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

using model chemistry: QCISD/6-31G**

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/6-31G**
 hartrees
Energy at 0K-2647.760748
Energy at 298.15K-2647.766289
HF Energy-2647.344420
Nuclear repulsion energy143.762840
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/6-31G**
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' 3333 3138 4.26      
2 A' 3300 3107 5.22      
3 A' 3232 3042 0.87      
4 A' 1700 1601 27.88      
5 A' 1449 1364 10.50      
6 A' 1316 1239 29.36      
7 A' 1048 987 6.47      
8 A' 611 575 20.14      
9 A' 351 330 0.09      
10 A" 987 929 38.91      
11 A" 928 874 17.76      
12 A" 596 561 10.44      

Unscaled Zero Point Vibrational Energy (zpe) 9425.0 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 8872.7 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/6-31G**
ABC
1.79872 0.13682 0.12715

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.467 -1.120 0.000
C2 -0.449 -2.087 0.000
Br3 0.000 0.730 0.000
H4 1.533 -1.289 0.000
H5 -0.135 -3.123 0.000
H6 -1.509 -1.879 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.33211.90761.07922.09102.1165
C21.33212.85252.13671.08171.0802
Br31.90762.85252.53443.85453.0135
H41.07922.13672.53442.47893.0985
H52.09101.08173.85452.47891.8531
H62.11651.08023.01353.09851.8531

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 119.695 C1 C2 H6 122.311
C2 C1 Br3 122.396 C2 C1 H4 124.443
Br3 C1 H4 113.162 H5 C2 H6 117.994
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability