Class: chemical element (ChemicalElement)
generic form of an atom, with unspecified neutron or charge
Inheritance
- DomainEntity
- PhysicochemicalEntity
- ChemicalEntity [ OwlClass]
- Atom
- PartiallySpecifiedAtom
- ChemicalElement
- PartiallySpecifiedAtom
- Atom
- ChemicalEntity [ OwlClass]
- PhysicochemicalEntity
Slots
Name | Cardinality and Range | Description | Inheritance |
---|---|---|---|
in_periodic_table_group | 0..1 PeriodicTableGroup |
which number in periodic table column | direct |
in_periodic_table_block | 0..1 PeriodicTableBlockEnum |
block of periodic table unified by the orbitals their valence electrons or va... | direct |
atomic_number | 0..1 Count |
number of protons in an atom | Atom |
symbol | 0..1 String |
E | Atom |
name | 0..1 String |
name of chemical entity | Atom, DomainEntity |
has_nuclear_parts | 0..1 SubatomicParticleOccurrence |
Atom | |
IUPAC_name | 0..1 String |
ChemicalEntity | |
is_radical | 0..1 Boolean |
ChemicalEntity | |
has_chemical_role | 0..1 ChemicalRole |
ChemicalEntity | |
inchi_string | 0..1 ChemicalEncoding |
ChemicalEntity | |
inchi_chemical_sublayer | 0..1 recommended String |
The part of an InChI string that represents the chemical formula, occurring a... | ChemicalEntity |
smiles_string | 0..1 ChemicalEncoding |
A string encoding of a molecular graph, no chiral or isotopic information | ChemicalEntity |
empirical_formula | 0..1 ChemicalEncoding |
A chemical formula where numbers denote relative proportion of atoms | ChemicalEntity |
has_major_microspecies_at_pH7_3 | * ChemicalElement |
Links different variants of the same chemical in different protonation states... | ChemicalEntity |
molecular_mass | 0..1 Float |
The sum of the relative atomic masses of the constituent atoms of a molecule | ChemicalEntity |
owl_subclass_of | 0..1 OwlClass |
Holds between C and P if C owl:subClassOf P | OwlClass |
id | 1 String |
DomainEntity | |
type | 0..1 Uriorcurie |
DomainEntity |
Usages
used by | used in | type | used |
---|---|---|---|
ChemicalElement | has_major_microspecies_at_pH7_3 | range | ChemicalElement |
Isotope | has_element | range | ChemicalElement |
Isobar | has_element | range | ChemicalElement |
MonoatomicIon | has_element | range | ChemicalElement |
AtomAnion | has_element | range | ChemicalElement |
AtomCation | has_element | range | ChemicalElement |
Aliases
- element
- generic atom
Examples
Value |
---|
carbon |
nickel |
See Also
Identifier and Mapping Information
Schema Source
- from schema: https://w3id.org/chemrof
Mappings
Mapping Type | Mapped Value |
---|---|
self | chemrof:ChemicalElement |
native | chemrof:ChemicalElement |
exact | wd:Q11344, gc:Element |
LinkML Source
Direct
name: ChemicalElement
description: generic form of an atom, with unspecified neutron or charge
title: chemical element
examples:
- value: carbon
- value: nickel
from_schema: https://w3id.org/chemrof
see_also:
- https://en.wikipedia.org/wiki/Chemical_element
aliases:
- element
- generic atom
exact_mappings:
- wd:Q11344
- gc:Element
is_a: PartiallySpecifiedAtom
slots:
- in_periodic_table_group
- in_periodic_table_block
slot_usage:
symbol:
name: symbol
description: E.g. O, K, Ge
aliases:
- atomic symbol
exact_mappings:
- wd:P246
pattern: ^[A-Z][a-z]*
in_periodic_table_group:
name: in_periodic_table_group
description: which number in periodic table column
exact_mappings:
- bo:group
range: PeriodicTableGroup
in_periodic_table_block:
name: in_periodic_table_block
description: block of periodic table unified by the orbitals their valence electrons
or vacancies lie in
exact_mappings:
- bo:block
range: PeriodicTableBlockEnum
boiling_point_in_celcius:
name: boiling_point_in_celcius
range: float
melting_point_in_celcius:
name: melting_point_in_celcius
range: float
standard_atomic_weight:
name: standard_atomic_weight
range: float
mass:
name: mass
range: float
monoisotopic_mass:
name: monoisotopic_mass
range: float
electron_configuration:
name: electron_configuration
range: string
has_stereocenter:
name: has_stereocenter
range: Stereocenter
multivalued: true
has_major_microspecies_at_pH7_3:
name: has_major_microspecies_at_pH7_3
range: ChemicalElement
defining_slots:
- atomic_number
unique_keys:
main:
unique_key_name: main
unique_key_slots:
- atomic_number
mass:
unique_key_name: mass
unique_key_slots:
- atomic_number
Induced
name: ChemicalElement
description: generic form of an atom, with unspecified neutron or charge
title: chemical element
examples:
- value: carbon
- value: nickel
from_schema: https://w3id.org/chemrof
see_also:
- https://en.wikipedia.org/wiki/Chemical_element
aliases:
- element
- generic atom
exact_mappings:
- wd:Q11344
- gc:Element
is_a: PartiallySpecifiedAtom
slot_usage:
symbol:
name: symbol
description: E.g. O, K, Ge
aliases:
- atomic symbol
exact_mappings:
- wd:P246
pattern: ^[A-Z][a-z]*
in_periodic_table_group:
name: in_periodic_table_group
description: which number in periodic table column
exact_mappings:
- bo:group
range: PeriodicTableGroup
in_periodic_table_block:
name: in_periodic_table_block
description: block of periodic table unified by the orbitals their valence electrons
or vacancies lie in
exact_mappings:
- bo:block
range: PeriodicTableBlockEnum
boiling_point_in_celcius:
name: boiling_point_in_celcius
range: float
melting_point_in_celcius:
name: melting_point_in_celcius
range: float
standard_atomic_weight:
name: standard_atomic_weight
range: float
mass:
name: mass
range: float
monoisotopic_mass:
name: monoisotopic_mass
range: float
electron_configuration:
name: electron_configuration
range: string
has_stereocenter:
name: has_stereocenter
range: Stereocenter
multivalued: true
has_major_microspecies_at_pH7_3:
name: has_major_microspecies_at_pH7_3
range: ChemicalElement
attributes:
in_periodic_table_group:
name: in_periodic_table_group
description: which number in periodic table column
title: in periodic table group
from_schema: https://w3id.org/chemrof
exact_mappings:
- bo:group
rank: 1000
alias: in_periodic_table_group
owner: ChemicalElement
domain_of:
- AtomGroupingByPeriodicTableGroup
- ChemicalElement
range: PeriodicTableGroup
in_periodic_table_block:
name: in_periodic_table_block
description: block of periodic table unified by the orbitals their valence electrons
or vacancies lie in
title: in periodic table block
from_schema: https://w3id.org/chemrof
exact_mappings:
- bo:block
rank: 1000
alias: in_periodic_table_block
owner: ChemicalElement
domain_of:
- AtomGroupingByPeriodicTableBlock
- ChemicalElement
range: PeriodicTableBlockEnum
atomic_number:
name: atomic_number
description: number of protons in an atom
title: atomic number
from_schema: https://w3id.org/chemrof
aliases:
- proton number
- Z
mappings:
- CHEMINF:000079
exact_mappings:
- wd:P1086
rank: 1000
is_a: subatomic_particle_count
domain: Atom
slot_uri: bo:atomicNumber
alias: atomic_number
owner: ChemicalElement
domain_of:
- Atom
range: Count
symbol:
name: symbol
description: E.g. O, K, Ge
title: symbol
from_schema: https://w3id.org/chemrof
aliases:
- atomic symbol
exact_mappings:
- wd:P246
rank: 1000
is_a: information_property
slot_uri: bo:symbol
alias: symbol
owner: ChemicalElement
domain_of:
- Atom
range: string
pattern: ^[A-Z][a-z]*
name:
name: name
description: name of chemical entity. E.g. nickel, carbon-16
title: name
from_schema: https://w3id.org/chemrof
close_mappings:
- bo:symbol
rank: 1000
is_a: information_property
slot_uri: rdfs:label
alias: name
owner: ChemicalElement
domain_of:
- DomainEntity
- GroupingClass
- Atom
- AtomOccurrence
range: string
has_nuclear_parts:
name: has_nuclear_parts
title: has nuclear parts
from_schema: https://w3id.org/chemrof
rank: 1000
is_a: property_of_atom
domain: Atom
alias: has_nuclear_parts
owner: ChemicalElement
domain_of:
- Atom
range: SubatomicParticleOccurrence
IUPAC_name:
name: IUPAC_name
title: IUPAC name
from_schema: https://w3id.org/chemrof
exact_mappings:
- MI:2007
rank: 1000
is_a: information_property
slot_uri: CHEMINF:000107
alias: IUPAC_name
owner: ChemicalElement
domain_of:
- ChemicalEntity
range: string
is_radical:
name: is_radical
title: is radical
from_schema: https://w3id.org/chemrof
rank: 1000
domain: ChemicalEntity
alias: is_radical
owner: ChemicalElement
domain_of:
- ChemicalEntity
range: boolean
has_chemical_role:
name: has_chemical_role
title: has chemical role
from_schema: https://w3id.org/chemrof
rank: 1000
alias: has_chemical_role
owner: ChemicalElement
domain_of:
- ChemicalEntity
range: ChemicalRole
inchi_string:
name: inchi_string
title: InChi
todos:
- declare this as a key once compound_key is introduced to linkml
from_schema: https://w3id.org/chemrof
see_also:
- https://chemistry.stackexchange.com/questions/151072/can-cis-trans-isomers-have-same-inchi
aliases:
- InChi
exact_mappings:
- OntoRXN:hasInChi
rank: 1000
is_a: chemical_formula
domain: ChemicalEntity
alias: inchi_string
owner: ChemicalElement
domain_of:
- ChemicalEntity
range: ChemicalEncoding
inchi_chemical_sublayer:
name: inchi_chemical_sublayer
annotations:
inchi.index:
tag: inchi.index
value: 2
description: The part of an InChI string that represents the chemical formula,
occurring after the version string. E.g. C6H12O6 for glucose
title: inchi chemical sublayer
comments:
- in the case of hydrates, the dot separates the formula of the compound from
the water molecules. For example, CuSO₄·5H₂O represents copper(II) sulfate pentahydrate,
indicating that there are five water molecules associated with each copper(II)
sulfate unit in the crystal.
- 'Salt Formulations: Dots can also be used to denote the proportions in which
different components are combined to form a salt. For instance, "CaCl₂·2AgNO₃"
would suggest a complex formed from one unit of calcium chloride and two units
of silver nitrate, though this particular example is more illustrative than
practical.'
- 'Coordination Complexes: In coordination chemistry, dots can separate the metal
complex from its counterions or ligands that are not directly bonded to the
metal center. For example, "[Co(NH₃)₆]Cl₃" indicates a complex of cobalt with
six ammonia ligands, and the three chloride ions are counterions. If written
as "[Co(NH₃)₆]·3Cl", it would similarly denote the presence of three chloride
ions associated with the complex, though this notation is less common'
- 'Molecular Assemblies: For certain supramolecular structures or assemblies,
dots might be used to indicate a non-covalent association of components. This
usage is less common and more context-dependent'
from_schema: https://w3id.org/chemrof
rank: 1000
is_a: inchi_sublayer_in_main_layer
alias: inchi_chemical_sublayer
owner: ChemicalElement
domain_of:
- ChemicalEntity
- StandardInchiObject
- EntityWithAtomsEnumerated
range: string
required: false
recommended: true
pattern: ^[A-Z0-9\.]+$
smiles_string:
name: smiles_string
description: A string encoding of a molecular graph, no chiral or isotopic information.
There are usually a large number of valid SMILES which represent a given structure.
For example, CCO, OCC and C(O)C all specify the structure of ethanol.
title: smiles string
comments:
- a problematic set of structures to describe using SMILES notation is those which
cannot be easily described using molecular graphs (see “Limitations of molecular
graph representations” section), such as organometallic compounds and ionic
salts.
from_schema: https://w3id.org/chemrof
rank: 1000
is_a: chemical_formula
domain: ChemicalEntity
alias: smiles_string
owner: ChemicalElement
domain_of:
- ChemicalEntity
range: ChemicalEncoding
empirical_formula:
name: empirical_formula
description: A chemical formula where numbers denote relative proportion of atoms.
E.g. CH2O for glucose
title: empirical formula
from_schema: https://w3id.org/chemrof
rank: 1000
is_a: chemical_formula
domain: ChemicalEntity
alias: empirical_formula
owner: ChemicalElement
domain_of:
- ChemicalEntity
range: ChemicalEncoding
has_major_microspecies_at_pH7_3:
name: has_major_microspecies_at_pH7_3
description: Links different variants of the same chemical in different protonation
states, where the target of this link is the (predicited) to be most common
protonation state for this chemical at a pH of 7.3. This link may point to it's
source. Connects an acid to the form that is stable at physiological pH (7.3).
E.g. citric acid has physiological base citrate(3-)
title: has physiologically stable form
from_schema: https://w3id.org/chemrof
see_also:
- https://ftp.expasy.org/databases/rhea/tsv/chebi_pH7_3_mapping.tsv
aliases:
- protonation neutral form of
- has Ph 7.3 mapping
rank: 1000
is_a: acid_form_of
domain: ChemicalEntity
alias: has_major_microspecies_at_pH7_3
owner: ChemicalElement
domain_of:
- ChemicalEntity
inverse: major_microspecies_at_pH7_3_of
range: ChemicalElement
multivalued: true
molecular_mass:
name: molecular_mass
description: The sum of the relative atomic masses of the constituent atoms of
a molecule.
title: molecular mass
from_schema: https://w3id.org/chemrof
exact_mappings:
- NCIT:C28272
- FIX:0000270
- chebi.property:mass
rank: 1000
is_a: molecular_property
alias: molecular_mass
owner: ChemicalElement
domain_of:
- ChemicalEntity
range: float
unit:
ucum_code: u
owl_subclass_of:
name: owl_subclass_of
description: 'Holds between C and P if C owl:subClassOf P. Note that in this model,
most classes are metaclasses (see ''owl class''), where these metaclasses may
represent *groupings* or specific countable elements or species. We provide
two different sub-properties of subclass of for two cases: (1) subtype_of, which
connects grouping classes (e.g. alkane is_a hydrocarbon; alpha-amino-acid is_a
amino-acid), (2) classified_by, which connects a specific element to a grouping
class (e.g. methane is_a hydrocarbon; iron is_a metal; serine is_a amino-acid)'
title: owl subclass of
from_schema: https://w3id.org/chemrof
aliases:
- is a
exact_mappings:
- rdfs:subClassOf
narrow_mappings:
- bo:family
rank: 1000
is_a: classification_relationship
mixin: true
domain: OwlClass
alias: owl_subclass_of
owner: ChemicalElement
domain_of:
- OwlClass
range: OwlClass
id:
name: id
title: id
from_schema: https://w3id.org/chemrof
mappings:
- schema:identifier
rank: 1000
is_a: information_property
identifier: true
alias: id
owner: ChemicalElement
domain_of:
- DomainEntity
- GroupingClass
- ChemicalGroupingClass
range: string
required: true
type:
name: type
title: type
from_schema: https://w3id.org/chemrof
rank: 1000
designates_type: true
alias: type
owner: ChemicalElement
domain_of:
- DomainEntity
range: uriorcurie
defining_slots:
- atomic_number
unique_keys:
main:
unique_key_name: main
unique_key_slots:
- atomic_number
mass:
unique_key_name: mass
unique_key_slots:
- atomic_number