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functional group

group of atoms in a molecule which imparts specific chemical properties
Class type of: chemical group, role Q170409

Facts

10 properties
Instance of
class of chemical groups
Subclass of
chemical group, role
Part of
molecular entity[4]
Facet of
structure-activity relationship, molecular function[5][6]
Different from
radical, functional group, group[9][10][11]
On focus list of Wikimedia project
Wikipedia:Vital articles/Level/4[14]
P14541
4ImlJC[15]
Topic has template
Template:Functional groups[7]
Used by
chemical classification[8]
Wikidata usage instructions
This class and its subclasses describe the function a group performs within a molecule, not its constitution: the same structural fragment may or may not be a functional group depending on the parent structure and the reaction considered. Assign them with “subject has role” (P2868), not with “subclass of” (P279). State the group’s constitution separately, using a structural class under “chemical group” (Q23005640)., Ta klasa i jej podklasy opisują funkcję, jaką grupa pełni w cząsteczce, a nie jej budowę – ten sam fragment strukturalny bywa grupą funkcyjną albo nie, zależnie od struktury macierzystej i rozważanej reakcji. Przypisuj je za pomocą „podmiot ma rolę” (P2868), a nie „podklasa dla” (P279). Budowę grupy opisz osobno, klasą strukturalną spod „grupa chemiczna” (Q23005640).[12][13]
🏷️ Also known as
en radical en group en functional group ar مجموعة ذرية ar المجموعة الوظيفية ar مجموعة فعالة ar مجموعات وظيفية ar مجموعة وظيفية ar مجموعه وظيفيه ar المجموعات الفعالة ar زمرة وظيفية ar مجموعة مميزة ar Functional group cs Chemická skupina cs funkční skupina da kemisk stofgruppe da funktionel gruppe de funktionelle Gruppe de charakteristische Gruppe el Χαρακτηριστική ομάδα
🔖 Identifiers · 25
Library of Congress authority ID
sh91003889
GND ID
4155684-7
OpenAlex ID
C2777332933
BNCF Thesaurus ID
26978
BabelNet ID
00018111n
Basisklassifikation
35.61
Bibliothèque nationale de France ID
12277231r
Brockhaus Enzyklopädie online ID
rest-chemie
Dewey Decimal Classification
547.2, 541.39
Encyclopaedia Beliana ID
funkcna-skupina
Encyclopedia of China (Third Edition) ID
414292
Encyclopædia Britannica Online ID
science/functional-group
Show all 25 identifiers +13
Encyclopædia Universalis ID
fonction-chimie
Freebase ID
/m/02ydd
Gran Enciclopèdia Catalana ID
grup-funcional
Gran Enciclopèdia Catalana ID (former scheme)
0233131
Great Russian Encyclopedia Online ID (2017)
4725737
IUPAC Gold Book ID
F02555
JSTOR topic ID (archived)
functional-groups
KBpedia ID
FunctionalGroup-Molecular
National Library of Israel J9U ID
987007532223105171
OmegaWiki Defined Meaning
427527
PSH ID
5915
Topic's main category
Category:Functional groups
Yale LUX ID
concept/d6ba0360-394e-49d4-9d38-cb366732bd25

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Subtypes 12
acyl group, chromophore, leaving group, methine, protecting group, amino group, sulfonyl group, organyl group +4 more
Examples 8
hydroxyl, nitroso group, methylene bridge, trimethylsilyl, methylenedioxy, nitro group, carbamoyl chloride, isothiouronium
Different from 2
group, radical
Subclass of 2
molecular entity, chemical group
← Different from 2
group, radical
Facet of 1
structure-activity relationship
On focus list of Wikimedia project 1
Wikipedia:Vital articles/Level/4
Part of 1
molecular entity
Topic has template 1
Template:Functional groups
Topic's main category 1
Category:Functional groups
Used by 1
chemical classification
← Category's main topic 1
Category:Functional groups
← Depicts 1
chemical symbol
← Template has topic 1
Template:Functional groups
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Summary

functional group is a class of chemical groups[1]. It is a type of moiety[2] and role[3].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [13] ↑ . wikidata.org.
  13. [14] ↑ . wikidata.org.
  14. [15] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). functional group. Retrieved November 2, 2026, from https://4ort.xyz/entity/functional-group
MLA “functional group.” 4ort.xyz Knowledge Graph, 4ort.xyz, 2 Nov. 2026, https://4ort.xyz/entity/functional-group.
BibTeX @misc{4ortxyz_functional-group_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{functional group}}, year = {2026}, url = {https://4ort.xyz/entity/functional-group}, note = {Accessed: 2026-11-02}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): functional group — https://4ort.xyz/entity/functional-group (retrieved 2026-11-02)

Canonical URL: https://4ort.xyz/entity/functional-group · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 5w ago · Wostr · 2026-09-27 view diff on Wikidata ↗
    Wikidata usage instructions → {'lang': 'en', 'text': 'This class and its subclasses descri, {'lang': 'pl', 'text': 'Ta klasa i jej podklasy opisują funk
    Wikipedia languages → ['af', 'ar', 'ast', 'awa', 'bcl', 'bg', 'bn', 'bs', 'ca', 'ckb', 'cs', 'cy', 'da
    Subclass of → chemical group, role
    WordNet 3.1 Synset ID → —
    + 1 other property edited (see Wikidata diff for full list)
    "/* wbsetclaim-update:2||1|1 */ IUPAC Gold Book ID: F02555"
  2. 5w ago · Wostr · 2026-09-26 view diff on Wikidata ↗
    Instance of → class of chemical groups
    "/* wbsetclaim-create:2||1 */ Instance of: class of chemical groups"
  3. 6w ago · KrBot bot · 2026-09-22 view diff on Wikidata ↗
    Subclass of → chemical group, role
    "/* wbsetclaimvalue:1| */ Subclass of: chemical group, разрешение перенаправления / resolving redirect chemical group → chemical group ([[:toollabs:editgroups/b/KrBotResolvingRedirect/Q141105516_Q2"
  4. 6w ago · Wostr · 2026-09-19 view diff on Wikidata ↗
    Subclass of → chemical group, role
    "/* wbremoveclaims-remove:1| */ Subclass of: chemical group"
  5. 11w ago · عُثمان · 2026-08-16 view diff on Wikidata ↗
    Subclass of → chemical group, role
    Basisklassifikation → 35.61
    "/* wbsetclaim-update:2||1 */ Subclass of: chemical group"
  6. 16w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 → 4ImlJC
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
  7. 23w ago · Twofivesixbot bot · 2026-05-24 view diff on Wikidata ↗
    Facet of → structure-activity relationship, molecular function
    Part of → molecular entity
    On focus list of Wikimedia project → Wikipedia:Vital articles/Level/4
    Used by → —
    + 8 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|3 */ National Library of Israel J9U ID: 987007532223105171, mv to monolingual text names on J9U statements"
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