| 
            Symmetry point group | 
        D2h | 
      
      
        | 
          
            Symmetry elements
          
         | 
        E     C2(z)     C2(y)
              C2(x)     i    
          &sigmah(xy)     &sigmah(xz)
              &sigmah(yz)
         | 
      
      
        | Irriducible representation &Gamma3N
	 | 
	
	  22 Ag + 22 B1g + 9 B2g + 13 B3g + 9 Au + 13 B1u + 22 B2u + 22 B3u
	 | 
      
      
        | Irriducible representation &Gammavib
	 | 
        
	  22 Ag + 21 B1g + 8 B2g + 12 B3g + 9 Au + 12 B1u + 21 B2u + 21 B3u
	 | 
      
      
        | Infrared active modes | 
	
	  12 B1u + 21 B2u + 21 B3u | 
      
      
        | Single ionization energy (eV) | 
        
          
         | 
      
      
        | Double ionization energy (eV) | 
        
          
            
              | Singlet: | 
              Adiab. = 15.55 | 
              Vert. = 15.70 | 
              (Exp. ) | 
             
            
              | Triplet: | 
              Adiab. = 16.20 | 
              Vert. = 16.36 | 
             
           
         | 
      
      
        | Electron affinity (eV) | 
        
          
            
              | Adiab. = 1.54 | 
              Vert.  = 1.48 | 
              (Exp. ) | 
             
	   
         | 
      
      
        | Zero Point Energies (kcal/mol) | 
        
          
            
              | Anion = 213 | 
              Neutral = 215 | 
              Cation = 216 | 
              Dication S = 217 | 
             
            | 
      
      
        | Static dipole polarizabilities (Å3) | 
        
          
            
              | Anion: | 
              &alphaxx = 124 | 
              &alphayy = 74 | 
              &alphazz = 25 | 
             
            
              | Neutral: | 
              &alphaxx = 117 | 
              &alphayy = 63 | 
              &alphazz = 23 | 
             
            
              | Cation: | 
              &alphaxx = 112 | 
              &alphayy = 69 | 
              &alphazz = 22 | 
             
            
              | Dication S: | 
              &alphaxx = 99 | 
              &alphayy = 71 | 
              &alphazz = 20 | 
             
           
         | 
      
      
        | 
          Rotational constants(cm-1)
         | 
        
          
            
              | Anion: | 
              A = 1.047e-02 | 
              B = 4.642e-03 | 
              C = 3.216e-03 | 
             
	    
              | Neutral: | 
              A = 1.042e-02 | 
              B = 4.690e-03 | 
              C = 3.234e-03 | 
             
            
              | Cation: | 
              A = 1.045e-02 | 
              B = 4.691e-03 | 
              C = 3.238e-03 | 
             
            
              | Dication S: | 
              A = 1.047e-02 | 
              B = 4.688e-03 | 
              C = 3.237e-03 | 
             
            
              | Dication T: | 
              A = 1.052e-02 | 
              B = 4.656e-03 | 
              C = 3.228e-03 | 
             
           
         | 
      
            
        | 
          van der Waals coefficients (a.u.)#
         | 
        
        
	    
	      | Average static polarizability | 
	      &alpha(0) = 459 | 
           
          
            | Effective frequency | 
            &omega1 = 0.293 | 
           
          
            | Homomolecular Hamaker constant (x10-3) | 
            C6 = 46.3 | 
           
          
            | Coefficient of the retardated vdW interaction (x10-6) | 
            KAA = 8.40 | 
           
         
         |