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

	hartrees
Energy at 0K	-4803.111800
Energy at 298.15K
HF Energy	-4803.111800
Nuclear repulsion energy	278.013420

Atom	x (Å)	y (Å)	z (Å)
Se1	0.000	0.000	1.100
Se2	0.000	0.000	-1.100

	Se1	Se2
Se1		2.2004
Se2	2.2004

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

All results from a given calculation for Se₂ (Selenium diatomic)

using model chemistry: B3LYP/6-311G*

States and conformations

State 1 (³Σ_g)

State 2 (¹Σ_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	-4803.079300
Energy at 298.15K	-4803.075286
Nuclear repulsion energy	277.760981

<r²>	104.660
(<r²>)^1/2	10.230

<r²>	104.900
(<r²>)^1/2	10.242

All results from a given calculation for Se2 (Selenium diatomic)

using model chemistry: B3LYP/6-311G*

States and conformations

State 1 (3Σg)

State 2 (1Σg+)

All results from a given calculation for Se₂ (Selenium diatomic)

State 1 (³Σ_g)

State 2 (¹Σ_g⁺)