Californium(III) iodide

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| ImageFile = Kristallstruktur Bismut(III)-iodid.png

| ImageCaption =

| IUPACName =

| OtherNames = Californium triiodide{{cite web |title=WebElements Periodic Table » Californium » californium triiodide |url=https://webelements.com/compounds/californium/californium_triiodide.html |publisher=webelements.com |access-date=11 April 2023}}

| Section1 = {{Chembox Identifiers

| CASNo = 20758-81-0

| PubChem =

| ChemSpiderID =

| EINECS =

| DTXSID =

| SMILES = [Cf+3].[I-].[I-].[I-]

| StdInChI = 1S/Cf.3HI/h;3*1H/q+3;;;/p-3

| StdInChIKey = SJKPTAUDVXCUTB-UHFFFAOYSA-K

}}

| Section2 = {{Chembox Properties

| Cf=1|I=3

| Appearance = red-orange solid

| Density = g/cm3

| Solubility = insoluble

| MeltingPtC =

| BoilingPtC = 800

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| Section4 = {{Chembox Structure

| CrystalStruct = trigonal

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| Section7 = {{Chembox Hazards

| MainHazards =

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|Section6={{Chembox Related

| OtherCompounds = Einsteinium(III) iodide

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Californium(III) iodide is a binary inorganic compound of californium and iodine with the formula {{chem|Cf|I|3}}.{{cite book |last1=Macintyre |first1=Jane E. |title=Dictionary of Inorganic Compounds |date=23 July 1992 |publisher=CRC Press |isbn=978-0-412-30120-9 |page=2826 |url=https://books.google.com/books?id=9eJvoNCSCRMC&dq=Californium+diiodide&pg=PA2826 |access-date=11 April 2023 |language=en}}{{cite book |title=ERDA Energy Research Abstracts |date=1977 |publisher=ERDA Technical Information Center, etc.; Washington |page=565 |url=https://books.google.com/books?id=mZNi2Dp7Fp0C&dq=Californium+triiodide&pg=PA565 |access-date=11 April 2023 |language=en}}

Synthesis

Californium triiodide can be prepared in microgram quantities under high vacuum. It can be prepared at 500 °C from californium(III) hydroxide and hydrogen iodide:

::{{chem2|Cf(OH)3 + 3HI -> CfI3 + 3H2O}}

Physical properties

The compound forms a red-orange solid. The triiodide sublimes at ~800 °C without melting. It crystallizes in the trigonal crystal structure in the space group R3 (No. 148) with the lattice parameters a = 758.7 pm and c = 2081.4 pm with six formula units per unit cell. Its crystal structure is isotypic with that of bismuth(III) iodide.

References

{{reflist}}

{{Californium compounds}}

{{Iodides}}

{{Actinide halides}}

Category:Californium compounds

Category:Iodides

Category:Actinide halides

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