Extended Hermann-Mauguin symbol

Property name: Extended Hermann-Mauguin symbol
Description: The setting-specific extended Hermann-Mauguin symbol for the space-group setting.
Type: string

Extended Hermann-Mauguin symbols give additional symmetry-element information compared with the short symbol. Multi-line values preserve line breaks and spacing used to align the extended symbol components. Unlike the short and full symbols, extended symbols are defined per setting only, so no hm_extended_std standard-symbol counterpart exists.

{
    "$id": "https://schemas.anyterial.se/defs/v0.1/properties/spacegroups/hm_extended",
    "$schema": "https://schemas.optimade.org/meta/v1.3/optimade/property_definition.json",
    "title": "Extended Hermann-Mauguin symbol",
    "x-optimade-type": "string",
    "x-compatibility": [
        "https://schemas.optimade.org/defs/v1.2/properties/optimade/structures/space_group_symbol_hermann_mauguin_extended"
    ],
    "x-optimade-definition": {
        "kind": "property",
        "version": "0.1.0",
        "format": "1.3",
        "name": "hm_extended",
        "label": "hm_extended_spacegroups"
    },
    "type": [
        "string",
        "null"
    ],
    "description": "The setting-specific extended Hermann-Mauguin symbol for the space-group setting.\n\nExtended Hermann-Mauguin symbols give additional symmetry-element information compared with the short symbol.\nMulti-line values preserve line breaks and spacing used to align the extended symbol components.\nUnlike the short and full symbols, extended symbols are defined per setting only, so no `hm_extended_std` standard-symbol counterpart exists.",
    "x-optimade-unit": "inapplicable",
    "examples": [
        "P 1",
        "C 1 2 1\n  21"
    ]
}

Extended Hermann-Mauguin symbol (property)