Ilyas Absar

505 citations

26 papers · 354 indexed · h-index 11

Atomic and Molecular Physics, and Optics top 10%
Spectroscopy top 10%
Organic Chemistry
Physical and Theoretical Chemistry top 5%
Inorganic Chemistry

Co-authors: John R. Van Wazer Alan Coleman Vedene H. Smith Hans Kummer H.C. Marsmann L. J. Schaad James M. Howell C. S. Lin
Topics: Advanced Chemical Physics Studies (14 papers)Various Chemistry Research Topics (5 papers)Spectroscopy and Quantum Chemical Studies (4 papers)
Cited by: Physical and Theoretical Chemistry Atomic and Molecular Physics, and Optics Spectroscopy
Journals: Journal of the American Chemical Society The Journal of Chemical Physics The Journal of Physical Chemistry
Partner nations: Canada United States Türkiye

In The Last Decade

Ilyas Absar

24 papers receiving 328 citations

Peers

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

#	Work	Indexed citations
1	Use of localized orbitals to circumvent convergence difficulties in lcao-mo-scf calculations 2009 ·International Journal of Quantum Chemistry ·John H. Letcher,Ilyas Absar,John R. Van Wazer	0
2	Reduced hamiltonian orbitals. I. a new approach to the many-electron problem 2009 ·International Journal of Quantum Chemistry ·Ilyas Absar,Alan Coleman	4
3	Reduced hamiltonian orbitals. III. Unitarily invariant decomposition of hermitian operators 1980 ·International Journal of Quantum Chemistry ·Alan Coleman,Ilyas Absar	53
4	Die Verwendung von Elektronendichte-Diagrammen in der Quantenchemie 1978 ·Angewandte Chemie ·Ilyas Absar,John R. Van Wazer	6
5	Use of Electron‐Density Plots in Applied Quantum Chemistry 1978 ·Angewandte Chemie International Edition in English ·Ilyas Absar,John R. Van Wazer	2
6	I. Basic Concepts of Quantum Chemistry for Electron Density Studies 1977 ·Israel Journal of Chemistry ·Vedene H. Smith,Ilyas Absar	20
7	Some aspects of the N-representability problem in finite dimensions. I. Operator endomorphisms which induce necessary conditions 1977 ·Journal of Mathematical Physics ·Hans Kummer,Ilyas Absar,Alan Coleman	16
8	One electron orbitals intrinsic to the reduced hamiltonian 1976 ·Chemical Physics Letters ·Ilyas Absar,Alan Coleman	29
9	Electron densities in molecules and molecular orbitals 1975 ·Academic Press eBooks ·John R. Van Wazer,Ilyas Absar	9
10	A Semi-empirical Analysis of the Electronic Spectra and Molecular Structures of Hydrogen Cyanide and Carbon Dioxide 1972 ·Canadian Journal of Chemistry ·Ilyas Absar,(unknown)	11
11	A Semi-empirical Analysis of the Electronic Spectrum and Molecular Structure of Formaldehyde 1972 ·Canadian Journal of Chemistry ·Ilyas Absar,C. S. Lin,(unknown)	5
12	Rotational Barrier and Electronic Structure of Monomethylphosphine from Ab Initio LCAO–MO–SCF Calculations 1972 ·The Journal of Chemical Physics ·Ilyas Absar,John R. Van Wazer	11
13	Intermolecular correlation of self-consistent field molecular orbitals. I. Ab initio LCAO-MO-SCF studies of the difluorophosphine and difluorophosphine oxide 1972 ·Journal of the American Chemical Society ·Ilyas Absar,John R. Van Wazer	9
14	Ab initio LCAO-MO-SCF study of bonding in the simplest phosphorus ylide 1972 ·Journal of the American Chemical Society ·Ilyas Absar,John R. Van Wazer	35
15	Electronic structure and rotational barrier of diphosphine 1972 ·Journal of the Chemical Society Faraday Transactions 2 Molecular and Chemical Physics ·Ilyas Absar,(unknown),John R. Van Wazer	6
16	The electronic structure of difluoromethane: ab initio studies in several basis sets and semiempirical calculations 1971 ·Journal of the Chemical Society A Inorganic Physical Theoretical ·Mark L. Unland,John H. Letcher,Ilyas Absar,John R. Van Wazer	2
17	Ab initio LCAO-MO-SCF study of methinophosphide and its relation to hydrogen cyanide 1971 ·Journal of the American Chemical Society ·John R. Van Wazer,(unknown),H.C. Marsmann,Ilyas Absar	30
18	Ab initio LCAO-MO-SCF study of the phosphoryl fluoride molecule, OPF3 1971 ·The Journal of Physical Chemistry ·John R. Van Wazer,Ilyas Absar	14
19	The barrier to internal rotation in monomethylphosphine: an ab initio LCAO–MO–SCF study 1971 ·Journal of the Chemical Society D Chemical Communications ·Ilyas Absar,John R. Van Wazer	8
20	An approximation for gaussian d-orbital exponents of second-row atoms for LCAO MO SCF studies 1971 ·Chemical Physics Letters ·Ilyas Absar,John R. Van Wazer	6

About Ilyas Absar

Ilyas Absar is a scholar working on Physical and Theoretical Chemistry, Atomic and Molecular Physics, and Optics and Inorganic Chemistry, having authored 26 papers that have together received 354 indexed citations. Recurring topics across this work include Advanced Chemical Physics Studies (14 papers), Various Chemistry Research Topics (5 papers) and Spectroscopy and Quantum Chemical Studies (4 papers). The work is most often cited by research in Physical and Theoretical Chemistry (79 citations), Atomic and Molecular Physics, and Optics (233 citations) and Spectroscopy (98 citations). Ilyas Absar has collaborated with scholars based in Canada, United States and Türkiye. Frequent 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. Their work appears in journals such as Journal of the American Chemical Society, The Journal of Chemical Physics and The Journal of Physical Chemistry.

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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