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All results from a given calculation for C2H5Br (Ethyl bromide)

using model chemistry: CCD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/TZVP
 hartrees
Energy at 0K-2651.648202
Energy at 298.15K 
HF Energy-2651.089618
Nuclear repulsion energy163.901245
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 CCD/TZVP
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' 3158 2993 30.79      
2 A' 3144 2980 3.12      
3 A' 3077 2917 19.52      
4 A' 1524 1444 1.85      
5 A' 1517 1438 0.78      
6 A' 1456 1380 2.88      
7 A' 1336 1266 61.78      
8 A' 1107 1050 0.01      
9 A' 1001 949 9.39      
10 A' 597 566 12.82      
11 A' 294 279 1.37      
12 A" 3213 3046 11.62      
13 A" 3171 3006 9.63      
14 A" 1513 1435 7.23      
15 A" 1295 1228 0.45      
16 A" 1067 1011 0.52      
17 A" 791 750 2.17      
18 A" 275 261 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 14767.5 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 13999.6 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 CCD/TZVP
ABC
1.01035 0.12588 0.11683

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.573 -2.031 0.000
C2 0.599 -1.071 0.000
Br3 0.000 0.795 0.000
H4 1.217 -1.183 0.886
H5 1.217 -1.183 -0.886
H6 -0.198 -3.058 0.000
H7 -1.195 -1.890 0.884
H8 -1.195 -1.890 -0.884

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51512.88362.17042.17041.09291.08971.0897
C21.51511.95981.08611.08612.14042.16092.1609
Br32.88361.95982.48522.48523.85763.06913.0691
H42.17041.08612.48521.77212.51082.51363.0742
H52.17041.08612.48521.77212.51083.07422.5136
H61.09292.14043.85762.51082.51081.77121.7712
H71.08972.16093.06912.51363.07421.77121.7676
H81.08972.16093.06913.07422.51361.77121.7676

picture of Ethyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br3 111.526 C1 C2 H4 112.047
C1 C2 H5 112.047 C2 C1 H6 109.242
C2 C1 H7 111.064 C2 C1 H8 111.064
Br3 C2 H4 105.754 Br3 C2 H5 105.754
H4 C2 H5 109.339 H6 C1 H7 108.497
H6 C1 H8 108.497 H7 C1 H8 108.404
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability