Americium (IV) fluoride

Crystal structure
	__ On 4+ __ F -
Crystal system	monoclinic
Space group	C 2 / c (No. 15)
Lattice parameters	a = 1249 pm ; b = 1047 pm ; c = 820 pm ; β = 126.1 °
General
Surname	Americium (IV) fluoride
other names	Americium tetrafluoride
Ratio formula	AmF 4
Brief description	pale pink solid
External identifiers / databases
PubChem	20504111
Wikidata	Q467666
properties
Molar mass	319.06 g mol −1
Physical state	firmly
density	7.23 g cm −3
Hazard and safety information
	; Radioactive
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Americium (IV) fluoride is a fluoride of the artificial element and actinoid americium with the empirical formula AmF ₄ . Americium occurs in this salt in the +4 oxidation state.

presentation

The synthesis of americium (IV) fluoride takes place via the oxidative fluorination of americium (III) fluoride .

{\ displaystyle {\ ce {2 AmF3 + F2 -> 2 AmF4}}}

properties

Americium (IV) fluoride is a pale pink ionic compound consisting of Am ⁴⁺ and F ^- ions. It crystallizes in the monoclinic crystal system in the space group C 2 / c (space group no. 15) with the lattice parameters a = 1249 pm , b = 1047 pm, c = 820 pm and β = 126.1 °, as well as twelve formula units per unit cell . Its crystal structure is isotype with uranium (IV) fluoride . Template: room group / 15

safety instructions

Classifications according to the CLP regulation are not available because they only include chemical hazard and play a completely subordinate role compared to the hazards based on radioactivity . The latter also only applies if the amount of substance involved is relevant.

Individual evidence

^ Wolfgang H. Runde, Wallace W. Schulz: Americium , in: Lester R. Morss, Norman M. Edelstein, Jean Fuger (eds.): The Chemistry of the Actinide and Transactinide Elements , Springer, Dordrecht 2006; ISBN 1-4020-3555-1 , pp. 1265-1395 ( doi : 10.1007 / 1-4020-3598-5_8 ).
↑ Americium (IV) fluoride at www.webelements.com .
↑ The hazards emanating from radioactivity do not belong to the properties to be classified according to the GHS labeling. With regard to other hazards, this substance has either not yet been classified or a reliable and citable source has not yet been found.
↑ LB Asprey: New Compounds of Quadrivalent Americium, AmF ₄ , KAmF ₅ , in: J. Am. Chem. Soc. , 1954 , 76 (7), pp. 2019-2020 ( doi: 10.1021 / ja01636a094 ).
^ LB Asprey, RA Penneman: First Observation of Aqueous Tetravalent Americium , in: J. Am. Chem. Soc. , 1961 , 83 (9), pp. 2200-2200 ( doi: 10.1021 / ja01470a040 ).
^ LB Asprey, RA Penneman: Preparation and Properties of Aqueous Tetravalent Americium , in: Inorg. Chem. , 1962 , 1 (1), pp. 134-136 ( doi: 10.1021 / ic50001a025 ).
^ FH Kruse, LB Asprey: A Crystalline Fluoride Complex of Tetravalent Americium , in: Inorg. Chem. , 1962 , 1 (1), pp. 137-139 ( doi: 10.1021 / ic50001a026 ).
^ LB Asprey, RG Haire: On the Actinide Tetrafluoride Lattice Parameters , in: Inorg. Nucl. Chem. Lett. , 1973 , 9 , pp. 1121-1128 ( doi: 10.1016 / 0020-1650 (73) 80017-0 ).

literature

Wolfgang H. Runde, Wallace W. Schulz: Americium , in: Lester R. Morss, Norman M. Edelstein, Jean Fuger (Eds.): The Chemistry of the Actinide and Transactinide Elements , Springer, Dordrecht 2006; ISBN 1-4020-3555-1 , pp. 1265-1395 ( doi : 10.1007 / 1-4020-3598-5_8 ).

[Morss-1] Wolfgang H. Runde, Wallace W. Schulz: Americium , in: Lester R. Morss, Norman M. Edelstein, Jean Fuger (eds.): The Chemistry of the Actinide and Transactinide Elements , Springer, Dordrecht 2006; ISBN 1-4020-3555-1 , pp. 1265-1395 ( doi : 10.1007 / 1-4020-3598-5_8 ).

[webelements-2] Americium (IV) fluoride at www.webelements.com .

[NV-3] The hazards emanating from radioactivity do not belong to the properties to be classified according to the GHS labeling. With regard to other hazards, this substance has either not yet been classified or a reliable and citable source has not yet been found.

[4] LB Asprey: New Compounds of Quadrivalent Americium, AmF ₄ , KAmF ₅ , in: J. Am. Chem. Soc. , 1954 , 76 (7), pp. 2019-2020 ( doi: 10.1021 / ja01636a094 ).

[5] LB Asprey, RA Penneman: First Observation of Aqueous Tetravalent Americium , in: J. Am. Chem. Soc. , 1961 , 83 (9), pp. 2200-2200 ( doi: 10.1021 / ja01470a040 ).

[6] LB Asprey, RA Penneman: Preparation and Properties of Aqueous Tetravalent Americium , in: Inorg. Chem. , 1962 , 1 (1), pp. 134-136 ( doi: 10.1021 / ic50001a025 ).

[7] FH Kruse, LB Asprey: A Crystalline Fluoride Complex of Tetravalent Americium , in: Inorg. Chem. , 1962 , 1 (1), pp. 137-139 ( doi: 10.1021 / ic50001a026 ).

[8] LB Asprey, RG Haire: On the Actinide Tetrafluoride Lattice Parameters , in: Inorg. Nucl. Chem. Lett. , 1973 , 9 , pp. 1121-1128 ( doi: 10.1016 / 0020-1650 (73) 80017-0 ).