Samarium(III) perchlorate is an

inorganic compound In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as '' inorganic chemist ...

with the

chemical formula In chemistry, 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, ...

Sm(ClO₄)₃.

Preparation

Samarium(III) perchlorate can be obtained by the reaction of

perchloric acid Perchloric acid is a mineral acid with the formula H Cl O4. Usually found as an aqueous solution, this colorless compound is a stronger acid than sulfuric acid, nitric acid and hydrochloric acid. It is a powerful oxidizer when hot, but aqueous sol ...

and

samarium(III) oxide Samarium(III) oxide ( Sm2 O3) is a chemical compound. Samarium oxide readily forms on the surface of samarium metal under humid conditions or temperatures in excess of 150°C in dry air. Similar to rust on metallic iron, this oxide layer spalls o ...

. The hydrate precipitated from the solution can be dehydrated with

dichlorine hexoxide Dichlorine hexoxide is the chemical compound with the molecular formula , which is correct for its gaseous state. However, in liquid or solid form, this chlorine oxide ionizes into the dark red ionic compound chloryl perchlorate , which may be tho ...

to obtain the anhydrous form.

Properties

Anhydrous samarium(III) perchlorate forms

hexagonal crystal In crystallography, the hexagonal crystal family is one of the six crystal families, which includes two crystal systems (hexagonal and trigonal) and two lattice systems (hexagonal and rhombohedral). While commonly confused, the trigonal crystal ...

s, space group P63/m, unit cell parameters a=9.259 Å, c=5.746 Å, Z=2. It reacts with ammonium thiocyanate and 1-butyl-3-methylimidazolium thiocyanate (

MIM MIM or Mim may refer to: Places * Mim, Ahafo, Ghana * Mim Lake, Ghana * Mim Bour, or Mim Mountains, Ghana Education * Master of Management, a post-graduate master's degree * Master of Information Management, an interdisciplinary degree progra ...

CN) in absolute

ethanol Ethanol (abbr. EtOH; also called ethyl alcohol, grain alcohol, drinking alcohol, or simply alcohol) is an organic compound. It is an Alcohol (chemistry), alcohol with the chemical formula . Its formula can be also written as or (an ethyl ...

to obtain the ionic liquid

sub>4 m(NCS)₇(H₂O)

References

{{Perchlorates Perchlorates Samarium(III) compounds