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Gallium Nitride (GaN) Covalent Bond! Atomic hybrid orbitals: sp3

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Presentation on theme: "Gallium Nitride (GaN) Covalent Bond! Atomic hybrid orbitals: sp3"— Presentation transcript:

1 Gallium Nitride (GaN) Covalent Bond! Atomic hybrid orbitals: sp3
Apr 20’04 Joel Vaughn, Kendal Clark, Timur Skeini Gallium Nitride (GaN) Covalent Bond! Bond Length (Å) Wurtzite Polytype Zinc-blende ~ ~1.9 Atomic hybrid orbitals: sp3 sp3 Hybrids. The top four images show the four sp3 hybrids. These particular sp3 hybrids are combinations of 2s and three 2p functions. The bottom shows the relative positions of these four hybrids superimposed. Note that in each case, the nucleus is embedded in the minor lobe.

2 Gallium (Ga) Nitrogen (N) [Ar] 3d10 4s2 4p1 [He] 2s2 2p3
Gallium (Ga) Nitrogen (N) Electron Configuration [Ar] 3d10 4s2 4p1 [He] 2s2 2p3 Stable Electron [Ar] 3d10 4s2 4p6 [He] 2s2 2p6 Valence shell orbital radii (pm) s 105.8 53.9 p 140.0 52.3 d 28.5 -- Ionization Energy (Enthalpy) (kJ/mol) 1st 578.8 1402.3 2nd 1979.3 2856 Electron Affinity 28.9 7

3 Gallium Nitride (GaN) Wurtzite polytype: a=3.189 c=5.185
Zinc-blende structure: a=4.52 Crystal Viewer (Java Applet Service): GaN: GaAs:

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