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

using model chemistry: QCISD(T)/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at QCISD(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-5223.921124
Energy at 298.15K 
HF Energy-5223.023827
Nuclear repulsion energy419.182592
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 QCISD(T)/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/aug-cc-pVTZ
ABC
0.94595 0.01990 0.01964

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.494 0.571 0.000
C2 -0.494 -0.571 0.000
Br3 -0.494 2.251 0.000
Br4 0.494 -2.251 0.000
H5 1.116 0.571 0.891
H6 1.116 0.571 -0.891
H7 -1.116 -0.571 0.891
H8 -1.116 -0.571 -0.891

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6 H7 H8
C11.51041.94862.82271.08681.08682.16552.1655
C21.51042.82271.94862.16552.16551.08681.0868
Br31.94862.82274.60952.49152.49153.02433.0243
Br42.82271.94864.60953.02433.02432.49152.4915
H51.08682.16552.49153.02431.78272.50643.0757
H61.08682.16552.49153.02431.78273.07572.5064
H72.16551.08683.02432.49152.50643.07571.7827
H82.16551.08683.02432.49153.07572.50641.7827

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 108.723 C1 C2 H7 111.948
C1 C2 H8 111.948 C2 C1 Br3 108.723
C2 C1 H5 111.948 C2 C1 H6 111.948
Br3 C1 H5 106.876 Br3 C1 H6 106.876
Br4 C2 H7 106.876 Br4 C2 H8 106.876
H5 C1 H6 110.198 H7 C2 H8 110.198
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability