# Most-cited Chemistry papers of 2018, with free PDFs

The 25 most-cited Chemistry research papers published in 2018, ranked by citations in OpenAlex, with their original abstracts and free PDFs where available.

1. [The PRIDE database and related tools and resources in 2019: improving support for quantification data](https://nerdi.pages.dev/paper/W2899760200) · 6,766 citations
2. [Stable Metal–Organic Frameworks: Design, Synthesis, and Applications](https://nerdi.pages.dev/paper/W2790308498) · 2,994 citations
3. [3d Transition Metals for C–H Activation](https://nerdi.pages.dev/paper/W2902770012) · 2,339 citations
4. [Techniques for extraction and isolation of natural products: a comprehensive review](https://nerdi.pages.dev/paper/W2802621137) · 2,307 citations · Free PDF
5. [Visible‐Light Photocatalysis: Does It Make a Difference in Organic Synthesis?](https://nerdi.pages.dev/paper/W2794166887) · 2,185 citations
6. [iProX: an integrated proteome resource](https://nerdi.pages.dev/paper/W2910730299) · 1,980 citations
7. [Expanded Theory of H- and J-Molecular Aggregates: The Effects of Vibronic Coupling and Intermolecular Charge Transfer](https://nerdi.pages.dev/paper/W2799566423) · 1,912 citations
8. [Metal–organic framework-based materials: superior adsorbents for the capture of toxic and radioactive metal ions](https://nerdi.pages.dev/paper/W2792976223) · 1,868 citations
9. [A comprehensive overview of directing groups applied in metal-catalysed C–H functionalisation chemistry](https://nerdi.pages.dev/paper/W2883408915) · 1,670 citations
10. [Molecularly Imprinted Polymers](https://nerdi.pages.dev/paper/W2894371501) · 1,662 citations
11. [Excited-state intramolecular proton-transfer (ESIPT) based fluorescence sensors and imaging agents](https://nerdi.pages.dev/paper/W2898257166) · 1,579 citations
12. [Electrifying Organic Synthesis](https://nerdi.pages.dev/paper/W2793967588) · 1,535 citations
13. [Catalysis and photocatalysis by metal organic frameworks](https://nerdi.pages.dev/paper/W2883042906) · 1,516 citations
14. [From fundamentals to applications: a toolbox for robust and multifunctional MOF materials](https://nerdi.pages.dev/paper/W2890175437) · 1,452 citations
15. [Energy transfer catalysis mediated by visible light: principles, applications, directions](https://nerdi.pages.dev/paper/W2886605610) · 1,423 citations · Free PDF
16. [Pd Metal Catalysts for Cross-Couplings and Related Reactions in the 21st Century: A Critical Review](https://nerdi.pages.dev/paper/W2788992869) · 1,363 citations
17. [Two-dimensional metal–organic framework nanosheets: synthesis and applications](https://nerdi.pages.dev/paper/W2811273000) · 1,353 citations
18. [Metal–Organic Frameworks for Separation](https://nerdi.pages.dev/paper/W2794728674) · 1,311 citations
19. [Nitrogen fixation and reduction at boron](https://nerdi.pages.dev/paper/W2788213189) · 1,298 citations
20. [Metal–Organic Frameworks for Photocatalysis and Photothermal Catalysis](https://nerdi.pages.dev/paper/W2906581948) · 1,291 citations
21. [Ordered macro-microporous metal-organic framework single crystals](https://nerdi.pages.dev/paper/W2784259290) · 1,212 citations
22. [Ethane/ethylene separation in a metal-organic framework with iron-peroxo sites](https://nerdi.pages.dev/paper/W2898261008) · 1,159 citations
23. [Visible‐Light‐Induced Organic Photochemical Reactions through Energy‐Transfer Pathways](https://nerdi.pages.dev/paper/W2803844243) · 1,156 citations
24. [Phosphine Organocatalysis](https://nerdi.pages.dev/paper/W4211235669) · 1,138 citations
25. [Modern Electrochemical Aspects for the Synthesis of Value‐Added Organic Products](https://nerdi.pages.dev/paper/W2801305065) · 1,100 citations

Canonical page: https://nerdi.pages.dev/papers/chemistry/most-cited-2018