Wikidata:Property proposal/conjugate acid
conjugate acid
[edit]Originally proposed at Wikidata:Property proposal/Natural science
| Description | species formed by accepting a proton (H⁺) |
|---|---|
| Represents | conjugate acid (Q2014867) |
| Data type | Item |
| Domain | chemical compound (Q11173) |
| Allowed values | chemical compound (Q11173) |
| Example | amide ion (Q4026895) → ammonia (Q4087) ammonia (Q4087) → ammonium cation (Q190901) phenolate (Q27122100) → phenol (Q130336) |
conjugate base
[edit]Originally proposed at Wikidata:Property proposal/Natural science
| Description | species formed by losing a proton (H⁺) |
|---|---|
| Represents | conjugate base (Q33113572) |
| Data type | Item |
| Domain | chemical compound (Q11173) |
| Allowed values | chemical compound (Q11173) |
| Example | ammonium cation (Q190901) → ammonia (Q4087) ammonia (Q4087) → amide ion (Q4026895) phenol (Q130336) → phenolate (Q27122100) |
- Motivation
Conjugate acid / base relation is the fundamental relation of acids and bases in Brønsted–Lowry theory. Introducing proposed properties would allow linking appropriate pairs of items and easily traversing chains of conjugate pairs, such as NH2- ⇌ NH3 ⇌ NH4+ (amide ion (Q4026895) ⇌ ammonia (Q4087) ⇌ ammonium cation (Q190901)). Currently there is no relation between those items in the database. As a consequence, it is difficult to get the value of pKb of a base – pKa value is assigned to the conjugate acid and finding the corresponding item is difficult. Kubaello (talk) 16:36, 27 June 2017 (UTC)
Notified participants of WikiProject Chemistry
- Discussion
Comment Maybe the properties should be named Brønsted–Lowry acid / Brønsted–Lowry base to avoid confusion with Lewis acids / bases. Kubaello (talk) 16:36, 27 June 2017 (UTC)- Comment One "represents" is wrong. --Egon Willighagen (talk) 14:08, 28 June 2017 (UTC)
- I think that conjugate acid (Q2014867) represents the conjugate acid / base pair, or the subject in general - at least this is what labels (Korresponderende syre-basepar, Conjugate acid, Base conjugada) and contents of linked wp articles suggest. I'm not aware of separate wd items for conjugate acid and conjugate base. conjugate acid (Q2014867) seemed to be the best match. Kubaello (talk) 18:59, 28 June 2017 (UTC)
Support I think the names are fine; this seems very useful. ArthurPSmith (talk) 19:22, 28 June 2017 (UTC)- Are their other databases that store the same relation? If so, how do they name it? ChristianKl (talk) 10:54, 29 June 2017 (UTC)
- Support - though shouldn't the second one have "Represents - conjugate base" or did I misunderstand something? Anyway, this is a fundamental relationship in chemistry, so I support the introduction of these two. Regarding Kubaello, I think that the concept only applies to Bronsted-Lowry theory - there is no such thing as a conjugate acid in Lewis AB theory - so I don't think confusion is possible. Walkerma (talk) 23:07, 1 July 2017 (UTC)
- Comment As above, I prefer two properties, one for conjugate acid (Q2014867) and one for conjugate base (Q33113572) (which I just made). That way the directionality can be incorporated. --99of9 (talk) 10:29, 19 July 2017 (UTC)
- Support. This looks like a useful pair of properties. YULdigitalpreservation (talk) 15:32, 2 August 2017 (UTC)
- @YULdigitalpreservation, 99of9, Walkerma, Kubaello, Egon Willighagen:
Done Created as conjugate acid (P4147) and conjugate base (P4149). ChristianKl (talk) 15:49, 3 August 2017 (UTC)
