National Institute of Standards and Technology

Computational Chemistry Comparison and Benchmark DataBase
Release 22	May 2022
NIST Standard Reference Database 101

I	Introduction
II	Experimental data
III	Calculated data
IV	Data comparisons
V	Cost comparisons
VI	Input and output files
VII	Tutorials and Units
VIII	Links to other sites
IX	Feedback
X	Older CCCBDB versions
XII	Geometries
XIII	Vibrations
XIV	Reaction data
XV	Entropy data
XVI	Bibliographic data
XVII	Ion data
XVIII	Bad calculations
XIX	Index of properties
XX	H-bond dimers
XXI	Oddities

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III.F.2.

Completed calculations for Al^- (Aluminum atom anion)

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.

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Methods with predefined basis sets

semi-empirical	AM1	s1o
	PM3	s1o s2o
composite	G1	s1e
	G2MP2	s1e
	G2	s1e s2e
	G3	s1e s2e
	G3B3	s1e s2e
	G3MP2	s1e
	G4	s1e s2e
	CBS-Q	s1e s2e

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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)	TZVP	cc-pVDZ	cc-pVTZ	cc-pVQZ	aug-cc-pVDZ	aug-cc-pVTZ	aug-cc-pVQZ	daug-cc-pVDZ	daug-cc-pVTZ
hartree fock	HF	s1o	s1o	s1o	s1o	s1o s2o	s1o	s1o	s1o	s1o	s1o	s1o	s1o s2o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o s2o
	ROHF		s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o		s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o
density functional	LSDA	s1o	s1o	s1o	s1o
	BLYP	s1o	s1o	s1o	s1o	s1o s2o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o		s1o	s1o		s1o	s1o
	B1B95	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o		s1o	s1o		s1o	s1o
	B3LYP	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o s2o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o
	B3LYPultrafine		s1o			s1o	s1o	s1o	s1o		s1o	s1o	s1o	s1o	s1o		s1o	s1o s2o		s1o	s1o
	B3PW91	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o		s1o	s1o		s1o	s1o
	mPW1PW91	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o		s1o	s1o		s1o	s1o
	M06-2X	s1o	s1o	s1o s2o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o		s1o	s1o		s1o	s1o
	PBEPBE	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o		s1o	s1o		s1o	s1o
	PBEPBEultrafine		s1o			s1o	s1o	s1o	s1o		s1o	s1o	s1o	s1o	s1o		s1o	s1o		s1o	s1o
	PBE1PBE	s1o	s1o	s1o	s1o	s1o s2o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o		s1o	s1o		s1o	s1o
	HSEh1PBE	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o		s1o	s1o		s1o	s1o
	TPSSh	s1o	s1o	s1o	s1o	s1o s2o	s1o	s1o s2o	s1o	s1o	s1o s2o	s1o	s1o	s1o	s1o s2o	s1o	s1o	s1o	s1o	s1o	s1o
	wB97X-D	s1o	s1o	s1o s2o	s1o	s1o s2o	s1o	s1o s2o	s1o	s1o s2o	s1o	s1o	s1o s2o	s1o s2o	s1o s2o	s1o	s1o	s1o s2o	s1o	s1o	s1o
	B97D3	s1o	s1o s2o	s1o	s1o	s1o s2o	s1o	s1o s2o	s1o	s1o s2o	s1o	s1o s2o	s1o s2o	s1o	s1o s2o	s1o	s1o	s1o s2o	s1o	s1o	s1o
		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)	TZVP	cc-pVDZ	cc-pVTZ	cc-pVQZ	aug-cc-pVDZ	aug-cc-pVTZ	aug-cc-pVQZ	daug-cc-pVDZ	daug-cc-pVTZ
Moller Plesset perturbation	MP2	s1o	s1o	s1o	s1o	s1o s2o	s1o	s1o	s1o s2o	s1o	s1o	s1o	s1o s2o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o
	MP2=FULL	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o s2o	s1o	s1o	s1o
	ROMP2	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o		s1o			s1o	s1o
	MP3					s1o		s1o s2o				s1o	s1o	s1o	s1o					s1o	s1o
	MP3=FULL		s1o	s1o	s1o	s1o s2o	s1o	s1o s2o	s1o	s1o	s1o	s1o	s1o	s1o	s1o		s1o	s1o		s1o	s1o
	MP4		s1o			s1o				s1o		s1o	s1o	s1o	s1o		s1o	s1o		s1o	s1o
	MP4=FULL		s1o			s1o				s1o		s1o		s1o	s1o		s1o	s1o		s1o	s1o
	B2PLYP	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o s2o		s1o	s1o		s1o	s1o
	B2PLYP=FULL	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o		s1o	s1o		s1o	s1o
	B2PLYP=FULLultrafine	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o		s1o	s1o		s1o	s1o
Configuration interaction	CID		s1o	s1o	s1o	s1o			s1o			s1o		s1o	s1o					s1o	s1o
	CISD		s1o	s1o	s1o	s1o			s1o			s1o		s1o	s1o					s1o	s1o
		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)	TZVP	cc-pVDZ	cc-pVTZ	cc-pVQZ	aug-cc-pVDZ	aug-cc-pVTZ	aug-cc-pVQZ	daug-cc-pVDZ	daug-cc-pVTZ
Quadratic configuration interaction	QCISD		s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o		s1o	s1o		s1o	s1o
	QCISD(T)					s1o			s1o			s1o	s1o	s1o	s1o		s1o	s1o		s1o	s1o
	QCISD(T)=FULL					s1o s2o		s1o s2o				s1o		s1o s2o	s1o s2o	s1o s2o	s1o s2o	s1o s2o	s1o s2o	s1o	s1o
	QCISD(TQ)					s1o		s1o				s1o		s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o
	QCISD(TQ)=FULL					s1o		s1o				s1o		s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o
Coupled Cluster	CCD		s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o		s1o	s1o		s1o	s1o
	CCSD					s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o
	CCSD=FULL					s1o					s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o
	CCSD(T)					s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o
	CCSD(T)=FULL					s1o						s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o	s1o
		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)	TZVP	cc-pVDZ	cc-pVTZ	cc-pVQZ	aug-cc-pVDZ	aug-cc-pVTZ	aug-cc-pVQZ	daug-cc-pVDZ	daug-cc-pVTZ

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Methods with effective core potentials (select basis sets)

		CEP-31G	CEP-31G*	CEP-121G	CEP-121G*	LANL2DZ	SDD	cc-pVTZ-PP	aug-cc-pVTZ-PP	Def2TZVPP
hartree fock	HF	s1o	s1o	s1o	s1o	s1o	s1o			s1o s2o
	ROHF									s1o
density functional	BLYP									s1o
	B1B95									s1o
	B3LYP	s1o	s1o	s1o	s1o	s1o	s1o			s1o s2o
	B3LYPultrafine									s1o
	B3PW91									s1o
	mPW1PW91									s1o
	M06-2X									s1o
	PBEPBE									s1o s2o
	PBEPBEultrafine									s1o
	PBE1PBE									s1o
	HSEh1PBE									s1o
	TPSSh									s1o
	wB97X-D	s1o	s1o	s1o	s1o	s1o	s1o			s1o
	B97D3									s1o
Moller Plesset perturbation	MP2	s1o	s1o	s1o	s1o	s1o	s1o			s1o s2o
	MP2=FULL									s1o
	ROMP2									s1o
	MP3									s1o
	MP3=FULL									s1o
	MP4									s1o
	MP4=FULL									s1o
	B2PLYP									s1o
	B2PLYP=FULL									s1o
	B2PLYP=FULLultrafine									s1o
Configuration interaction	CID									s1o
	CISD									s1o
Quadratic configuration interaction	QCISD									s1o
	QCISD(T)									s1o
	QCISD(T)=FULL									s1o
	QCISD(TQ)									s1o
	QCISD(TQ)=FULL									s1o
Coupled Cluster	CCD									s1o
	CCSD									s1o
	CCSD=FULL									s1o
	CCSD(T)									s1o
	CCSD(T)=FULL									s1o

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Single point energy calculations (select basis sets)

		cc-pVDZ	cc-pVTZ	aug-cc-pVDZ	aug-cc-pVTZ
Moller Plesset perturbation	MP2FC// HF/6-31G*	s1e	s1e	s1e	s1e
	MP2FC// MP2FC/6-31G*				s1e
Coupled Cluster	CCSD(T)// HF/6-31G*	s1e	s1e	s1e	s1e
	CCSD(T)// B3LYP/6-31G*		s1e
	CCSD(T)// MP2FC/6-31G*				s1e

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.