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

using model chemistry: QCISD/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/cc-pVTZ
 hartrees
Energy at 0K-2650.522753
Energy at 298.15K-2650.528324
HF Energy-2649.943426
Nuclear repulsion energy144.825153
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/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' 3273 3127 2.31      
2 A' 3243 3099 4.46      
3 A' 3177 3035 0.25      
4 A' 1676 1602 36.35      
5 A' 1426 1363 10.16      
6 A' 1302 1244 23.94      
7 A' 1035 989 6.79      
8 A' 630 602 19.22      
9 A' 349 333 0.02      
10 A" 991 947 37.07      
11 A" 947 905 23.98      
12 A" 603 576 13.88      

Unscaled Zero Point Vibrational Energy (zpe) 9326.6 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 8911.6 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/cc-pVTZ
ABC
1.83723 0.13860 0.12888

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.460 -1.106 0.000
C2 -0.444 -2.078 0.000
Br3 0.000 0.725 0.000
H4 1.526 -1.271 0.000
H5 -0.118 -3.109 0.000
H6 -1.506 -1.881 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.32641.88801.07842.08472.1129
C21.32642.83712.12821.08181.0802
Br31.88802.83712.51193.83593.0098
H41.07842.12822.51192.46663.0925
H52.08471.08183.83592.46661.8528
H62.11291.08023.00983.09251.8528

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 119.571 C1 C2 H6 122.468
C2 C1 Br3 122.965 C2 C1 H4 124.176
Br3 C1 H4 112.859 H5 C2 H6 117.960
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability