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End of preview. Expand in Data Studio
Cite this dataset
Levine, D. S., Liesen, N., Chua, L., Diffenderfer, J., Ingolfsson, H. I., Kroonblawd, M. P., Kumar, N., Maiti, A., Mohottalalage, S. S., Shuaibi, M., Essen, B. V., Wood, B. M., Zitnick, C. L., Blau, S. M., and Antoniuk, E. R. OPoly26-val. ColabFit, 2026. https://doi.org/None
Cite this dataset
Levine, D. S., Liesen, N., Chua, L., Diffenderfer, J., Ingolfsson, H. I., Kroonblawd, M. P., Kumar, N., Maiti, A., Mohottalalage, S. S., Shuaibi, M., Essen, B. V., Wood, B. M., Zitnick, C. L., Blau, S. M., and Antoniuk, E. R. OPoly26-val. ColabFit, 2026. https://doi.org/NoneThis 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_oinzbpqoh8c8_0
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https://materials.colabfit.org
Dataset Name
OPoly26-val
Description
Validation set of the Open Polymers 2026 (OPoly26) dataset. OPoly26 contains over 6.57 million density functional theory (DFT) calculations on cluster fragments of up to 360 atoms derived from polymeric systems. The dataset encompasses variations in monomer composition, polymerization degree, chain architectures, and solvation environments to improve machine learning model performance for polymer property prediction. Calculations were performed at the B97M-V/def2-SVP level of theory using ORCA.
Dataset authors
Daniel S. Levine, Nicholas Liesen, Lauren Chua, James Diffenderfer, Helgi I. Ingolfsson, Matthew P. Kroonblawd, Nitesh Kumar, Amitesh Maiti, Supun S. Mohottalalage, Muhammed Shuaibi, Brian Van Essen, Brandon M. Wood, C. Lawrence Zitnick, Samuel M. Blau, Evan R. Antoniuk
Publication
https://doi.org/10.48550/arXiv.2512.23117
Original data link
https://huggingface.co/facebook/OMol25
License
FAIR Chemistry License
Number of unique molecular configurations
210302
Number of atoms
37298046
Elements included
Al, B, Br, C, Ca, Cl, Co, Cs, Cu, F, Fe, H, I, K, La, Li, Mg, N, Na, Ni, O, P, S, Sr, Zn
Properties included
energy, atomic forces
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. Ifcs/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).
ColabFit Exchange documentation includes descriptions of content and example code for parsing parquet files:
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