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

using model chemistry: MP2=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-2637.614288
Energy at 298.15K-2637.619869
HF Energy-2637.289844
Nuclear repulsion energy143.295761
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 MP2=FULL/3-21G*
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' 3285 3114 2.90      
2 A' 3252 3083 3.50      
3 A' 3189 3023 0.12      
4 A' 1650 1564 28.04      
5 A' 1482 1405 14.71      
6 A' 1346 1276 24.97      
7 A' 1086 1029 9.93      
8 A' 625 593 18.92      
9 A' 355 337 0.15      
10 A" 1003 951 50.15      
11 A" 953 904 29.70      
12 A" 611 579 12.72      

Unscaled Zero Point Vibrational Energy (zpe) 9418.2 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 8928.4 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 MP2=FULL/3-21G*
ABC
1.78751 0.13592 0.12632

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.469 -1.124 0.000
C2 -0.450 -2.094 0.000
Br3 0.000 0.732 0.000
H4 1.539 -1.291 0.000
H5 -0.141 -3.135 0.000
H6 -1.513 -1.885 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.33601.91401.08282.10172.1229
C21.33602.86162.14441.08561.0840
Br31.91402.86162.54133.86963.0226
H41.08282.14442.54132.49473.1090
H52.10171.08563.86962.49471.8562
H62.12291.08403.02263.10901.8562

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 120.074 C1 C2 H6 122.281
C2 C1 Br3 122.398 C2 C1 H4 124.557
Br3 C1 H4 113.045 H5 C2 H6 117.645
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability