(Last updated March 2026)
Figure . The molecular diagram of Hydantoin.
| REFCODE | PAHYON |
|---|---|
| Formula | C3 H4 N2 O2 |
| Common Name | Hydantoin |
| IUPAC Systematic Name | Imidazolidine-2,4-dione |
| Other Names | Blind Test 8 |
| CSD Refcodes | PAHYON01 |
| Search Identifier | A |
| Scientist | Tom Lewis |
| Date | 2005 |
| Publication | Day GM et al, Acta Cryst. B 2005, 61 (5), 511-527 DOI: Open paper (10.1107/S0108768105016563) |
| Energy model | 1 |
| Study_ID | 0 |
| Programs | Molpak, DMAREL (3.0) |
| Location on S Drive | \\CHEMISTRY_CPOSS\\0-EarlySearches\\home\\louise_price.eminerals\\hydantoin |
| Potential Description | DMA + FIT |
| Intramolecular Description | Ab initio MP2 |
Figure . Crystal energy landscape of Hydantoin from previous work.
Table . Crystallographic information for CSD entries for Hydantoin. Different polymorphs are coloured differently.
| REFCODE | space group | Z’ | a / Å | b / Å | c / Å | α / ° | β / ° | γ / ° | density / g cm-3 | Form |
|---|---|---|---|---|---|---|---|---|---|---|
| PAHYON | C2/c | 1.0 | 9.3538 | 12.1757 | 7.2286 | 90.0 | 104.593 | 90.0 | 1.6686 | None |
| PAHYON01 | C2/c | 1.0 | 9.3538 | 12.1757 | 7.2286 | 90.0 | 104.593 | 90.0 | 1.6686 | None |
| PAHYON02 | C2/c | 1.0 | 9.39900 | 12.242 | 7.375 | 90.0 | 105.205 | 90.0 | 1.6234 | None |
| PAHYON04 | C2/c | 1.0 | 9.3446 | 12.244 | 7.34580 | 90.0 | 105.194 | 90.0 | 1.6390 | None |
Table . Experimental information for CSD entries for Hydantoin.
| REFCODE | space group | R factor | T / K | Year | Comments |
|---|---|---|---|---|---|
| PAHYON | C2/c | 6.11 | at 190 K | 2004 | 10.1107/S0108270104017706 |
| PAHYON01 | C2/c | 6.11 | at 190 K | 2005 | 10.1107/S0108768105016563 |
| PAHYON02 | C2/c | 12.01 | 299.1 K | 2019 | None |
| PAHYON04 | C2/c | 5.46 | 293 K | 2020 | 10.1039/D0MH00688B |
Make this table include whether polymorphs are solution-grown, sublimation grown, templated or otherwise. Add references.