Identifiers | |
---|---|
3D model (
JSmol)
|
|
| |
| |
Properties | |
Rb4O6 | |
Molar mass | 437.865 g·mol−1 |
Appearance | Black crystals [1] |
Melting point | 461 °C (862 °F; 734 K) [2] |
Structure [3] | |
Pu2C3 structure type ( body-centered cubic) | |
I43d (No. 220) | |
a = 932 pm
| |
Formula units (Z)
|
4 |
Related compounds | |
Other
cations
|
Caesium sesquioxide |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Rubidium sesquioxide is a chemical compound with the formula Rb2O3 or more accurately Rb4 O6. In terms of oxidation states, Rubidium in this compound has a nominal charge of +1, and the oxygen is a mixed peroxide (O2−2) and superoxide (O−2) for a structural formula of (Rb+)4(O−2)2(O2−2). [4] It has been studied theoretically as an example of a strongly correlated material. [5]
The compound was predicted to be a rare example of a ferromagnetic compound that is magnetic due to a p-block element, [6] and a half-metal that was conducting in the minority spin band. [7] However, while the material does have exotic magnetic behavior, experimental results instead showed an electrically insulating magnetically frustrated system. [1] [5] Rb4O6 also displays a Verwey transition where charge ordering appears at 290 K. [8]
Rubidium sesquioxide can be prepared by reacting the peroxide Rb2O2 and the superoxide RbO2: [2]
It is initially discovered in 1907, [9] [3] and more thoroughly characterized in 1939. [10] The compound crystallizes in a body-centered cubic form with the same crystal structure as Pu2C3 and Cs4O6. [10] [3]
Identifiers | |
---|---|
3D model (
JSmol)
|
|
| |
| |
Properties | |
Rb4O6 | |
Molar mass | 437.865 g·mol−1 |
Appearance | Black crystals [1] |
Melting point | 461 °C (862 °F; 734 K) [2] |
Structure [3] | |
Pu2C3 structure type ( body-centered cubic) | |
I43d (No. 220) | |
a = 932 pm
| |
Formula units (Z)
|
4 |
Related compounds | |
Other
cations
|
Caesium sesquioxide |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Rubidium sesquioxide is a chemical compound with the formula Rb2O3 or more accurately Rb4 O6. In terms of oxidation states, Rubidium in this compound has a nominal charge of +1, and the oxygen is a mixed peroxide (O2−2) and superoxide (O−2) for a structural formula of (Rb+)4(O−2)2(O2−2). [4] It has been studied theoretically as an example of a strongly correlated material. [5]
The compound was predicted to be a rare example of a ferromagnetic compound that is magnetic due to a p-block element, [6] and a half-metal that was conducting in the minority spin band. [7] However, while the material does have exotic magnetic behavior, experimental results instead showed an electrically insulating magnetically frustrated system. [1] [5] Rb4O6 also displays a Verwey transition where charge ordering appears at 290 K. [8]
Rubidium sesquioxide can be prepared by reacting the peroxide Rb2O2 and the superoxide RbO2: [2]
It is initially discovered in 1907, [9] [3] and more thoroughly characterized in 1939. [10] The compound crystallizes in a body-centered cubic form with the same crystal structure as Pu2C3 and Cs4O6. [10] [3]