Tadashi Ema

9.3k total citations
177 papers, 8.0k citations indexed

About

Tadashi Ema is a scholar working on Organic Chemistry, Materials Chemistry and Molecular Biology. According to data from OpenAlex, Tadashi Ema has authored 177 papers receiving a total of 8.0k indexed citations (citations by other indexed papers that have themselves been cited), including 70 papers in Organic Chemistry, 63 papers in Materials Chemistry and 61 papers in Molecular Biology. Recurrent topics in Tadashi Ema's work include Enzyme Catalysis and Immobilization (45 papers), Carbon dioxide utilization in catalysis (43 papers) and Analytical Chemistry and Chromatography (39 papers). Tadashi Ema is often cited by papers focused on Enzyme Catalysis and Immobilization (45 papers), Carbon dioxide utilization in catalysis (43 papers) and Analytical Chemistry and Chromatography (39 papers). Tadashi Ema collaborates with scholars based in Japan, United States and Russia. Tadashi Ema's co-authors include Chihiro Maeda, Takashi Sakai, Kazuto Takaishi, Yuki Miyazaki, Masanori Utaka, Toshinobu Korenaga, Hisanobu Ogoshi, Yuki Miyazaki, Tomoya Taniguchi and Kevin M. Smith and has published in prestigious journals such as Journal of the American Chemical Society, Angewandte Chemie International Edition and Macromolecules.

In The Last Decade

Tadashi Ema

169 papers receiving 7.9k citations

Peers

Tadashi Ema
Eduardo C. Escudero‐Adán Spain
Gabriele Kociok‐Köhn United Kingdom
Yasushi Tsuji Japan
Zhongyuan Zhou China
Parimal K. Bharadwaj India
Anke Spannenberg Germany
Christopher D. Incarvito United States
Mary F. Mahon United Kingdom
Kazushi Mashima Japan
Judith C. Gallucci United States
Eduardo C. Escudero‐Adán Spain
Tadashi Ema
Citations per year, relative to Tadashi Ema Tadashi Ema (= 1×) peers Eduardo C. Escudero‐Adán

Countries citing papers authored by Tadashi Ema

Since Specialization
Citations

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

Fields of papers citing papers by Tadashi Ema

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tadashi Ema

This figure shows the co-authorship network connecting the top 25 collaborators of Tadashi Ema. A scholar is included among the top collaborators of Tadashi Ema 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 Tadashi Ema. Tadashi Ema is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Maeda, Chihiro, et al.. (2025). B,N‐Embedded Helical Nanographenes Showing an Ion‐Triggered Chiroptical Switching Function. Angewandte Chemie International Edition. 64(8). e202418546–e202418546. 11 indexed citations
2.
3.
Maeda, Chihiro & Tadashi Ema. (2025). Recent development of azahelicenes showing circularly polarized luminescence. Chemical Communications. 61(25). 4757–4773. 13 indexed citations
4.
Maeda, Chihiro, et al.. (2025). Selective and Divergent Synthesis of Naphthalene‐ and Phenanthrene‐Fused Azahelicenes by Turning Rearrangement On or Off. Chemistry - A European Journal. 31(16). e202404325–e202404325. 2 indexed citations
5.
Takaishi, Kazuto, et al.. (2025). A Binaphthyl Macrocycle Exhibiting Circularly Polarized Luminescence: On–off Switch Triggered by Molecular Recognition. Chemistry - A European Journal. 31(24). e202500736–e202500736. 1 indexed citations
6.
Maeda, Chihiro, et al.. (2025). Pyrene-Fused Azahelicene Showing Circularly Polarized Luminescence. Organic Letters. 27(25). 6648–6653.
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8.
Maeda, Chihiro, et al.. (2024). Cyclic Azahelicene Dimers Showing Bright Circularly Polarized Luminescence and Selective Fluoride Recognition. Angewandte Chemie International Edition. 63(30). e202404149–e202404149. 14 indexed citations
9.
Takaishi, Kazuto, et al.. (2024). Temperature‐Induced Sign Inversion of Circularly Polarized Luminescence of Binaphthyl‐Bridged Tetrathiapyrenophanes. Chemistry - A European Journal. 30(32). e202400866–e202400866. 22 indexed citations
10.
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Maeda, Chihiro, et al.. (2023). Catalytic synthesis and physical properties of CO2-based cross-linked poly(cyclohexene carbonate)s. Polymer Chemistry. 14(37). 4338–4343. 7 indexed citations
12.
Yoshida, Kazunori, et al.. (2021). Enhancement of protein thermostability by three consecutive mutations using loop-walking method and machine learning. Scientific Reports. 11(1). 11883–11883. 20 indexed citations
13.
Maeda, Chihiro, et al.. (2017). Electronic Tuning of Zinc Porphyrin Catalysts for the Conversion of Epoxides and Carbon Dioxide into Cyclic Carbonates. ChemCatChem. 9(6). 946–949. 59 indexed citations
14.
Maeda, Chihiro, et al.. (2014). Bifunctional Catalysts Based on m‐Phenylene‐Bridged Porphyrin Dimer and Trimer Platforms: Synthesis of Cyclic Carbonates from Carbon Dioxide and Epoxides. Angewandte Chemie International Edition. 54(1). 134–138. 290 indexed citations
15.
Fraschetti, Caterina, Antonello Filippi, Maria Elisa Crestoni, Tadashi Ema, & Maurizio Speranza. (2013). Multifunctional Macrocyclic Receptors as Templates for Aromatic Amino Acids: A Rare Example of a Highly Selective Multi‐Input Multi‐Output Chemo‐“Logic Gate”. ChemPlusChem. 78(9). 979–987. 5 indexed citations
16.
Fraschetti, Caterina, Antonello Filippi, Maria Elisa Crestoni, Tadashi Ema, & Maurizio Speranza. (2013). Unexpected Behavior of Diastereomeric Ions in the GasPhase: A Stimulus for Pondering on ee Measurements by ESI-MS. Journal of the American Society for Mass Spectrometry. 24(4). 573–578. 7 indexed citations
17.
Ema, Tadashi, et al.. (2012). Redesign of enzyme for improving catalytic activity and enantioselectivity toward poor substrates: manipulation of the transition state. Organic & Biomolecular Chemistry. 10(31). 6299–6299. 50 indexed citations
18.
Ema, Tadashi, et al.. (2010). Rational creation of mutant enzyme showing remarkable enhancement of catalytic activity and enantioselectivity toward poor substrates. Chemical Communications. 46(30). 5440–5440. 23 indexed citations
19.
Sakai, Takashi, Yuki Miyazaki, Tadashi Ema, et al.. (2009). Chemical modification of biogenous iron oxide to create an excellent enzyme scaffold. Organic & Biomolecular Chemistry. 8(2). 336–338. 33 indexed citations
20.
Ema, Tadashi, et al.. (2007). Highly enantioselective and efficient synthesis of methyl (R)-o-chloromandelate with recombinant E. coli: toward practical and green access to clopidogrel. Organic & Biomolecular Chemistry. 5(8). 1175–1175. 36 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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