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The giant covalent structures of diamond, graphite and silicon dioxide and how they affect their physical properties ... The structure of graphite...
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www.chemguide.co.uk/atoms/structures/giantcov.html
www.chemguide.co.uk/atoms/structures/giantcov.html
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The ideal structure of graphite consists of layers composed of hexagonally arranged carbon atoms, bound together by weak van der Waals interactions. The carbon atoms are covalently bound to three neighboring carbon atoms, through sp2-sp2 axial hybrid orbital overlap.
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www.nanoscienceworks.org/specials/structure-and-symmetr...
www.nanoscienceworks.org/specials/structure-and-symmetry-of-graphite
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This is a revised version of the original graphite structure phase. We have preserved the old graphite structure page here. ... We will assign the A9 Strukturbericht Designation to the unbuckled structure, leaving a separate page for the Buckled (P63mc) graphite structure.
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cst-www.nrl.navy.mil/lattice/struk/a9.html
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Three out of four valence electrons of each carbon atom are used in bond formation with three other carbon atoms while the fourth electron is free to move in the structure of graphite.
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www.citycollegiate.com/allotropyXIIb.htm
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All of the differences between graphite and diamond are the result of the difference in their respective structures. Graphite has a sheet like structure where the atoms all lie in a plane and are only weakly bonded to the graphite sheets above and below.
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www.galleries.com/minerals/elements/graphite/graphite.h...
www.galleries.com/minerals/elements/graphite/graphite.htm
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Compare the structure of diamond and graphite, both composed of just carbon. In diamond we have the hardest known material, in graphite we have one of the softest, simply by rearranging the way the atoms are bonded together.
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www.bris.ac.uk/Depts/Chemistry/MOTM/diamond/diamond.htm
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In the graphite structure, overlap occur between the 2( ) orbitals of neighboring atoms in the same plane. For such neighbors a side-to-side overlap also occur between their unhybridized orbitals. A side-to-side bonding known as -bonding results between these neighbors.
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phycomp.technion.ac.il/~anastasy/teza/teza/node4.html
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Graphite and Diamond Crystal Structures ... Back to the Graphite Page ... ; Hexagonal Graphite (2H)
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www.phy.mtu.edu/faculty/info/jaszczak/structure.html
www.phy.mtu.edu/faculty/info/jaszczak/structure.html
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The atomic structure of graphite has been determined by x-ray diffraction and other analytical techniques and is shown in Figure 3.18. Parallel sheets of hexagonal rings are spaced 3.35 apart. Bonds within the chickenwire-like sheets are very strong, but interactions between the sheets are weaker and can be broken easily.
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www.chem.wisc.edu/~newtrad/CurrRef/BDGTopic/BDGtext/BDG...
www.chem.wisc.edu/~newtrad/CurrRef/BDGTopic/BDGtext/BDGGraph.html
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