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104AA Sp09 lecture 12

104AA Sp09 lecture 12 - MX(s Constant M U o(kJ/mol H...

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The Solid State Reading: Miessler and Tarr, Chapter 7
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X-ray Diffractometer
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The Seven Crystal Systems
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The 14 Bravais Lattices
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Devil’s Golf Course - Death Valley
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CsCl Structure
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Zinc Blende (ZnS) Structure saphalerite diamond zinc blende
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Wurtzite (ZnS) Structure
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Fluorite (CaF 2 ) Structure
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Rutile (TiO 2 ) Structure
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Perovskite (CaTiO 3 ) Structure
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Superconductor Structure (YBa 2 Cu 3 O 7-x )
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Superconductor Structure (YBa 2 Cu 3 O 7-x ) -Polyhedral Representation
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Trends in Lattice Energies and Heats of Formation H f : M(s) + 1/2 X 2 (g, l, or s) ---> MX(s) U o : M + (g) + X - (g) --->
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Unformatted text preview: MX(s) Constant M: U o (kJ/mol) H f (kJ/mol) LiF -1033 -610 LiCl -845 -402 LiBr -798 -350 LiI -740 -270 Constant X: U o (kJ/mol) H f (kJ/mol) LiF -1033 -610 NaF -915 -574 KF -813 -563 RbF -778 -551 CsF -748 -545 U o (kJ/mol) H f (kJ/mol) LiI -740 -270 NaI -692 -288 KI -640 -328 RbI -622 -330 CsI -601 -350 IE's decrease descending a column H atom 's decrease descending a column cation/anion size match: stronger attractions cation/anion size mismatch: weaker attractions NaCl Electron Contour Diagram...
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