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

using model chemistry: MP2/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-2650.270336
Energy at 298.15K-2650.275878
HF Energy-2649.848034
Nuclear repulsion energy143.800666
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/aug-cc-pVDZ
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' 3302 3167 1.03      
2 A' 3252 3119 4.35      
3 A' 3189 3058 0.04      
4 A' 1637 1569 44.72      
5 A' 1402 1345 10.70      
6 A' 1271 1219 23.14      
7 A' 1015 973 7.65      
8 A' 627 602 20.43      
9 A' 348 334 0.03      
10 A" 961 922 43.76      
11 A" 913 875 16.90      
12 A" 591 567 16.31      

Unscaled Zero Point Vibrational Energy (zpe) 9254.2 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 8874.8 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 MP2/aug-cc-pVDZ
ABC
1.78977 0.13689 0.12716

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.465 -1.108 0.000
C2 -0.450 -2.093 0.000
Br3 0.000 0.729 0.000
H4 1.543 -1.279 0.000
H5 -0.111 -3.132 0.000
H6 -1.522 -1.888 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.34501.89441.09182.10472.1349
C21.34502.85752.15351.09301.0915
Br31.89442.85752.53233.86233.0268
H41.09182.15352.53232.48403.1254
H52.10471.09303.86232.48401.8818
H62.13491.09153.02683.12541.8818

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 119.014 C1 C2 H6 122.035
C2 C1 Br3 122.897 C2 C1 H4 123.865
Br3 C1 H4 113.238 H5 C2 H6 118.951
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability