EMSL Basis Set Library

BASIS="6-31++G**"


!Elements                             References                               
!--------                             ----------                               
! H - He: W.J. Hehre, R. Ditchfield and J.A. Pople, J. Chem. Phys. 56,         
!Li - Ne: 2257 (1972).  Note: Li and B come from J.D. Dill and J.A.            
!         Pople, J. Chem. Phys. 62, 2921 (1975).                               
!Na - Ar: M.M. Francl, W.J. Petro, W.J. Hehre, J.S. Binkley, M.S. Gordon,      
!         D.J. DeFrees and J.A. Pople, J. Chem. Phys. 77, 3654 (1982)          
!K  - Zn: V. Rassolov, J.A. Pople, M. Ratner and T.L. Windus, J. Chem. Phys.   
!         (accepted, 1998)                                                     
!**                                                                            
!         Note: He and Ne are unpublished basis sets taken from the Gaussian   
!         program                                                              
!Elements                             Reference                                
! --------                             ----------                              
!  H, Li-Cl: T. Clark, J. Chandrasekhar, P.V.R. Schleyer, J. Comp. Chem. 4, 294
!             (1983).
!Elements                             References                               
! --------                             ----------                              
!  H,Li - Ne: P.C. Hariharan and J.A. Pople, Theoret. Chimica Acta 28, 213 (197
!3).                                                                           
!    Na - Ar  : M.M. Francl, W.J. Petro, W.J. Hehre, J.S. Binkley, M.S. Gordon,
! D.J.                                                                         
!                 DeFrees and J.A. Pople, J. Chem. Phys. 77, 3654 (1982).      
!       K  - Zn:   V.A. Rassolov, J.A. Pople, M.A. Ratner, and T.L. Windus     
!                   submitted to Journal of Chemical Physics                   
!                    Note: He and Ne are unpublished basis sets taken from Gaus
!sian.
!
HYDROGEN     ! (4s) -> [2s]                                      
 S   3
  1        18.73113700         0.3349460000E-01
  2        2.825393700         0.2347269500    
  3       0.6401217000         0.8137573300    
 S   1
  1       0.1612778000          1.000000000    
HYDROGEN     ! (Diffuse s)                                       
 S   1
  1       0.360000000E-01      1.00000000    
HYDROGEN     ! (1p)                                              
 P   1
  1        1.10000000          1.00000000    
OXYGEN       ! (10s,4p) -> [3s,2p]                               
 S   6
  1        5484.671700         0.1831100000E-02
  2        825.2349500         0.1395010000E-01
  3        188.0469600         0.6844510000E-01
  4        52.96450000         0.2327143000    
  5        16.89757000         0.4701930000    
  6        5.799635300         0.3585209000    
 L   3
  1        15.53961600        -0.1107775000         0.7087430000E-01
  2        3.599933600        -0.1480263000         0.3397528000    
  3        1.013761800          1.130767000         0.7271586000    
 L   1
  1       0.2700058000          1.000000000          1.000000000    
OXYGEN       ! (Diffuse sp)                                      
 L   1
  1       0.845000000E-01      1.00000000          1.00000000    
 D   1
  1       0.800000000          1.00000000    

 

 

Basis Set Library Information on: 6-31++G**                  

                           6-31++G** Split Valence Basis                       
                           -----------------------------                       
Elements      Contraction                       References                     
 H - He: (5s,1p)     -> [3s,1p]    W.J. Hehre, R. Ditchfield and J.A. Pople,   
Li - Ne: (11s,5p)    -> [4s,3p]    J. Chem. Phys. 56, 2257 (1972).             
                                   Note: Li and B come from J.D. Dill and J.A. 
                                         Pople, J. Chem. Phys. 62, 2921 (1975) 
Na - Ar: (17s,11p)   -> [5s,4p]    M.M. Francl, W.J. Petro, W.J. Hehre, J.S.   
                                   Binkley, M.S. Gordon, D.J. DeFrees and J.A. 
                                   Pople, J. Chem. Phys. 77, 3654 (1982)       
                                   Note: He and Ne are unpublished basis sets  
                                         taken from the Gaussian program.      
**                                                                             
Diffuse exponents: T. Clark, J. Chandrasekhar, P.v.R. Schleyer, J. Comp. Chem. 
                   4, 294 (1983).  R. Krishnam, J.S. Binkley, R. Seeger, J.A.  
                   Pople, J. Chem. Phys. 72, 650 (1980). P.M.W. Gill, B.G.     
                   Johnson, J.A. Pople and M.J. Frisch, Chem. Phys. Lett.      
                   197, 499 (1992).                                            
**                                                                             
The 6-31++G** basis set adds a diffuse (s,p) shell to elements Li - Cl and a   
single diffuse s to hydrogen.                                                  
The 6-31G basis set uses 6 Gaussians to expand the 1s core of second period    
elements.