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Structure and properties ... 5.48041129 −3 μm 2: C 2: 1.42382647 −2 μm 2: 1.47994281 −2 μm 2: C 3: 3.25017834 2 μm 2: 4.0289514 2 μm 2: Thermodynamic ...
Left: The dot-and-cross diagram of the LDQ structure of ozone (O 3). The nuclei are as indicated and the electrons are denoted by either dots or crosses, depending on their relative spins. Right: Simplified diagram of the LDQ structure of O 3, showing electrons in non-coincident pairs using thin lines and a coincident electron pair using a ...
[1] [2] [3] Introduced by Gilbert N. Lewis in his 1916 article The Atom and the Molecule, a Lewis structure can be drawn for any covalently bonded molecule, as well as coordination compounds. [4] Lewis structures extend the concept of the electron dot diagram by adding lines between atoms to represent shared pairs in a chemical bond.
The AKF diagram is intended for rocks containing excess aluminium and silica. Its components are: A = Al 2 O 3 - (CaO + Na 2 O + K 2 O) K = K 2 O F = FeO + MgO + MnO. This diagram is less useful, because magnesium does not freely substitute for ferrous iron in many metamorphic minerals important in aluminium-rich rock.
The so-called β-Al 2 O 3 proved to be NaAl 11 O 17. [18] Molten aluminium oxide near the melting temperature is roughly 2/3 tetrahedral (i.e. 2/3 of the Al are surrounded by 4 oxygen neighbors), and 1/3 5-coordinated, with very little (<5%) octahedral Al-O present. [19]
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4 found in the compound Na 5 AlO 4, [2] framework AlO − 2 ions in anhydrous sodium aluminate NaAlO 2 [3] and monocalcium aluminate, CaAl 2 O 4 made up of corner-sharing {AlO 4} tetrahedra. [4] A ring anion, the cyclic Al 6 O 18− 18 anion, found in tricalcium aluminate, Ca 3 Al 2 O 6, which can be considered to consist of 6 corner sharing ...
1st Transition Series Complex colour electron config. structure geometry comments TiCl 4: colourless (t 2g) 0: tetrahedral [Ti 2 Cl 9] −: white/colourless d 0 d 0: face-sharing bioctahedron