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Topic · Organic Chemistry

Radical Photochemical Reactions

Radical Photochemical Reactions is a research topic within Organic Chemistry. Science Explorer counts 28k research works in it since 1950. 22.0% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the applications of photoredox catalysis in organic synthesis, including visible light photoredox catalysis, electrochemical methods, and the use of transition metal complexes. It explores radical reactions, C–H functionalization, photochemical synthesis, and electrocatalysis, with an emphasis on arylation reactions and nitrogen-centered radicals.

  • Visible Light Photoredox Catalysis
  • Organic Synthesis
  • Electrochemical Methods
  • Transition Metal Complexes
  • Radical Reactions
  • C–H Functionalization
  • Photochemical Synthesis
  • Electrocatalysis
  • Arylation Reactions
  • Nitrogen-Centered Radicals
Research works
28k
fractional, since 1950
In the world top 10%
6.1k
per year above
Top-10% rate
22.0%
share of its works in the world top 10%
Growth, 2013–17 → 2018–22
+58%
the tick is no change

Which countries lead Radical Photochemical Reactions research?

By volume, China and the United States publish the most (2.5k and 574 works in 2022–2025).

By volume, 2022–2025

  1. 1 China 2.5k works
  2. 2 United States 574 works
  3. 3 India 482 works
  4. 4 Japan 322 works
  5. 5 Germany 311 works
  6. 6 France 161 works
  7. 7 Russia 134 works
  8. 8 United Kingdom 125 works
  9. 9 Spain 105 works
  10. 10 Italy 100 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

China: 52.2%United States: 11.9%India: 9.9%Japan: 6.6%6 others listed: 19.3%52%largest
China2,529 · 52.2%United States574 · 11.9%India482 · 9.9%Japan322 · 6.6%6 others listed936 · 19.3%

Shares of the rows listed above, not of the whole node.

Which institutions lead Radical Photochemical Reactions research?

By volume in 2022–2025, Chinese Academy of Sciences publishes the most Radical Photochemical Reactions research, followed by Henan Normal University and Nankai University.

By volume, 2022–2025

  1. 1 Chinese Academy of SciencesChina 58 works
  2. 2 Henan Normal UniversityChina 58 works
  3. 3 Nankai UniversityChina 49 works
  4. 4 Shanghai Institute of Organic ChemistryChina 46 works
  5. 5 University of Chinese Academy of SciencesChina 46 works
  6. 6 Sichuan UniversityChina 42 works
  7. 7 Zhejiang University of TechnologyChina 41 works
  8. 8 Zhengzhou UniversityChina 40 works
  9. 9 University of MünsterGermany 39 works
  10. 10 Wuhan UniversityChina 37 works

Who are the leading researchers in Radical Photochemical Reactions?

The most-cited researchers publishing on Radical Photochemical Reactions include Ben Zhong Tang, Wei Huang and Krzysztof Matyjaszewski.

  1. 1 Ben Zhong Tang Hong Kong 7k citations
  2. 2 Wei Huang China 5.5k citations
  3. 3 Krzysztof Matyjaszewski United States 4.4k citations
  4. 4 David W. C. MacMillan United States 3.5k citations
  5. 5 Allen J. Bard United States 3.4k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

Where is Radical Photochemical Reactions research done?

The largest centres of Radical Photochemical Reactions research in 2022–2025 are Beijing (China), Shanghai (China), Nanjing (China) and Hangzhou (China). Among places with at least 20 works in it, it is an unusually large share of all research in Xinxiang, Taizhou and Regensburg.

Largest cities, 2022–2025

  1. 1 Beijing China 267 works
  2. 2 Shanghai China 184 works
  3. 3 Nanjing China 158 works
  4. 4 Hangzhou China 119 works
  5. 5 Wuhan China 105 works
  6. 6 Guangzhou China 90 works
  7. 7 Tianjin China 82 works
  8. 8 Tokyo Japan 81 works
  9. 9 Moscow Russia 76 works
  10. 10 Chengdu China 76 works

Where it is the local speciality

  1. XinxiangCN · 61.6 works41×
  2. TaizhouCN · 21.7 works29×
  3. RegensburgDE · 27.7 works15×
  4. MünsterDE · 41.3 works13×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Radical Photochemical Reactions than the world average.

See Radical Photochemical Reactions on the map

Where is the best place to study Radical Photochemical Reactions?

Among universities, judged by research, University of Münster, Nankai University and Henan Normal University score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%50%100%mean 49.37%fractional works in this node (log) →share in the world top 10% →University of Münster: 39, 54.0%Nankai University: 49, 41.5%Henan Normal University: 58, 45.8%University of Göttingen: 19, 48.9%Princeton University: 19, 72.9%Zhengzhou University: 40, 41.5%Zhejiang University of Technology: 41, 25.2%University of Regensburg: 28, 44.1%University of Basel: 10, 76.0%Central China Normal University: 20, 43.8%University of MünsterUniversity of Göttin…Henan Normal Univers…Nankai University
above the meannear itbelow it

One dot per university in the table below. The upper left is the interesting corner: small places doing unusually strong work.

#UniversityScoreTop 10%SpecialisationWorksGrowth
1 University of MünsterGermany 79.054.0%21.4×39 +241.3%
2 Nankai UniversityChina 75.541.5%14.0×49 +532.5%
3 Henan Normal UniversityChina 73.145.8%54.8×58 +117.2%
4 University of GöttingenGermany 71.148.9%13.5×19 +206.2%
5 Princeton UniversityUnited States 70.172.9%8.3×19 +128.5%
6 Zhengzhou UniversityChina 67.041.5%8.8×40 +162.5%
7 Zhejiang University of TechnologyChina 66.925.2%14.5×41 +225.2%
8 University of RegensburgGermany 66.344.1%31.3×28 +115.9%
9 University of BaselSwitzerland 65.676.0%6.5×10 +211.1%
10 Central China Normal UniversityChina 64.943.8%14.4×20 +168.2%

Universities only. Score blends excellence (30%), specialisation (25%), size (20%), growth (15%) and international reach (10%), 2015–2022; growth compares 2010–14 with 2015–19.

Is Radical Photochemical Reactions research growing?

Output in 2018–2022 was 58% higher than in 2013–2017, peaking in 2025. The fastest-growing topics are Radical Photochemical Reactions.

19801990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.