Sei Tsuboyama

2.5k total citations · 1 hit paper
71 papers, 2.2k citations indexed

About

Sei Tsuboyama is a scholar working on Materials Chemistry, Organic Chemistry and Oncology. According to data from OpenAlex, Sei Tsuboyama has authored 71 papers receiving a total of 2.2k indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Materials Chemistry, 23 papers in Organic Chemistry and 22 papers in Oncology. Recurrent topics in Sei Tsuboyama's work include Lanthanide and Transition Metal Complexes (20 papers), Metal complexes synthesis and properties (20 papers) and Magnetism in coordination complexes (19 papers). Sei Tsuboyama is often cited by papers focused on Lanthanide and Transition Metal Complexes (20 papers), Metal complexes synthesis and properties (20 papers) and Magnetism in coordination complexes (19 papers). Sei Tsuboyama collaborates with scholars based in Japan, Russia and Belarus. Sei Tsuboyama's co-authors include Yōji Umezawa, Motohiro Nishio, Kazumasa Honda, Hiroko Suezawa, Jun Uzawa, Hiroki Takahashi, Takashi Yoshida, Tosio Sakurai, Kazuhiko Ishizu and Yuji Kohno and has published in prestigious journals such as Journal of the American Chemical Society, Inorganic Chemistry and The Journal of Organic Chemistry.

In The Last Decade

Sei Tsuboyama

69 papers receiving 2.1k citations

Hit Papers

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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.

CH/π hydrogen bonds in organic and organometallic chemistry

2009 500 citations Motohiro Nishio, Yōji Umezawa et al. CrystEngComm profile →

Peers

Countries citing papers authored by Sei Tsuboyama

Since Specialization

Citations

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

Fields of papers citing papers by Sei Tsuboyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sei Tsuboyama

This figure shows the co-authorship network connecting the top 25 collaborators of Sei Tsuboyama. A scholar is included among the top collaborators of Sei Tsuboyama 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 Sei Tsuboyama. Sei Tsuboyama 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	CH/π hydrogen bonds in organic and organometallic chemistry breakdown → 2009 ·CrystEngComm ·Motohiro Nishio, Yōji Umezawa, Kazumasa Honda, Sei Tsuboyama, Hiroko Suezawa	500
2	The Aromatic CH/π Hydrogen Bond as an Important Factor in Determining the Relative Stability of Diastereomeric Salts Relevant to Enantiomeric Resolution − A Crystallographic Database Study 2004 ·European Journal of Organic Chemistry ·Hiroko Suezawa, Shinji Ishihara, Yōji Umezawa, Sei Tsuboyama, Motohiro Nishio	67
3	Hydrogen-Bond-Like Nature of the CH/π Interaction as Evidenced by Crystallographic Database Analyses and Ab Initio Molecular Orbital Calculations 2001 ·Bulletin of the Chemical Society of Japan ·Osamu Takahashi, Yuji Kohno, (unknown), Ko Saito, Michio Iwaoka, Shuji Tomoda, Yōji Umezawa, Sei Tsuboyama, Motohiro Nishio	138
4	CH/π interaction in the conformation of peptides. A database study † †This paper is dedicated to the memory of the late Professor Sir Derek H. R. Barton, the founder of the concept of conformation. The authors sincerely regret the immeasurable loss of an outstanding figure in the world of science. 1999 ·Bioorganic & Medicinal Chemistry ·Yōji Umezawa, Sei Tsuboyama, Hiroki Takahashi, Jun Uzawa, Motohiro Nishio	71
5	Crystal Structures of (R)- and (S)-Methionato-(SSSR)-[(2R,5R, 8R,11R)-2,5,8,11-tetraethyl-1,4,7,10-tetraazacyclododecane]cobalt(III) Diperchlorate Monohydrate1 1996 ·Analytical Sciences ·Kimiko Kobayashi, Sei Tsuboyama, (unknown), (unknown), Tosio Sakurai	1
6	Ligand Determination of a Copper Complex by Cu 2p X-Ray Photoelectron Spectroscopy 1994 ·Analytical Sciences ·Jun Kawai, Sei Tsuboyama, Kazuhiko Ishizu, Kazuo Miyamura, Masahiko Saburi	14
7	HBF4 and HBr salts of new chiral cyclens 1994 ·Acta Crystallographica Section C Crystal Structure Communications ·K. Kobayashi, Sei Tsuboyama, Kotaro Tsuboyama, Takashi Sakurai	8
8	COVALENCY OF COPPER COMPLEXES DETERMINED BY Cu 2<sub>p</sub> X-RAY PHOTOELECTRON SPECTROMETRY 1991 ·Analytical Sciences ·Jun Kawai, Sei Tsuboyama, Kazuhiko Ishizu, Kazuo Miyamura, Masahiko Saburi	3
9	Structural studies on metal complexes of chiral cyclen. VIII Molecular recognition by a cobalt(III) complex of optically active cyclen. Structure determination and asymmetric decarboxylation of (+)508-(.ALPHA.-amino-.ALPHA.-methylmalonato) (2R, 5R, 8R, 11R-2,5,8,11-tetraethyl-1,4,7,10-tetraazacyclododecan... 1987 ·NIPPON KAGAKU KAISHI ·Sei Tsuboyama, (unknown), (unknown), (unknown)	2
10	Amino-acid complexation to a cobalt(III) complex of optically-active (2R,5R,8R,11R)-2,5,8,11 -tetraethyl-1,4,7,10-tetra-azacyclododecane (L). Preparation, characterization, and structure determinations of [Co^III{(R)-or(S)-alaO}L]Br[ClO₄]·H₂O 1987 ·Journal of the Chemical Society Dalton Transactions ·Sei Tsuboyama, Tosio Sakurai, (unknown)	4
11	pH dependence of binding site in complexation of Cu^II with picolinamide groups: crystallographic studies of mono- and binuclear complexes with N,N'-dipicolinoyl-1,3-propanediamine 1984 ·Acta Crystallographica Section B Structural Science ·Sei Tsuboyama, Takeshi Sakurai, Kôji Kobayashi, Naoki Azuma, (unknown), Kazuhiko Ishizu	18
12	1983 ·NIPPON KAGAKU KAISHI ·Sei Tsuboyama, (unknown), (unknown), (unknown), (unknown)	1
13	Structural studies on metal complexes of chiral cyclen. IV. Chloro[(2R,5R,8S,11S)-1,4,7,10-tetrabenzyl-2,5,8,11-tetraethyl-1,4,7,10-tetraazacyclododecane]copper(II) dichlorocuprate(I), [Cu(C44H60N4)Cl][CuCl2] 1983 ·Acta Crystallographica Section C Crystal Structure Communications ·Takeshi Sakurai, K. Kobayashi, Hideki Masuda, Sei Tsuboyama, Kotaro Tsuboyama	4
14	Cyclic tetramers of chiral aziridines. III. Ring conformation. 1977 ·Tetrahedron Letters ·(unknown), Sei Tsuboyama, Jun Uzawa, Kimiko Kobayashi, Tosio Sakurai	8
15	1976 ·NIPPON KAGAKU KAISHI ·Sei Tsuboyama, (unknown), (unknown), (unknown)	1
16	CYCLIC TETRAMERS OF CHIRAL AZIRIDINES. II. ISOLATION OF FOUR STEREOISOMERS 1974 ·Chemistry Letters ·(unknown), Sei Tsuboyama, Jun Uzawa, Iwami Higashi	4
17	Mass spectrometry of cyclonucleosides 1972 ·The Journal of Organic Chemistry ·James A. McCloskey, Sei Tsuboyama	11
18	Asymmetric Synthesis with Optically Active Polymer 1969 ·Journal of Synthetic Organic Chemistry Japan ·Sei Tsuboyama	1
19	An anomalous reaction in bromination of 2-benzylamino-1-butanol 1969 ·Tetrahedron Letters ·Sei Tsuboyama, Akihiro Ohta, (unknown)	3
20	Catalytic Asymmetric Benzaldehyde Cyanohydrin Synthesis with Synthetic Optically Active Polymer. III. N-Substituted Poly-(s)-isobutylethylenimine 1966 ·Bulletin of the Chemical Society of Japan ·Sei Tsuboyama	22

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