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Topic: Layered Dichalcogenides (TiS2, NbS2, MoS2, etc.)  (Read 5237 times)

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Offline vinnyslick

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Layered Dichalcogenides (TiS2, NbS2, MoS2, etc.)
« on: February 26, 2009, 03:17:53 PM »
I have two questions about layered dichalcogenides.

1. Does anyone have an idea of how ionic the bonds are in the sulfides?  I have read that the oxides are more ionic than the sulfides, but are the sulfides still considerably more ionic than graphite?

2. Has anyone heard of dichalcogenides with turbostatic (disordered) stacking?  This is known in graphite, someone told me it has happened in layered dichalcogenides also, but I haven't been able to find anything about it.

Any references would be great.  Thanks for any help,
Vinny

Offline Fleaker

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Re: Layered Dichalcogenides (TiS2, NbS2, MoS2, etc.)
« Reply #1 on: February 26, 2009, 10:01:27 PM »
I suggest you look at the literature. There are numerous books that treat on this.


You might want to investigate Cotton and Wilkinson.
Neither flask nor beaker.

Offline vinnyslick

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Re: Layered Dichalcogenides (TiS2, NbS2, MoS2, etc.)
« Reply #2 on: February 28, 2009, 11:09:28 AM »
I got advanced inorganic chemistry by cotton and wilkinson.  Is this the book you are referring to?
There is a few paragraphs on MoS2 and TiS2, but nothing about ionicity or turbostatic stacking of these materials. 
I have read extensive literature on these materials, mainly journals as opposed to books, because it is part of my thesis.  Have you actually seen something about the two issues I mentioned?
Thanks,
Vinny

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