Nobumasa Kitajima

6.5k total citations · 2 hit papers
73 papers, 5.2k citations indexed

About

Nobumasa Kitajima is a scholar working on Inorganic Chemistry, Materials Chemistry and Oncology. According to data from OpenAlex, Nobumasa Kitajima has authored 73 papers receiving a total of 5.2k indexed citations (citations by other indexed papers that have themselves been cited), including 48 papers in Inorganic Chemistry, 32 papers in Materials Chemistry and 26 papers in Oncology. Recurrent topics in Nobumasa Kitajima's work include Metal-Catalyzed Oxygenation Mechanisms (29 papers), Metal complexes synthesis and properties (26 papers) and Magnetism in coordination complexes (20 papers). Nobumasa Kitajima is often cited by papers focused on Metal-Catalyzed Oxygenation Mechanisms (29 papers), Metal complexes synthesis and properties (26 papers) and Magnetism in coordination complexes (20 papers). Nobumasa Kitajima collaborates with scholars based in Japan and United States. Nobumasa Kitajima's co-authors include Yoshihiko Moro‐oka, Kiyoshi Fujisawa, Masako Tanaka, Koshiro Toriumi, Shiro Hikichi, Teizo Kitagawa, Shinji Hashimoto, Yoshio Ono, Takayuki Koda and Hideno Fukui and has published in prestigious journals such as Chemical Reviews, Journal of the American Chemical Society and The Journal of Physical Chemistry.

In The Last Decade

Nobumasa Kitajima

72 papers receiving 4.9k citations

Hit Papers

align trajectories sort by overperformance

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.

Copper-Dioxygen Complexes. Inorganic and Bioinorganic Perspectives

1994 771 citations Nobumasa Kitajima, Yoshihiko Moro‐oka Chemical Reviews profile →
A new model for dioxygen binding in hemocyanin. Synthesis, characterization, and molecular structure of the .mu.-.eta.2:.eta.2 peroxo dinuclear copper(II) complexes, [Cu(HB(3,5-R2pz)3)]2(O2) (R = isopropyl and Ph)

1992 544 citations Nobumasa Kitajima, Kiyoshi Fujisawa et al. Journal of the American Chemical Society profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Nobumasa Kitajima Japan	37	3.4k	2.4k	1.9k	1.6k	1.3k	73	5.2k
J.A. Halfen United States	38	3.1k 0.9×	1.7k 0.7×	1.3k 0.7×	1.7k 1.1×	781 0.6×	67	4.4k
A. S. Borovik United States	48	5.1k 1.5×	2.4k 1.0×	2.7k 1.5×	2.0k 1.2×	1.4k 1.0×	156	7.3k
Emile L. Bominaar United States	44	3.8k 1.1×	1.5k 0.6×	2.2k 1.2×	1.1k 0.7×	1.6k 1.2×	121	5.6k
E.V. Rybak-Akimova United States	37	2.6k 0.8×	1.4k 0.6×	1.4k 0.8×	1.5k 1.0×	621 0.5×	120	4.0k
Ward T. Robinson New Zealand	36	2.4k 0.7×	1.3k 0.5×	2.0k 1.0×	2.7k 1.7×	1.1k 0.8×	314	6.2k
E. Bothe Germany	53	3.8k 1.1×	3.0k 1.3×	2.1k 1.1×	3.0k 1.8×	3.1k 2.3×	143	8.4k
Christian Philouze France	39	2.2k 0.7×	1.9k 0.8×	1.5k 0.8×	1.7k 1.1×	1.4k 1.1×	195	4.9k
Siegfried Schindler Germany	37	3.0k 0.9×	2.2k 0.9×	1.4k 0.7×	1.4k 0.9×	1.0k 0.8×	128	4.2k
Oren P. Anderson United States	49	3.8k 1.1×	1.4k 0.6×	2.3k 1.2×	3.2k 2.0×	1.2k 0.9×	208	7.1k
Yoshihiko Moro‐oka Japan	54	6.0k 1.8×	3.2k 1.4×	3.6k 1.9×	5.1k 3.2×	2.0k 1.5×	278	10.5k

Countries citing papers authored by Nobumasa Kitajima

Since Specialization

Citations

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

Fields of papers citing papers by Nobumasa Kitajima

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Nobumasa Kitajima

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

Brunold, Thomas C., Nobuchika Tamura, Nobumasa Kitajima, Yoshihiko Moro‐oka, & Edward I. Solomon. (1998). Spectroscopic Study of [Fe₂(O₂)(OBz)₂{HB(pz‘)₃}₂]: Nature of the μ-1,2 Peroxide−Fe(III) Bond and Its Possible Relevance to O₂Activation by Non-Heme Iron Enzymes. Journal of the American Chemical Society. 120(23). 5674–5690. 90 indexed citations

Osawa, Masahisa, Masako Tanaka, Kiyoshi Fujisawa, Nobumasa Kitajima, & Yoshihiko Moro‐oka. (1996). A Monomeric Zinc Complex Ligated by an Unsymmetric Hydrotris(pyrazolyl)borate Containing an OH Group. Chemistry Letters. 25(5). 397–398. 4 indexed citations

Kitajima, Nobumasa & Yoshihiko Moro‐oka. (1994). Copper-Dioxygen Complexes. Inorganic and Bioinorganic Perspectives. Chemical Reviews. 94(3). 737–757. 771 indexed citations breakdown →

Osawa, Masahisa, Yoshihiko Moro‐oka, & Nobumasa Kitajima. (1993). Manganese Complexes Modeling the Active Sites of Manganese Proteins.. Journal of Synthetic Organic Chemistry Japan. 51(10). 921–930. 1 indexed citations

Kitajima, Nobumasa, Nobuchika Tamura, Masami Ito, et al.. (1993). Novel formation of a linear trinuclear ferric complex containing a .mu.-oxo bis(.mu.-acetato) and a .mu.-hydroxo bis(.mu.-acetato) bridge. Inorganic Chemistry. 32(17). 3583–3584. 30 indexed citations

Osawa, Masahisa, et al.. (1993). Synthesis and oxidation chemistry of dimanganese(II,II) complex of biological relevance. Journal of Inorganic Biochemistry. 51(1-2). 195–195. 1 indexed citations

Kitajima, Nobumasa, Kiyoshi Fujisawa, & Yoshihiko Moro‐oka. (1992). Synthetic approach to the dioxygen binding sites in metalloproteins. Journal of Molecular Catalysis. 74(1-3). 143–151. 5 indexed citations

Kitajima, Nobumasa, Kiyoshi Fujisawa, Yoshihiko Moro‐oka, et al.. (1992). A new model for dioxygen binding in hemocyanin. Synthesis, characterization, and molecular structure of the .mu.-.eta.2:.eta.2 peroxo dinuclear copper(II) complexes, [Cu(HB(3,5-R2pz)3)]2(O2) (R = isopropyl and Ph). Journal of the American Chemical Society. 114(4). 1277–1291. 544 indexed citations breakdown →

Kitajima, Nobumasa, Masahisa Osawa, Masako Tanaka, & Yoshihiko Moro‐oka. (1991). A novel dioxygenase type oxygen insertion. Carbon-hydrogen bond oxidation of isopropyl groups in a dimanganese complex with molecular oxygen. Journal of the American Chemical Society. 113(23). 8952–8953. 57 indexed citations

10.

Kitajima, Nobumasa, Takayuki Koda, Shinji Hashimoto, Teizo Kitagawa, & Yoshihiko Moro‐oka. (1991). Synthesis and characterization of the dinuclear copper(II) complexes [Cu(HB(3,5-Me2pz)3)]2X (X = O2-, (OH)22-, CO22-, O22-). Journal of the American Chemical Society. 113(15). 5664–5671. 140 indexed citations

11.

Kitajima, Nobumasa, et al.. (1991). Oxidative conversion of a Mn(.mu.-OH)2Mn to a Mn(.mu.-O)2Mn moiety. Synthesis and molecular structures of a (.mu.-hydroxo)dimanganese (II,II) and (.mu.-oxo)dimanganese(III,III) complex with a hindered N3 ligand. Journal of the American Chemical Society. 113(20). 7757–7758. 82 indexed citations

12.

Kitajima, Nobumasa, Hideno Fukui, Yoshihiko Moro‐oka, Yasuhisa Mizutani, & Teizo Kitagawa. (1990). Synthetic model for dioxygen binding sites of non-heme iron proteins. X-ray structure of Fe(OBz)(MeCN)[HB(3,5-iso-Pr2pz)3] [HB(3,5-iso-Pr2pz)3 = hydrotris(3,5-diisopropyl-1-pyrazolyl)borate] and resonance Raman evidence for reversible formation of a peroxo adduct. Journal of the American Chemical Society. 112(17). 6402–6403. 55 indexed citations

13.

Fukui, Hideno, Masami Ito, Yoshihiko Moro‐oka, & Nobumasa Kitajima. (1990). Preparation and structure of mononuclear iron(III) complexes [LFeCl3]- and [LFe(N3)3]- (L = hydrotris(1-pyrazolyl)borate and hydrotris(3,5-dimethyl-1-pyrazolyl)borate). Inorganic Chemistry. 29(15). 2868–2870. 27 indexed citations

14.

Kitajima, Nobumasa, et al.. (1988). The Liquid-Phase Oxidation of p-Methoxytoluene to p-Anisaldehyde with Co(OAc)2/Ce(OAc)3/Cr(OAc)3 Catalyst. Bulletin of the Chemical Society of Japan. 61(3). 967–971. 16 indexed citations

15.

Kitajima, Nobumasa, et al.. (1988). The Selective Liquid-Phase Oxidation of 3,4,5-Trimethoxytoluene to 3,4,5-Trimethoxybenzaldehyde. Bulletin of the Chemical Society of Japan. 61(3). 1035–1037. 11 indexed citations

16.

Kitajima, Nobumasa & Yoshio Ono. (1987). Two component friedel-crafts catalysts as solid superacids. Materials Chemistry and Physics. 17(1-2). 31–48. 4 indexed citations

17.

Kitajima, Nobumasa, et al.. (1984). Rhodium-catalyzed homologation of methyl halides using CO/H2. Journal of Molecular Catalysis. 24(2). 261–262. 1 indexed citations

18.

Kitajima, Nobumasa & Jeffrey Schwartz. (1984). H/D-exchange reactions between alkanes and deuterium catalyzed by supported organorhodhun complexes. Journal of Molecular Catalysis. 26(1). 165–169. 4 indexed citations

19.

Kitajima, Nobumasa & Yoshio Ono. (1980). Cu(AlCl4)2 as a catalyst for the isomerization of pentane at room temperature. Journal of Molecular Catalysis. 10(1). 121–122. 7 indexed citations

20.

Ono, Yoshio, et al.. (1978). HIGHLY SELECTIVE ISOMERIZATION OF PENTANE WITH AlBr3-METAL SULFATE MIXTURES. Chemistry Letters. 7(10). 1061–1064. 15 indexed citations

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