(Last updated May 2026)
Figure . The molecular diagram of 5-Fluorocytosine.
| REFCODE | MEBQEQ |
|---|---|
| Formula | C4 H4 N3 O1 F1 |
| Common Name | Fluorocytosine |
| IUPAC Systematic Name | 5-fluorocytosine |
| Other Names | |
| CSD Refcodes | MEBQEQ, MEBQEQ01 |
| Search Identifier | A |
| Scientist | Ashley Hulme |
| Date | 2006 |
| Publication | Hulme, A. T.; Tocher, D. A. Cryst. Growth Des. 6(2), 481-487 (2006) DOI: Open paper (10.1021/cg050398g) |
| Energy model | 1 |
| Study_ID | 0 |
| Programs | MOLPAK, DMAREL (4.1.1) |
| Location on S Drive | \\CHEMISTRY_CPOSS\\0-EarlySearches\\home\\louise_price.eminerals\\fluorocytosine |
| Potential Description | DMA + FIT + Williams F parameters |
| Intramolecular Description | Ab initio MP2 |
Figure . Crystal energy landscape of 5-Fluorocytosine from previous work.
Table . Crystallographic information for CSD entries for 5-Fluorocytosine. Different polymorphs are coloured differently.
| REFCODE | space group | Z’ | a / Å | b / Å | c / Å | α / ° | β / ° | γ / ° | density / g cm-3 | Form |
|---|---|---|---|---|---|---|---|---|---|---|
| MEBQEQ | P21/n | 1.0 | 4.0629 | 9.5211 | 12.7386 | 90.0 | 92.986 | 90.0 | 1.7424 | polymorph II |
| MEBQEQ01 | P41212 | 1.0 | 6.6387 | 6.6387 | 23.471 | 90.0 | 90.0 | 90.0 | 1.6578 | polymorph I |
Table . Experimental information for CSD entries for 5-Fluorocytosine.
| REFCODE | space group | R factor | T / K | Year | Comments |
|---|---|---|---|---|---|
| MEBQEQ | P21/n | 3.41 | at 150 K | 2006 | 10.1021/cg050398g |
| MEBQEQ01 | P41212 | 3.34 | at 150 K | 2006 | 10.1021/cg050398g |
Make this table include whether polymorphs are solution-grown, sublimation grown, templated or otherwise. Add references.