National Institute of Standards and Technology
Computational Chemistry Comparison and Benchmark DataBase
Release 17bSeptember 2015
NIST Standard Reference Database 101
IIntroduction
IIExperimental data
IIICalculated data
IVData comparisons
VCost comparisons
VIInput and output files
VIITutorials and Units
VIIILinks to other sites
IXFeedback
XOlder CCCBDB versions
XIIGeometries
XIII Vibrations
XIVReaction data
XVEntropy data
XVIBibliographic data
XVIIIon data
XVIIIBad calculations
XIXIndex of properties
XXH-bond dimers
XXIOddities

NIST policy on privacy, security, and accessibility.

Please rate our products
© 2013 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved.

The National Institute of Standards and Technology (NIST) is an agency of the U.S. Department of Commerce.

Please send questions, comments, corrections, additions and suggestions to cccbdb@nist.gov.

return to home page

III.F.2.

Completed calculations for NH3NH3 (Ammonia Dimer)

Methods and basis sets for which an energy has been calculated. "e" indicates just an energy has been calculated. "o" indicates an optimized geometry. "v" indicates vibrational frequencies. "s" followed by a number indicates completed calculations for different states (for example s1ov). "c" followed by a number indicates completed calculations for different conformations (for example c2ov).
See the Calculated Energies page (section III.A.1) for more calculated properties.
Methods with predefined basis sets
semi-empirical AM1 c1o c2o
PM3 c1ov c2o
composite G1 c1e c2e
G2MP2 c1e c2e
G2 c1e c2e
G3 c1e c2e
G3B3 c1e c2e
G3MP2 c1e
G4 c1e c2e
CBS-Q c1e c2e

Methods with standard basis sets
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) 6-311+G(3df,2p) 6-311+G(3df,2pd) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ cc-pV(T+d)Z
hartree fock HF c1o c2o c1ov c2ov c1ov c2ov c1ov c2o c1ov c2o c1ov c2ov c1o c2ov c1ov c2ov c1ov c2ov c1ov c2ov   c1ov c1o c2ov c1ov c2ov c1ov c2ov c1o c2ov c1o c2ov c1o c2ov c1o c2ov  
density functional LSDA c1o c2o c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1o c2o c1ov c2ov c1ov c2ov c1ov c2ov     c1ov c2ov c1ov c2ov c1ov c2ov   c1o c2ov c1o c2ov   c1ov
SVWN   c1ov c2ov     c1ov c2ov c1ov c2ov c1o c2o c1ov c2ov c1ov c2ov c1ov c2ov     c1ov c2ov c1ov c2ov c1ov c2ov   c1o c2ov c1o c2ov    
BLYP c1o c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2o c1o c2o c1ov c2ov c1ov c2ov c1ov c2ov     c1o c2o c1ov c2ov c1ov c2ov          
B1B95 c1o c2o c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2o c1ov c2o c1ov c2ov c1ov c2ov c1ov c2o c1ov c2ov     c1ov c2ov c1ov c2o c1ov c2ov   c1ov c2ov c1o c2ov   c1ov
B3LYP c1o c2o c1ov c2o c1ov c2o c1ov c2ov c1ov c2ov c1ov c2o c1o c2o c1ov c2ov c1ov c2o c1ov c2ov   c1ov c1o c2o c1ov c2ov c1ov c2ov c1o c2ov c1o c2ov c1o c2ov c1o c2ov  
B3LYPultrafine   c1ov     c1ov c2ov   c1ov         c1ov c1o c2ov c1ov c2ov c1ov c2ov   c1o c2ov c1o c2ov    
B3PW91 c1o c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1o c2o c1ov c2o c1ov c2o c1o c2ov     c1o c2o c1ov c2ov c1o c2ov          
mPW1PW91 c1o c2o c1ov c2o c1ov c2o c1ov c2ov c1ov c2ov c1ov c2ov c1o c2o c1ov c2ov c1ov c2o c1ov c2ov     c1o c2ov c1ov c2ov c1ov c2ov   c1o c2ov c1o c2ov    
M06-2X c1o c2o c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2o c1ov c2ov c1ov c2ov c1ov c2ov     c1ov c2ov c1ov c2ov c1ov c2ov   c1ov c2ov c1ov c2o    
PBEPBE c1o c2ov c1ov c2o c1ov c2o c1ov c2ov c1ov c2ov c1ov c2ov c1o c2o c1ov c2ov c1ov c2ov c1ov c2ov   c1ov c1o c2ov c1ov c2ov c1ov c2o   c1o c2ov c1o c2ov    
PBEPBEultrafine   c1ov     c1ov c2ov   c1ov         c1ov c1o c2ov c1ov c2ov c1ov c2o   c1o c2ov c1o c2ov    
PBE1PBE c1o c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1o c2o c1ov c2ov c1ov c2ov c1ov c2ov     c1o c2ov c1ov c2ov c1ov c2ov   c1o c2ov c1o c2ov    
HSEh1PBE c1o c2o c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1o c2o c1ov c2ov c1ov c2ov c1ov c2ov     c1o c2o c1ov c2ov c1ov c2o   c1o c2ov c1o c2ov    
TPSSh   c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1o c2o c1ov c2ov   c1o     c1o c2ov c1ov c2ov c1o c2ov   c1o c2ov c1o c2ov    
wB97X-D     c1ov c2o   c1ov c2ov       c1ov c2o           c1ov c2o     c1o c2ov    
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) 6-311+G(3df,2p) 6-311+G(3df,2pd) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ cc-pV(T+d)Z
Moller Plesset perturbation MP2 c1o c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1o c2ov c1ov c2ov c1ov c2ov c1ov c2o   c1ov c1o c2ov c1ov c2ov c1ov c2ov c1ov c2o c1o c2ov c1o c2ov c1o c2ov  
MP2=FULL c1o c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1o c2ov c1ov c2ov c1ov c2ov c1ov c2ov     c1o c2ov c1ov c2ov c1ov c2ov c1ov c2ov c1o c2ov c1o c2ov c1o c2ov  
MP3         c1ov c2o   c1ov c2ov           c1o c2o c1ov c2o c1ov c2o          
MP3=FULL         c1ov c2ov   c1o c2ov           c1o c2ov c1ov c2o c1ov c2o          
MP4   c1o c2o     c1o c2o       c1o c2o       c1o c2ov c1o c2o c1ov c2o   c1o c2o c1o c2o    
MP4=FULL   c1ov c2o     c1o c2o       c1ov c2o         c1o c2o c1o c2o   c1o c2o c1o c2o    
B2PLYP c1o c2o c1ov c2o c1ov c2o c1ov c2ov c1ov c2o c1ov c2ov c1o c2o c1ov c2ov c1ov c2ov c1ov c2o     c1o c2ov c1ov c2o c1ov c2o   c1o c2ov c1o c2ov    
B2PLYP=FULL c1o c2o c1ov c2o c1ov c2o c1ov c2ov c1ov c2ov c1ov c2o c1o c2o c1ov c2ov c1ov c2ov c1ov c2ov     c1o c2ov c1ov c2o c1ov c2o   c1o c2ov c1o c2ov    
Configuration interaction CID   c1ov c2ov c1ov c2o c1ov c2o c1ov c2ov     c1ov c2ov                        
CISD   c1ov c2o c1ov c2ov c1ov c2ov c1ov c2ov     c1ov c2ov                        
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) 6-311+G(3df,2p) 6-311+G(3df,2pd) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ cc-pV(T+d)Z
Quadratic configuration interaction QCISD   c1ov c2o c1ov c2o c1ov c2ov c1ov c2o c1ov c2ov c1o c2ov c1ov c2ov c1ov c2ov c1ov c2ov     c1o c2ov c1ov c2ov c1ov c2ov   c1o c2ov c1o c2ov    
QCISD(T)         c1ov c2ov               c1o c2ov c1ov c2o c1ov c2o   c1o c2o c1o c2o    
QCISD(TQ)         c1ov                 c1ov c1o c1o c1o c1o    
Coupled Cluster CCD   c1ov c2ov c1ov c2o c1ov c2o c1ov c2ov c1ov c2ov c1o c2ov c1ov c2ov c1ov c2ov c1ov c2o     c1o c2ov c1ov c2ov c1ov c2ov   c1o c2ov c1o c2ov    
CCSD         c1ov c2ov   c1o           c1o c2ov c1ov c2o c1ov c2o c1ov c2o c1o c2ov c1o c2ov c1o c2o  
CCSD=FULL         c1ov c2ov   c1o           c1o c2ov c1ov c2o c1ov c2o c1ov c2o c1o c2ov c1o c2ov c1o c2o  
CCSD(T)   c1ov     c1ov c2ov   c1o         c1o c1o c2ov c2o c1ov c1o c2o c1o c2o c1o c2o c1o c2o  
CCSD(T)=FULL         c1ov c2o               c1o c2ov c1ov c2o c1o c2o c1o c2o c1o c2o c1o c2o c1o c2o  
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) 6-311+G(3df,2p) 6-311+G(3df,2pd) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ cc-pV(T+d)Z

Methods with effective core potentials (select basis sets)
CEP-31G CEP-31G* CEP-121G CEP-121G* LANL2DZ SDD
hartree fock HF c1o c2ov c1o c2ov c1o c2ov c1o c2ov c1o c2ov c1o c2ov
density functional B1B95 c1ov c1ov        
B3LYP c1o c2o c1o c2o c1o c2ov c1ov c2ov c1o c2o c1o c2o
Moller Plesset perturbation MP2 c1o c2ov c1o c2o c1o c2ov c1ov c2ov c1o c2ov c1o c2ov

Single point energy calculations (select basis sets)
6-31G* 6-311+G(3df,2p) cc-pVDZ cc-pVTZ aug-cc-pVDZ aug-cc-pVTZ cc-pV(T+d)Z
Moller Plesset perturbation MP2FC// HF/6-31G*   c1e   c1e     c1e
MP2FC// B3LYP/6-31G* c1e c1e c1e c1e     c1e
MP2FC// MP2FC/6-31G*       c1e c1e c1e c1e
MP4// HF/6-31G*   c1e   c1e     c1e
MP4// B3LYP/6-31G*     c1e c1e     c1e
MP4// MP2/6-31G*       c1e     c1e
Coupled Cluster CCSD// B3LYP/6-31G*   c1e          
CCSD(T)// B3LYP/6-31G* c1e c1e   c1e      
CCSD// MP2FC/6-31G*         c1e c1e  
CCSD(T)// MP2FC/6-31G*         c1e c1e  

Counterpoise corrected calculations (select basis sets)
3-21G 6-31G* 6-31+G** 6-311+G(3df,2pd) aug-cc-pVTZ
hartree fock HF_cp c1o c1o c1o c1o c1o
HF_cp_opt c1ov c1ov c1ov c1ov c1ov
density functional B3LYP_cp c1o c1o c1o c1o c1o
B3LYP_cp_opt c1ov c1ov c1ov c1ov c1ov
B3LYPultrafine_cp c1o c1o c1o c1o c1o
B3LYPultrafine_cp_opt c1ov c1ov c1ov c1ov c1ov
PBEPBE_cp c1o c1o c1o c1o c1o
PBEPBE_cp_opt c1ov c1ov c1ov c1ov c1ov
PBEPBEultrafine_cp c1o c1o c1o c1o c1o
PBEPBEultrafine_cp_opt c1ov c1ov c1ov c1ov c1ov
Moller Plesset perturbation MP2_cp c1o c1o c1o c1o c1o
MP2_cp_opt c1ov c1ov c1ov c1ov c1ov
Coupled Cluster CCSD(T)_cp c1o c1o c1o    
For descriptions of the methods (AM1, HF, MP2, ...) and basis sets (3-21G, 3-21G*, 6-31G, ...) see the glossary in section I.C. Predefined means the basis set used is determined by the method.