The solid-state-chemistry tag has no wiki summary.
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What is the difference between a chemical state and just a combination?
I don't think a combination also can be called a "state" i.e. that the chemical state of vapour or solid would be just a combination. When I read Wikipedia about "chemical state" it refers to just a ...
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Are chiral quasicrystals possible?
Quasicrystals are materials that have long-range atomic order but lack the translational symmetry of conventional crystals. All quasicrystalline tilings and packings I have read about thus far, whilst ...
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Ionic Radius of Iodine in High Temperature Form
The ionic radius of iodine in the high temperature form can be determined once the unit cell is known, but how can I calculate the radius of $\ce{I}$ given that the cubic lattice parameter is 6.10 Å.
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How can you explain that the ratio of the densities of Ag and Au equals the ratio of their relative masses?
My book says that silver and gold both have the same face centered cubic structure and then asks to show and explain why the ratio of their densities equals the ratio of their relative masses. How can ...
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Why does an ideal capacitor give rise to a rectangular cyclic voltammogram (CV)?
This question is sort of a sequel to my previous question about cyclic voltammetry (CV). One of the responses made reference to the fact that an ideal capacitor gives rise to a rectangular cyclic ...
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1answer
816 views
How to find the band gap for a compound?
I have processed a si/polymer hybrid using a silane coupling agent which I need to determine the energy gap / band gap. Would you please let me know the procedure to go about determining the band ...
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1answer
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Has QTPIE ever been applied to 1D metals such as polyacetylene?
QTPIE is a fluctuating charge model that substantially improves modeling of polarization and charge transfer. I was curious whether it has ever been applied to 1D metals such as polyacetylene to ...
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1answer
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Why are there no edge dislocations in a face-centered cubic (FCC) lattice?
In crystallography, we know that the Burgers vector is parallel to the dislocation direction in a screw dislocation, and perpendicular in a edge dislocation.
Furthermore, I have in my lecture notes ...
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How are turbostratic graphite phases formed?
Turbostratic graphite is graphite in which there is quenched rotational disalignment between adjacent graphene sheets, i.e. one sheet is rotated with respect to its neighbor. I suppose this could be ...
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Is there a theory behind selecting elements that may be successful in potential superconductors?
Looking at something like $\cf{ YBa{_2}Cu{_3}O{_7}}$ which was one of the first cuprate superconductors to be discovered, I'm always curious how the selection of these substances as likely ...
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472 views
How does NaCl maintain its crystalline structure?
My understanding is that $\mathrm{NaCl}$ is an ionic compound, in which $\mathrm{Cl}$ becomes (effectively) $\mathrm{Cl^-}$ and $\mathrm{Na}$ becomes $\mathrm{Na^+}$. So I understand why I would get a ...
