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All results from a given calculation for C2H3Br (vinyl bromide)

using model chemistry: QCISD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/aug-cc-pVTZ
 hartrees
Energy at 0K-2650.536757
Energy at 298.15K-2650.542324
HF Energy-2649.944327
Nuclear repulsion energy144.902353
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/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3268 3145 1.99      
2 A' 3240 3118 3.83      
3 A' 3172 3053 0.19      
4 A' 1671 1609 39.21      
5 A' 1419 1366 10.06      
6 A' 1298 1249 23.50      
7 A' 1031 993 6.40      
8 A' 629 606 19.41      
9 A' 348 335 0.03      
10 A" 986 949 31.16      
11 A" 942 907 25.27      
12 A" 604 581 15.43      

Unscaled Zero Point Vibrational Energy (zpe) 9304.6 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 8954.8 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at QCISD/aug-cc-pVTZ
ABC
1.83258 0.13886 0.12908

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.461 -1.106 0.000
C2 -0.444 -2.076 0.000
Br3 0.000 0.724 0.000
H4 1.527 -1.269 0.000
H5 -0.120 -3.108 0.000
H6 -1.506 -1.877 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.32631.88661.07892.08502.1128
C21.32632.83452.12991.08221.0808
Br31.88662.83452.51063.83403.0055
H41.07892.12992.51062.46923.0939
H52.08501.08223.83402.46921.8541
H62.11281.08083.00553.09391.8541

picture of vinyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 119.581 C1 C2 H6 122.408
C2 C1 Br3 122.866 C2 C1 H4 124.308
Br3 C1 H4 112.827 H5 C2 H6 118.010
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability