[Cod-bugs] Posible error.

[Rodrigo Garcia]

Dear Saulius,

Thank you very much for your quick and complete answer.
And thanks a lot for maintaining such a helpful public service as COD.

Best regards,

Rodrigo

El mar, 15 oct 2024 a las 13:15, Saulius Gražulis (<grazulis at ibt.lt>)
escribió:

> Dear Rodrigo,
>
> On 2024-10-15 14:01, Rodrigo Garcia wrote:
>
> Excuse my ignorance, but is the common name for this phase correct?:
>
> https://www.crystallography.net/cod/7202572.html
>
>
> I thought apatite corresponds to several calcium phosphates, not to the
> one covered by entry 7202572.
>
> I also though that 'apatite' refers to phosphates, not silicates.
>
> The paper, however, claims in the title: "Oxide ion conduction in Ba, Ca
> and Sr doped apatite-type lanthanum silicates", i.e. these are silicates
> that apparently have an apatite-like structure (although I am also not an
> expert in the field). Also, in the source CIFs that are provided as
> supplementary materials and which were the source of the COD data, another
> structure from this paper is called "_chemical_name_common  'Ba doped
> apatite'".
>
> Apparently the authors think that it is appropriate to call their
> investigated materials 'apatite'.
>
> In this case, COD leaves the authors' opinion in the entry. Also, we do
> not regularise '_chemical_name_common' and will probably never do that,
> since this is, eh, a common name which can be different in different
> communities.
>
> In the searches it is better to rely on formula (especially the calculated
> one), systematic names (these might be regularised in the future) and
> crystallographic parameters.
>
> I hope that clarifies the situation and serves you data search needs...
>
> Regards,
> Saulius
>
> --
> Dr. Saulius Gražulis
> Vilnius University Institute of Biotechnology, Saulėtekio al. 7
> LT-10257 Vilnius, Lietuva (Lithuania)
> mobile: (+370-684)-49802, (+370-614)-36366
>
>
> --
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