OPTIMADE provider "Crystallography Open Database" (id: cod
)
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General information
Short description: Open-access collection of crystal structures of organic, inorganic, metal-organic compounds and minerals, excluding biopolymers
Project homepage: https://www.crystallography.net/cod
Index Meta-Database URL:
http://providers.optimade.org/index-metadbs/cod
Number of structures: 502878
Detailed information
/info
)State of the /info
endpoint of the index meta-database
found
found
Index metaDB versionVersion of the index meta-database
v1
Index metaDB (/links
)State of the /links
endpoint of the index meta-database
found
found
Databases served by this provider
-
Crystallography Open Database (
cod, default sub-database
)https://www.crystallography.net/cod/optimade
Open-access collection of crystal structures of organic, inorganic, metal-organic compounds and minerals, excluding biopolymersValidationResults of validation Passed 56 / 59
❌ https://www.crystallography.net/cod/optimade/v1/structures?page_limit=4&response_fields=chemical_formula_hill,elements_ratios,assemblies,species,dimension_types,species_at_sites,last_modified,cartesian_site_positions,chemical_formula_descriptive,nelements,immutable_id,nsites,lattice_vectors,chemical_formula_anonymous,nperiodic_dimensions,elements,structure_features,chemical_formula_reduced
ValidationError: 3 validation errors for ValidatorStructureResponseMany
data -> 2 -> attributes -> elements -> 1
Only chemical symbols are allowed, you passed: D (type=value_error)
data -> 2 -> attributes -> chemical_formula_reduced
Cannot use unknown chemical symbols ['D'] in 'chemical_formula_reduced' (type=value_error)
data -> 2 -> attributes -> chemical_formula_hill
Cannot use unknown chemical symbols ['D'] in 'chemical_formula_hill' (type=value_error)
❌ https://www.crystallography.net/cod/optimade/v1/structures?filter=chemical_formula_descriptive%20%3C%20%22CaMgO6Si2%22
ResponseError: Entry 1000015 with value 'chemical_formula_descriptive': CaMgO6Si2 was not excluded by 'chemical_formula_descriptive < "CaMgO6Si2"'
❌ https://www.crystallography.net/cod/optimade/v1/;%20testing%20queries%20for%20structures-%3Estructure_features
ResponseError: Chosen entry had no value for 'structure_features' with support level SupportLevel.MUST and queryability SupportLevel.MUST, so cannot construct test queries. This field should potentially be removed from the `/info/structures` endpoint response.