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README.md

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+---
+configs:
+- config_name: default
+  data_files: "co/*.parquet"
+- config_name: info
+  data_files: "ds.parquet"
+license: cc-by-4.0
+tags:
+- molecular dynamics
+- mlip
+- interatomic potential
+pretty_name: Open Catalyst 2025 OC25 Train
+---
+### <details><summary>Cite this dataset </summary>Sahoo, S. J., Maroschin, M., Levine, D. S., Ulissi, Z., Zitnick, C. L., Varley, J. B., Gauthier, J. A., Govindarajan, N., and Shuaibi, M. _Open Catalyst 2025 OC25 Train_. ColabFit, 2025. https://doi.org/None</details>  
+#### This dataset has been curated and formatted for the ColabFit Exchange  
+#### This dataset is also available on the ColabFit Exchange:  
+https://materials.colabfit.org/id/DS_fanupene3rn7_0  
+#### Visit the ColabFit Exchange to search additional datasets by author, description, element content and more.  
+https://materials.colabfit.org
+<br><hr>  
+# Dataset  Name  
+Open Catalyst 2025 OC25 Train  
+### Description  
+The training split of the Open Catalyst 2025 (OC25) dataset for solid-liquid interfaces. OC25 consists of single-point DFT calculations of catalyst/solvent/ion/adsorbate structures, covering 88 elements, 8 solvents (water, methanol, CCl4, DMSO, benzene, hexane, THF, diethyl ether), 9 ionic species (Cs+, OH-, Li+, SO4^2-, Ca^2+, [Me4N]+, HCO3-, H+, F-), and adsorbates from the OC20 set plus reactive intermediates. Surfaces are derived from 39,821 Materials Project bulk structures with miller indices <= 3. Structures are highly off-equilibrium, sampled from short ab initio molecular dynamics simulations (10-50 steps, 1000K, NVT) or short DFT relaxations (5 ionic steps). The training split contains ~7.4 million structures filtered to total force drift < 1 eV/Å. All DFT calculations used VASP 6.3.2 with the non-spin-polarized RPBE functional supplemented with D3 dispersion correction (zero damping), plane wave cutoff 400 eV, EDIFF=1e-4 eV, k-point reciprocal density of 40, and a dipole correction in the z-direction.  
+### Dataset authors  
+Sushree Jagriti Sahoo, Mikael Maroschin, Daniel S. Levine, Zachary Ulissi, C. Lawrence Zitnick, Joel B Varley, Joseph A. Gauthier, Nitish Govindarajan, Muhammed Shuaibi  
+### Publication  
+https://doi.org/10.48550/arXiv.2509.17862  
+### Original data link  
+https://huggingface.co/facebook/OC25  
+### License  
+CC-BY-4.0  
+### Number of unique molecular configurations  
+7395509  
+### Number of atoms  
+1068208517  
+### Elements included  
+Ag, Al, Ar, As, Au, B, Ba, Be, Bi, Br, C, Ca, Cd, Ce, Cl, Co, Cr, Cs, Cu, F, Fe, Ga, Ge, H, He, Hf, Hg, I, In, Ir, K, Kr, La, Li, Mg, Mn, Mo, N, Na, Nb, Nd, Ne, Ni, O, Os, P, Pb, Pd, Pm, Pr, Pt, Rb, Re, Rh, Ru, S, Sb, Sc, Se, Si, Sn, Sr, Ta, Tc, Te, Ti, Tl, V, W, Xe, Y, Zn, Zr  
+### Properties included  
+energy, atomic forces  
+<br>
+<hr>  
+
+# Usage  
+- `ds.parquet` : Aggregated dataset information.  
+- `co/` directory: Configuration rows each include a structure, calculated properties, and metadata.  
+- `cs/` directory : Configuration sets are subsets of configurations grouped by some common characteristic. If `cs/` does not exist, no configurations sets have been defined for this dataset.  
+- `cs_co_map/` directory : The mapping of configurations to configuration sets (if defined).  
+<br>
+#### ColabFit Exchange documentation includes descriptions of content and example code for parsing parquet files:  
+- [Parquet parsing: example code](https://materials.colabfit.org/docs/how_to_use_parquet)  
+- [Dataset info schema](https://materials.colabfit.org/docs/dataset_schema)  
+- [Configuration schema](https://materials.colabfit.org/docs/configuration_schema)  
+- [Configuration set schema](https://materials.colabfit.org/docs/configuration_set_schema)  
+- [Configuration set to configuration mapping schema](https://materials.colabfit.org/docs/cs_co_mapping_schema)  

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