Enum: HardOrSoftEnum

HSAB (Hard Soft Acid Base) classification

URI: valuesets:HardOrSoftEnum

Permissible Values

Value	Meaning	Description
HARD	None	Hard acids/bases (small, high charge density)
SOFT	None	Soft acids/bases (large, low charge density)
BORDERLINE	None	Borderline acids/bases

Slots

Name	Description
hard_or_soft	HSAB (Hard Soft Acid Base) classification

Identifier and Mapping Information

Schema Source

• from schema: https://w3id.org/linkml/valuesets

LinkML Source

name: HardOrSoftEnum
description: HSAB (Hard Soft Acid Base) classification
from_schema: https://w3id.org/linkml/valuesets
rank: 1000
permissible_values:
  HARD:
    text: HARD
    description: Hard acids/bases (small, high charge density)
    annotations:
      examples:
        tag: examples
        value: H+, Li+, Mg2+, Al3+, F-, OH-
      polarizability:
        tag: polarizability
        value: low
  SOFT:
    text: SOFT
    description: Soft acids/bases (large, low charge density)
    annotations:
      examples:
        tag: examples
        value: Cu+, Ag+, Au+, I-, S2-
      polarizability:
        tag: polarizability
        value: high
  BORDERLINE:
    text: BORDERLINE
    description: Borderline acids/bases
    annotations:
      examples:
        tag: examples
        value: Fe2+, Co2+, Ni2+, Cu2+, Zn2+
      polarizability:
        tag: polarizability
        value: intermediate