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State	Conformation	minimum conformation	conformer description	state description
1	1	yes	D*H	¹Σ_g
2	1	yes	D*H	³Π_g

	hartrees
Energy at 0K	-29.322872
Energy at 298.15K	-29.320595
HF Energy	-29.322872
Nuclear repulsion energy	3.386734

Atom	x (Å)	y (Å)	z (Å)
Be1	0.000	0.000	1.250
Be2	0.000	0.000	-1.250

	Be1	Be2
Be1		2.5000
Be2	2.5000

Number	Element	Mulliken	CHELPG	AIM	ESP
1	Be	0.000
2	Be	0.000

All results from a given calculation for Be₂ (Beryllium diatomic)

using model chemistry: B3PW91/6-311G**

States and conformations

State 1 (¹Σ_g)

State 2 (³Π_g)

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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Calc. vs exp. Bad Vib. HF vs MP2 Bad scale factors Low excited states Oddities NaCN Is not linear FAQ Help Units Choose Units Energy Bond length Rotational Constant Moment of Inertia Dipole and Quadrupole Polarizability Explanations Hartree cm-1 Debye Credits Just show me Show me a calculated geometry Summary Using older interface Limit Basis sets Method options List Recent molecules Choose a few Molecules Number of atoms By heavy atoms Diatomics InChI Deuterated Dimers Geometry Point group Point group count Bonds types Isodesmic reactions Bad point group Multiple conformers, states Vibrations Big anharmonicity Energy Enthalpy at 0 Kelvin Similar molecules Similar Isomers Cis/trans Tautomers Multiple conformers, states Ions, Dipoles, etc. List Ions Ionization changes point group Dipole Quadrupole Polarizability Proton Affinities Index of CCCBDB Feedback Error form Wants
You are here: Calculated > Energy > Optimized > Energy

	hartrees
Energy at 0K	-29.303390
Energy at 298.15K	-29.301419
HF Energy	-29.303390
Nuclear repulsion energy	4.208994

<r²>	22.039
(<r²>)^1/2	4.695

All results from a given calculation for Be2 (Beryllium diatomic)

using model chemistry: B3PW91/6-311G**

States and conformations

State 1 (1Σg)

State 2 (3Πg)

All results from a given calculation for Be₂ (Beryllium diatomic)

State 1 (¹Σ_g)

State 2 (³Π_g)