar. (1975). Electron densities in molecules and molecular orbitals. Academic Press eBooks. 9 indexed citations

10.

Absar, Ilyas, et al.. (1972). A Semi-empirical Analysis of the Electronic Spectra and Molecular Structures of Hydrogen Cyanide and Carbon Dioxide. Canadian Journal of Chemistry. 50(5). 653–659. 11 indexed citations

11.

Absar, Ilyas, et al.. (1972). A Semi-empirical Analysis of the Electronic Spectrum and Molecular Structure of Formaldehyde. Canadian Journal of Chemistry. 50(5). 646–652. 5 indexed citations

12.

Absar, Ilyas & John R. Van Wazer. (1972). Rotational Barrier and Electronic Structure of Monomethylphosphine from Ab Initio LCAO–MO–SCF Calculations. The Journal of Chemical Physics. 56(3). 1284–1289. 11 indexed citations

13.

Absar, Ilyas & John R. Van Wazer. (1972). Intermolecular correlation of self-consistent field molecular orbitals. I. Ab initio LCAO-MO-SCF studies of the difluorophosphine and difluorophosphine oxide. Journal of the American Chemical Society. 94(18). 6294–6297. 9 indexed citations

14.

Absar, Ilyas & John R. Van Wazer. (1972). Ab initio LCAO-MO-SCF study of bonding in the simplest phosphorus ylide. Journal of the American Chemical Society. 94(7). 2382–2387. 35 indexed citations

15.

Absar, Ilyas, et al.. (1972). Electronic structure and rotational barrier of diphosphine. Journal of the Chemical Society Faraday Transactions 2 Molecular and Chemical Physics. 68. 799–799. 6 indexed citations

16.

Unland, Mark L., John H. Letcher, Ilyas Absar, & John R. Van Wazer. (1971). The electronic structure of difluoromethane: ab initio studies in several basis sets and semiempirical calculations. Journal of the Chemical Society A Inorganic Physical Theoretical. 1328–1328. 2 indexed citations

17.

Wazer, John R. Van, et al.. (1971). Ab initio LCAO-MO-SCF study of methinophosphide and its relation to hydrogen cyanide. Journal of the American Chemical Society. 93(14). 3320–3325. 30 indexed citations

18.

Wazer, John R. Van & Ilyas Absar. (1971). Ab initio LCAO-MO-SCF study of the phosphoryl fluoride molecule, OPF3. The Journal of Physical Chemistry. 75(10). 1360–1365. 14 indexed citations

19.

Absar, Ilyas & John R. Van Wazer. (1971). The barrier to internal rotation in monomethylphosphine: an ab initio LCAO–MO–SCF study. Journal of the Chemical Society D Chemical Communications. 0(12). 611–612. 8 indexed citations

20.

Absar, Ilyas & John R. Van Wazer. (1971). An approximation for gaussian d-orbital exponents of second-row atoms for LCAO MO SCF studies. Chemical Physics Letters. 11(3). 310–312. 6 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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