Noboru Koga

3.9k total citations
111 papers, 3.3k citations indexed

About

Noboru Koga is a scholar working on Materials Chemistry, Electronic, Optical and Magnetic Materials and Organic Chemistry. According to data from OpenAlex, Noboru Koga has authored 111 papers receiving a total of 3.3k indexed citations (citations by other indexed papers that have themselves been cited), including 64 papers in Materials Chemistry, 61 papers in Electronic, Optical and Magnetic Materials and 34 papers in Organic Chemistry. Recurrent topics in Noboru Koga's work include Magnetism in coordination complexes (57 papers), Lanthanide and Transition Metal Complexes (40 papers) and Electron Spin Resonance Studies (32 papers). Noboru Koga is often cited by papers focused on Magnetism in coordination complexes (57 papers), Lanthanide and Transition Metal Complexes (40 papers) and Electron Spin Resonance Studies (32 papers). Noboru Koga collaborates with scholars based in Japan, China and France. Noboru Koga's co-authors include Hiizu Iwamura, Satoru Karasawa, Katsuya Inoue, Iwao Tabushi, Kenji Matsuda, Daisuke Yoshihara, Yuichiro Abe, Motohiro Nakano, N. Nakamura and Makoto Kitano and has published in prestigious journals such as Journal of the American Chemical Society, Angewandte Chemie International Edition and Accounts of Chemical Research.

In The Last Decade

Noboru Koga

109 papers receiving 3.1k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Noboru Koga Japan	32	1.9k	1.9k	1.0k	739	683	111	3.3k
Francisco M. Romero Spain	33	2.5k 1.3×	2.0k 1.1×	592 0.6×	1.3k 1.7×	443 0.6×	82	3.6k
E.V. Tretyakov Russia	29	1.7k 0.9×	1.4k 0.7×	1.3k 1.3×	419 0.6×	1.0k 1.5×	264	3.3k
Vincent Robert France	30	1.4k 0.8×	1.2k 0.6×	685 0.7×	721 1.0×	267 0.4×	129	2.5k
Latévi Max Lawson Daku Switzerland	26	1.4k 0.7×	1.6k 0.9×	386 0.4×	775 1.0×	308 0.5×	78	2.9k
Melanie Pilkington Canada	26	1.5k 0.8×	1.3k 0.7×	767 0.7×	841 1.1×	209 0.3×	122	2.6k
Carlos Giménez‐Saiz Spain	39	2.1k 1.1×	2.9k 1.5×	979 0.9×	2.0k 2.7×	221 0.3×	106	4.3k
Pierre Dechambenoit France	30	1.4k 0.7×	1.7k 0.9×	969 0.9×	967 1.3×	194 0.3×	72	2.7k
Г.В. Романенко Russia	29	2.5k 1.4×	2.0k 1.1×	897 0.9×	1.1k 1.4×	1.1k 1.7×	342	3.7k
Pei Yu France	39	2.8k 1.5×	2.8k 1.5×	997 1.0×	1.6k 2.1×	242 0.4×	103	4.7k
Leoní A. Barrios Spain	25	1.6k 0.8×	1.3k 0.7×	748 0.7×	1.0k 1.4×	286 0.4×	63	2.6k

Countries citing papers authored by Noboru Koga

Since Specialization

Citations

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

Fields of papers citing papers by Noboru Koga

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Noboru Koga

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

Karasawa, Satoru, et al.. (2012). Magnetic properties of 1 : 4 complexes of CoCl2 and pyridines carrying carbenes (S0 = 4/2, 6/2, and 8/2) in diluted frozen solution; influence of carbene multiplicity on heterospin single-molecule magnets. Dalton Transactions. 41(44). 13656–13656. 15 indexed citations

Abe, Yuichiro, Satoru Karasawa, & Noboru Koga. (2012). Crystal Structures and Emitting Properties of Trifluoromethylaminoquinoline Derivatives: Thermal Single‐Crystal‐to‐Single‐Crystal Transformation of Polymorphic Crystals That Emit Different Colors. Chemistry - A European Journal. 18(47). 15038–15048. 72 indexed citations

Karasawa, Satoru & Noboru Koga. (2011). Magnetic Properties after Irradiation of 1:4 Complexes Consisting of CoX₂, X = NCS^–, Cl^–, and NCO^–, and Phenylpyridyldiazomethane in Dilute Frozen Solutions: Axial Ligand Effect in Heterospin Single-Molecule Magnets. Inorganic Chemistry. 50(11). 5186–5195. 22 indexed citations

Karasawa, Satoru & Noboru Koga. (2011). Magnetic Behaviors of Heterospin Chains Consisting of Cobalt(II) Complexes and Dipyridylcarbenes. Inorganic Chemistry. 50(6). 2055–2057. 12 indexed citations

Yoshihara, Daisuke, Satoru Karasawa, & Noboru Koga. (2011). Heterospin single-molecule magnets with extra-large anisotropic barrier. Polyhedron. 30(18). 3211–3217. 19 indexed citations

Hayashi, Hiroyuki, Satoru Karasawa, Akihiro Tanaka, et al.. (2009). Water‐proton relaxivity of hyperbranched polymers carrying TEMPO radicals. Magnetic Resonance in Chemistry. 47(3). 201–204. 12 indexed citations

Sato, Yuichiro, Hiroyuki Hayashi, Mariko Aso, et al.. (2008). Water‐proton relaxivities of DNA oligomers carrying TEMPO radicals. Magnetic Resonance in Chemistry. 46(11). 1055–1058. 14 indexed citations

Karasawa, Satoru, et al.. (2008). Formation of monometallic single-molecule magnets with an Stotal value of 3/2 in diluted frozen solution. Dalton Transactions. 1418–1418. 28 indexed citations

Yoshihara, Daisuke, Satoru Karasawa, & Noboru Koga. (2008). Cyclic Single-Molecule Magnet in Heterospin System. Journal of the American Chemical Society. 130(32). 10460–10461. 81 indexed citations

10.

Kanegawa, Shinji, Satoru Karasawa, Motohiro Nakano, & Noboru Koga. (2004). Magnetic behavior of tetrakis[4-(N-tert-butyl-N-oxylamino)pyridine]bis(isocyanato-N)cobalt(ii) in frozen solution. Chemical Communications. 1750–1751. 41 indexed citations

11.

Aso, Mariko, et al.. (2003). A simple and efficient method for synthesis of 5-substituted 2′-deoxyuridine nucleosides using metal–halogen exchange reaction of 5-iodo-2′-deoxyuridine sodium salt. Chemical Communications. 1094–1095. 8 indexed citations

12.

Takano, Yu, Yasutaka Kitagawa, Taku Onishi, et al.. (2001). Theoretical Studies of Magnetic Interactions in Mn(II)(hfac)₂{di(4-pyridyl)phenylcarbene} and Cu(II)(hfac)₂{di(4-pyridyl)phenylcarbene}. Journal of the American Chemical Society. 124(3). 450–461. 59 indexed citations

13.

Karasawa, Satoru, et al.. (1998). Stabilization ofp-Phenylenebis(N-tert-butylaminoxyl) Relative top-BenzoquinonediimineN,N′-Dioxide. Angewandte Chemie International Edition. 37(11). 1550–1552. 15 indexed citations

14.

Matsuda, Kenji, N. Nakamura, Kazuyuki Takahashi, et al.. (1995). Design, Synthesis, and Characterization of Three Kinds of .pi.-Cross-Conjugated Hexacarbenes with High-Spin (S = 6) Ground States. Journal of the American Chemical Society. 117(20). 5550–5560. 109 indexed citations

15.

Koga, Noboru, et al.. (1994). Magnetic Interaction Between the Photochemically Generated Triplet Centers Through the π-Conjugated Skeleton of PPV. Molecular crystals and liquid crystals science technology. Section A, Molecular crystals and liquid crystals. 253(1). 51–57.

16.

Ichimura, A., Noboru Koga, & Hiizu Iwamura. (1994). Calibration of a semi‐empirical procedure for predicting the ground‐state spin multiplicities of open‐shell molecules. Applications to new systems. Journal of Physical Organic Chemistry. 7(4). 207–217. 15 indexed citations

17.

Inoue, Katsuya, et al.. (1993). 4,6-Dimethoxy-1,3-phenylenebis(N-tert-butyl nitroxide) with a singlet ground state. Formal violation of a rule that m-phenylene serves as a robust ferromagnetic coupling unit. Journal of the American Chemical Society. 115(3). 847–850. 105 indexed citations

18.

Inoue, Katsuya, Noboru Koga, & Hiizu Iwamura. (1991). An approach to organic ferromagnets. Synthesis and characterization of 1-phenyl-1,3-butadiyne polymers having a persistent nitroxide group on the phenyl ring. Journal of the American Chemical Society. 113(26). 9803–9810. 47 indexed citations

19.

Koga, Noboru & Hiizu Iwamura. (1989). Generation of tetraphenylporphyrins and their zinc complexes carrying phenylmethylenyl groups. Exchange interaction between diphenylcarbene units through a porphyrin ring.. NIPPON KAGAKU KAISHI. 1456–1462. 8 indexed citations

20.

Koga, Noboru, Yuzo Kawada, & Hiizu Iwamura. (1983). Recognition of the phase relationship between remote substituents in 9,10-bis(3-chloro-9-triptycyloxy)triptycene molecules undergoing rapid internal rotation cooperatively. Journal of the American Chemical Society. 105(16). 5498–5499. 30 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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