Search results
Results from the WOW.Com Content Network
Manganese(VII) oxide (manganese heptoxide) is an inorganic compound with the formula Mn 2 O 7 Manganese heptoxide is a volatile liquid with an oily consistency. It is a highly reactive and powerful oxidizer that reacts explosively with nearly any organic compound.
It may refer more specifically to the following manganese minerals: Birnessite, (Na,Ca) 0.5 (Mn IV,Mn III) 2 O 4 · 1.5 H 2 O; Buserite, MnO 2 ·nH 2 O; Hausmannite, Mn II Mn III 2 O 4; Manganite, Mn III O(OH)
The structure is distorted due to the Jahn–Teller effect. [3] At room temperature Mn 3 O 4 is paramagnetic , below 41-43 K, it is ferrimagnetic [ 12 ] although this has been reported as reducing in nanocrystalline samples to around 39 K. [ 13 ]
Main page; Contents; Current events; Random article; About Wikipedia; Contact us
α-Mn 2 O 3 has the cubic bixbyite structure, which is an example of a C-type rare earth sesquioxide (Pearson symbol cI80, space group Ia 3, #206). The bixbyite structure has been found to be stabilised by the presence of small amounts of Fe 3+ , pure Mn 2 O 3 has an orthorhombic structure ( Pearson symbol oP24, space group Pbca, #61).
Discover the best free online games at AOL.com - Play board, card, casino, puzzle and many more online games while chatting with others in real-time.
MnO has the distinction of being one of the first compounds [4] to have its magnetic structure determined by neutron diffraction, the report appearing in 1951. [5] This study showed that the Mn 2+ ions form a face centered cubic magnetic sub-lattice where there are ferromagnetically coupled sheets that are anti-parallel with adjacent sheets.
In crystallography, a Strukturbericht designation or Strukturbericht type is a system of detailed crystal structure classification by analogy to another known structure. The designations were intended to be comprehensive but are mainly used as supplement to space group crystal structures designations, especially historically.