Most-cited Chemistry papers of 2021, with free PDFs

The 25 most-cited Chemistry research papers published in 2021, ranked by citations in OpenAlex, with their original abstracts and free PDFs where available.

1. The PRIDE database resources in 2022: a hub for mass spectrometry-based proteomics evidences
   Yasset Pérez‐Riverol, Jingwen Bai et al. · 2021 · 6,206 citations
2. CrystalExplorer : a program for Hirshfeld surface analysis, visualization and quantitative analysis of molecular crystals
   Peter R. Spackman, Michael J. Turner et al. · 2021 · 5,135 citations
3. The HITRAN2020 molecular spectroscopic database
   Iouli E. Gordon, Laurence S. Rothman et al. · 2021 · 2,495 citations
4. Metallaphotoredox: The Merger of Photoredox and Transition Metal Catalysis
   Amy Chan, Ian B. Perry et al. · 2021 · 1,756 citations
5. Metal–Organic Framework-Based Hierarchically Porous Materials: Synthesis and Applications
   Guorui Cai, Peng Yan et al. · 2021 · 1,644 citations
6. White Analytical Chemistry: An approach to reconcile the principles of Green Analytical Chemistry and functionality
   Paweł Mateusz Nowak, Renata Wietecha‐Posłuszny et al. · 2021 · 1,296 citations
7. Electrocatalysis as an enabling technology for organic synthesis
   Luiz F. T. Novaes, Jinjian Liu et al. · 2021 · 1,283 citations
8. The Current Status of MOF and COF Applications
   Ralph Freund, Orysia T. Zaremba et al. · 2021 · 1,202 citations · Free PDF
9. iProX in 2021: connecting proteomics data sharing with big data
   Tao Chen, Jie Ma et al. · 2021 · 1,134 citations
10. Recent Advances in Catalytic Asymmetric Construction of Atropisomers
    Jun Kee Cheng, Shao‐Hua Xiang et al. · 2021 · 1,051 citations
11. Photoredox-Catalyzed C–H Functionalization Reactions
    Natalie Holmberg‐Douglas, David A. Nicewicz · 2021 · 988 citations
12. Two-Dimensional Metal-Organic Framework Materials: Synthesis, Structures, Properties and Applications
    Gouri Chakraborty, In‐Hyeok Park et al. · 2021 · 932 citations
13. Metal–Organic Frameworks for Drug Delivery: A Design Perspective
    Harrison Lawson, S. Patrick Walton et al. · 2021 · 921 citations
14. Organic Electrochemistry: Molecular Syntheses with Potential
    Cuiju Zhu, Nate W. J. Ang et al. · 2021 · 861 citations
15. Visible Light-Induced Transition Metal Catalysis
    Kelvin Pak Shing Cheung, Sumon Sarkar et al. · 2021 · 860 citations
16. Reducing the resistance for the use of electrochemical impedance spectroscopy analysis in materials chemistry
    Nadia O. Laschuk, E. Bradley Easton et al. · 2021 · 845 citations
17. C–H Activation: Toward Sustainability and Applications
    Toryn Dalton, Teresa Faber et al. · 2021 · 833 citations
18. Molecular Imprinting: Green Perspectives and Strategies
    Maryam Arabi, Abbas Ostovan et al. · 2021 · 787 citations
19. Technological Innovations in Photochemistry for Organic Synthesis: Flow Chemistry, High-Throughput Experimentation, Scale-up, and Photoelectrochemistry
    Laura Buglioni, Fabian Raymenants et al. · 2021 · 783 citations
20. Proton-Coupled Electron Transfer Guidelines, Fair and Square
    Robin Tyburski, Tianfei Liu et al. · 2021 · 715 citations
21. Twisted intramolecular charge transfer (TICT) and twists beyond TICT: from mechanisms to rational designs of bright and sensitive fluorophores
    Chao Wang, Weijie Chi et al. · 2021 · 715 citations
22. Chiroptical Properties of Symmetric Double, Triple, and Multiple Helicenes
    Tadashi Mori · 2021 · 701 citations
23. Metal–organic frameworks as photoluminescent biosensing platforms: mechanisms and applications
    Yifang Zhao, Heng Zeng et al. · 2021 · 699 citations
24. Evolution of water structures in metal-organic frameworks for improved atmospheric water harvesting
    Nikita Hanikel, Xiaokun Pei et al. · 2021 · 695 citations
25. Applications of Halogen-Atom Transfer (XAT) for the Generation of Carbon Radicals in Synthetic Photochemistry and Photocatalysis
    Fabio Juliá, Timothée Constantin et al. · 2021 · 628 citations

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