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        E         C2 (z)         C2 (y)         C2 (x)         i         ¦Ò (xy)         ¦Ò (xz)         ¦Ò (yz)        
Ag         1         1         1         1         1         1         1         1                 x2, y2, z2
B1g         1         1         -1         -1         1         1         -1         -1         Rz         xy
B2g         1         -1         1         -1         1         -1         1         -1         Ry         xz
B3g         1         -1         -1         1         1         -1         -1         1         Rx         yz
Au         1         1         1         1         -1         -1         -1         -1                
B1u         1         1         -1         -1         -1         -1         1         1         z        
B2u         1         -1         1         -1         -1         1         -1         1         y        
B3u         1         -1         -1         1         -1         1         1         -1         x

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lihb734

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Following Mulliken's  recommendation£¨´ó¸ÅÔÚ1955Äê·¢±í¹ýһƪÎÄÕ£©,  the molecular plane  is  placed  in the YZ plane. The molecule  is  rotated about  the X  axis  so  that the Z  axis  can  pass  through either  the greater number of  atoms, or, if  this is not decisive,  the greater number of  bonds.

[ Last edited by lihb734 on 2011-4-4 at 09:34 ]
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