Carbon Chemistry & Nanoscience Notes

Just some notes Carbon Chemistry & Nanoscience. FOR AS CHEMISTRY (ANY BOARDS)

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  • Created on: 11-04-12 18:40
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Carbon Chemistry & Nanoscience
Graphite: It is a black or grey, lustrous substance that easily crumbles or flakes. It is chemically inert
less than diamond, and is a conductor of both heat and electricity and a solid at room temperature.
Graphite can be produced artificially from amorphous carbon.
Graphite is composed of planes of trigonal carbon atoms joined in a honeycomb pattern. Each carbon
atom is bonded to 3 others at 120 bond angle. Pencils use graphite because it offers low friction, this
is because the substance is able to slide over one another
Diamond: Pure diamond is composed entirely of interlocking tetrahedral carbon atoms, each of
which is covalently bonded to its four nearest neighbours. Therefore it is a tetrahedral structure with
109.5 Bond angles. This can be represented by a diagram like the one below:
The giant covalent structure of diamond has strong covalent bonds between all of the carbon atoms.
Diamonds, due to their brilliance, luster and durability, have long held the top of the jewelry market,
and due to diamond's hardness, stability and thermal conductivity, the gems have found a place in
the world of technology. This can be used in saws and other hard-edged cutting tools, in machining
Vinoth

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Carbon Chemistry & Nanoscience
other tools such as those used in the automotive industry, and in the medical field of lasers, diamonds
are hardworking gems.
Fullerenes : The further allotropes of carbons, which was mentioned by different scientists, were
nicknamed the `buckyball' and was then formally named buckminsterfullerene.These groups of
spherical carbon molecules are known as the Fullerenes.
Buckminsterfullerene is a black solid that dissolves in petrol to form a deep red solution.…read more

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Carbon Chemistry & Nanoscience
Vinoth…read more

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