Californium(III) bromide is an
inorganic compound
An inorganic compound is typically a chemical compound that lacks carbon–hydrogen bondsthat is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as ''inorganic chemistry''.
Inorgan ...
, a salt with a
chemical formula
A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as pare ...
CfBr
3. Like in
californium(III) oxide
Californium(III) oxide is a binary inorganic compound of californium and oxygen
Oxygen is a chemical element; it has chemical symbol, symbol O and atomic number 8. It is a member of the chalcogen group (periodic table), group in the pe ...
(Cf
2O
3) and other californium halides, including californium(III) fluoride (CfF
3),
californium(III) chloride, and californium(III) iodide (CfI
3), the californium
atom
Atoms are the basic particles of the chemical elements. An atom consists of a atomic nucleus, nucleus of protons and generally neutrons, surrounded by an electromagnetically bound swarm of electrons. The chemical elements are distinguished fr ...
has an
oxidation state
In chemistry, the oxidation state, or oxidation number, is the hypothetical Electrical charge, charge of an atom if all of its Chemical bond, bonds to other atoms are fully Ionic bond, ionic. It describes the degree of oxidation (loss of electrons ...
of +3.
Properties
Californium(III) bromide is shown to crystallize in both the
AlCl3 and
FeCl3 type structures. In the former structure, the californium ion is six coordinated and the three independent Cf-Br bond lengths are 279.5±0.9 pm, 282.7±1.1 pm, and 282.8±0.8 pm.
Californium(III) bromide partially decomposes into californium(II) bromide under high temperature.
:
2 CfBr3 ->Delta T
Delta commonly refers to:
* Delta (letter) (Δ or δ), the fourth letter of the Greek alphabet
* D (NATO phonetic alphabet: "Delta"), the fourth letter in the Latin alphabet
* River delta, at a river mouth
* Delta Air Lines, a major US carrier
...
2 CfBr2 + Br2
In the radioactive decay of
berkelium
Berkelium is a synthetic chemical element; it has symbol Bk and atomic number 97. It is a member of the actinide and transuranium element series. It is named after the city of Berkeley, California, the location of the Lawrence Berkeley National ...
-249 to californium-249, the oxidation number and crystal structure are preserved. The six-coordinate berkelium(III) bromide (AlCl
3-type monoclinic structure) decays to produce a six-coordinate californium(III) bromide, whereas an eight-coordinate berkelium(III) bromide (
PuBr3-type, orthorhombic structure) produces an eight-coordinate californium(III) bromide.
See also
*
Californium
Californium is a synthetic chemical element; it has symbol Cf and atomic number 98. It was first synthesized in 1950 at Lawrence Berkeley National Laboratory (then the University of California Radiation Laboratory) by bombarding curium with al ...
*
Californium compounds
Californium is a synthetic element, synthetic chemical element; it has Chemical symbol, symbol Cf and atomic number 98. It was first synthesized in 1950 at Lawrence Berkeley National Laboratory (then the University of California Radiation Labora ...
References
{{Actinide halides
Californium compounds
Actinide halides