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All results from a given calculation for CH2BrCH2Br (Ethane, 1,2-dibromo-)

using model chemistry: CCSD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
1 2 no C2 1A

Conformer 1 (C2H)

Jump to S1C2
Energy calculated at CCSD/aug-cc-pVTZ
 hartrees
Energy at 0K-5223.884009
Energy at 298.15K 
HF Energy-5223.023916
Nuclear repulsion energy419.979769
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CCSD/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD/aug-cc-pVTZ
ABC
0.95293 0.01996 0.01970

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/aug-cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.491 0.572 0.000
C2 -0.491 -0.572 0.000
Br3 -0.491 2.248 0.000
Br4 0.491 -2.248 0.000
H5 1.113 0.572 0.889
H6 1.113 0.572 -0.889
H7 -1.113 -0.572 0.889
H8 -1.113 -0.572 -0.889

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6 H7 H8
C11.50811.94252.82051.08461.08462.16122.1612
C21.50812.82051.94252.16122.16121.08461.0846
Br31.94252.82054.60252.48452.48453.02143.0214
Br42.82051.94254.60253.02143.02142.48452.4845
H51.08462.16122.48453.02141.77762.50203.0692
H61.08462.16122.48453.02141.77763.06922.5020
H72.16121.08463.02142.48452.50203.06921.7776
H82.16121.08463.02142.48453.06922.50201.7776

picture of Ethane, 1,2-dibromo- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br4 109.000 C1 C2 H7 111.895
C1 C2 H8 111.895 C2 C1 Br3 109.000
C2 C1 H5 111.895 C2 C1 H6 111.895
Br3 C1 H5 106.866 Br3 C1 H6 106.866
Br4 C2 H7 106.866 Br4 C2 H8 106.866
H5 C1 H6 110.058 H7 C2 H8 110.058
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at CCSD/aug-cc-pVTZ
 hartrees
Energy at 0K-5223.881030
Energy at 298.15K 
HF Energy-5223.019706
Nuclear repulsion energy455.022405
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CCSD/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD/aug-cc-pVTZ
ABC
0.25569 0.03134 0.02875

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.312 0.687 1.176
C2 -0.312 -0.687 1.176
Br3 -0.312 1.782 -0.292
Br4 0.312 -1.782 -0.292
H5 0.033 1.217 2.084
H6 1.393 0.639 1.095
H7 -0.033 -1.217 2.084
H8 -1.393 -0.639 1.095

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6 H7 H8
C11.50981.93482.87311.08741.08542.13772.1616
C21.50982.87311.93482.13772.16161.08741.0854
Br31.93482.87313.61792.46752.47773.83642.9924
Br42.87311.93483.61793.83642.99242.46752.4777
H51.08742.13772.46753.83641.77802.43412.5410
H61.08542.16162.47772.99241.77802.54103.0652
H72.13771.08743.83642.46752.43412.54101.7780
H82.16161.08542.99242.47772.54103.06521.7780

picture of Ethane, 1,2-dibromo- state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br4 112.455 C1 C2 H7 109.716
C1 C2 H8 111.760 C2 C1 Br3 112.455
C2 C1 H5 109.716 C2 C1 H6 111.760
Br3 C1 H5 106.039 Br3 C1 H6 106.848
Br4 C2 H7 106.039 Br4 C2 H8 106.848
H5 C1 H6 109.825 H7 C2 H8 109.825
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability