S. Okajima

749 total citations
34 papers, 619 citations indexed

About

S. Okajima is a scholar working on Physical and Theoretical Chemistry, Atomic and Molecular Physics, and Optics and Organic Chemistry. According to data from OpenAlex, S. Okajima has authored 34 papers receiving a total of 619 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Physical and Theoretical Chemistry, 15 papers in Atomic and Molecular Physics, and Optics and 8 papers in Organic Chemistry. Recurrent topics in S. Okajima's work include Photochemistry and Electron Transfer Studies (18 papers), Spectroscopy and Quantum Chemical Studies (8 papers) and Advanced Chemical Physics Studies (8 papers). S. Okajima is often cited by papers focused on Photochemistry and Electron Transfer Studies (18 papers), Spectroscopy and Quantum Chemical Studies (8 papers) and Advanced Chemical Physics Studies (8 papers). S. Okajima collaborates with scholars based in United States, Japan and Israel. S. Okajima's co-authors include E. C. Lim, Asit K. Chandra, Hiroyuki Saigusa, Akíra Hosomi, Katsukiyo Miura, Donald T. Reed, A. Keith Jameson, Takahiro Nakagawa, Tatsuyuki Takahashi and Jan P. Hessler 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

S. Okajima

33 papers receiving 579 citations

Peers

Countries citing papers authored by S. Okajima

Since Specialization

Citations

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

Fields of papers citing papers by S. Okajima

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of S. Okajima

This figure shows the co-authorship network connecting the top 25 collaborators of S. Okajima. A scholar is included among the top collaborators of S. Okajima 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 S. Okajima. S. Okajima 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	Changes in the Conformational Preference of Benzyl Methyl Ether upon Hydrogen Bonding 2025 ·The Journal of Physical Chemistry A ·(unknown), (unknown), S. Okajima, Hiroko Sasaki, Noriyoshi Nagahora, Yoshinori Nibu	0
2	ChemInform Abstract: Organosilicon Chemistry. Part 153. Acid‐Catalyzed Cyclization of Vinylsilanes Bearing a Hydroxy Group: A New Method for Stereoselective Synthesis of Disubstituted Tetrahydrofurans. 2001 ·ChemInform ·Katsukiyo Miura, S. Okajima, (unknown), Takahiro Nakagawa, Tatsuyuki Takahashi, Akíra Hosomi	1
3	Stereoselective synthesis of 2,5-disubstituted tetrahydrofurans by silicon-directed cyclization of vinylsilanes bearing a hydroxy group 1996 ·Tetrahedron Letters ·Katsukiyo Miura, (unknown), S. Okajima, Akíra Hosomi	18
4	Silicon-directed cyclization of vinylsilanes bearing hydroxy group catalyzed by an acid 1995 ·Tetrahedron Letters ·Katsukiyo Miura, S. Okajima, (unknown), Akíra Hosomi	18
5	Speciation of Pu(VI) in Near-Neutral Solutions via Laser Photoacoustic Spectroscopy 1991 ·Radiochimica Acta ·S. Okajima, Donald T. Reed, James V. Beitz, (unknown), (unknown)	14
6	High sensitivity photoacoustic spectrometer for variable temperature solution studies 1990 ·Review of Scientific Instruments ·James V. Beitz, Mark M. Doxtader, V.A. Maroni, S. Okajima, Donald T. Reed	8
7	Tunable laser flash absorption: a new technique for measuring rates and yields of chemical reactions at high temperatures 1990 ·Applied Optics ·(unknown), S. Okajima, John H. Kiefer, Paul J. Ogren, Jan P. Hessler	7
8	Speciation of Pu(Vi) in Near-Neutral to Basic Solutions via Spectroscopy 1989 ·MRS Proceedings ·S. Okajima, Donald T. Reed, J.J. Mazer, (unknown)	1
9	Spectroscopic and dynamical differences between exciplex and electronically excited EDA complex 1986 ·The Journal of Chemical Physics ·(unknown), S. Okajima, E. C. Lim	5
10	“Channel-three-like” behavior of photoexcited isoquinoline vapor: a model for electronic and vibrational relaxation 1984 ·Chemical Physics Letters ·Brad E. Forch, S. Okajima, E. C. Lim	11
11	Electronic and vibrational relaxations in van der Waals complexes of isoquinoline with argon and nitrogen: energetics and dynamics of photodissociation leading to S1(n.pi.) isoquinoline 1984 ·The Journal of Physical Chemistry* ·A. Keith Jameson, Brad E. Forch, (unknown), S. Okajima, (unknown), Edward C. Lim	6
12	Radiationless transitions in electron donor–acceptor complexes: Position-dependent deuterium isotope effects on S1→S internal conversion of 1:1 and 2:1 complexes of methyl-substituted benzenes with tetracyanobenzene 1982 ·The Journal of Chemical Physics ·(unknown), S. Okajima, Asit K. Chandra, E. C. Lim	15
13	Rotational cooling and electronic relaxation in diazabenzenes 1981 ·The Journal of Chemical Physics ·A. Keith Jameson, S. Okajima, E. C. Lim	25
14	Nonexponential decay of fluorescence of jet-cooled isoquinoline related to intermediate level structure of S2–S1 coupling 1981 ·The Journal of Chemical Physics ·A. Keith Jameson, S. Okajima, (unknown), E. C. Lim	4
15	Radiationless transitions in electron donor-acceptor complexes: selection rules for S1 → T intersystem crossing and efficiency of S1 → S0 internal conversion 1981 ·Chemical Physics Letters ·(unknown), S. Okajima, Asit K. Chandra, E. C. Lim	86
16	Excitation energy and isotope dependence of exciplex formation in the vapor phase: evidence for vibrational effects in photoassociation 1980 ·Chemical Physics Letters ·S. Okajima, E. C. Lim	16
17	Electronic relaxation of molecular exciplexes in the vapor phase 1979 ·Chemical Physics Letters ·J. Prochorow, S. Okajima, E. C. Lim	18
18	Radiationless transitions in gaseous nitrogen heterocyclics: Energy dependence of internal conversion in quinoline and isoquinoline 1978 ·The Journal of Chemical Physics ·S. Okajima, E. C. Lim	20
19	Triplet excimer formation and phosphorescence in fluid solutions of diarylalkanes: Excimer phosphorescence of dinaphthylalkanes and monomer phosphorescence of diphenylpropane 1977 ·The Journal of Chemical Physics ·S. Okajima, (unknown), E. C. Lim	27
20	’’Proximity effects’’ in radiationless transitions of aromatic molecules with nonbonding electrons: Substituent and temperature dependences of luminescence in some N-heterocyclics 1976 ·The Journal of Chemical Physics ·(unknown), S. Okajima, E. C. Lim	49

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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