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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: COLL train
---
### <details><summary>Cite this dataset </summary>Gasteiger, J., Giri, S., Margraf, J. T., and Günnemann, S. _COLL train_. ColabFit, 2023. https://doi.org/10.60732/f95867ef</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_cifhpgzw3ckj_0
#### Visit the ColabFit Exchange to search additional datasets by author, description, element content and more.
https://materials.colabfit.org
<br><hr>
# Dataset Name
COLL train
### Description
Training set from COLL. Consists of configurations taken from molecular collisions of different small organic molecules. Energies and forces for 140,000 random snapshots taken from these trajectories were recomputed with density functional theory (DFT). These calculations were performed with the revPBE functional and def2-TZVP basis, including D3 dispersion corrections
### Dataset authors
Johannes Gasteiger, Shankari Giri, Johannes T. Margraf, Stephan Günnemann
### Publication
https://doi.org/10.48550/arXiv.2011.14115
### Original data link
https://doi.org/10.6084/m9.figshare.13289165.v1
### License
CC-BY-4.0
### Number of unique molecular configurations
119965
### Number of atoms
1225234
### Elements included
C, H, O
### Properties included
energy, atomization 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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