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

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-2648.902622
Energy at 298.15K 
HF Energy-2648.539032
Nuclear repulsion energy163.905542
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 CID/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3224 2978 25.03      
2 A' 3212 2966 2.89      
3 A' 3143 2904 17.14      
4 A' 1580 1460 2.60      
5 A' 1573 1453 1.27      
6 A' 1500 1386 5.41      
7 A' 1359 1255 60.08      
8 A' 1138 1051 0.38      
9 A' 1028 950 11.56      
10 A' 600 554 16.72      
11 A' 303 280 2.02      
12 A" 3282 3032 9.19      
13 A" 3242 2994 8.13      
14 A" 1569 1450 8.39      
15 A" 1333 1231 0.43      
16 A" 1092 1009 0.15      
17 A" 806 745 3.75      
18 A" 274 253 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 15129.6 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 13975.2 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 CID/6-31G*
ABC
1.00438 0.12615 0.11698

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.575 -2.027 0.000
C2 0.602 -1.075 0.000
Br3 0.000 0.794 0.000
H4 1.220 -1.180 0.886
H5 1.220 -1.180 -0.886
H6 -0.210 -3.057 0.000
H7 -1.195 -1.880 0.883
H8 -1.195 -1.880 -0.883

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51472.87952.17422.17421.09271.08921.0892
C21.51471.96321.08561.08562.14252.15852.1585
Br32.87951.96322.48422.48423.85693.05933.0593
H42.17421.08562.48421.77242.52082.51473.0750
H52.17421.08562.48421.77242.52083.07502.5147
H61.09272.14253.85692.52082.52081.77101.7710
H71.08922.15853.05932.51473.07501.77101.7669
H81.08922.15853.05933.07502.51471.77101.7669

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 111.120 C1 C2 H4 112.425
C1 C2 H5 112.425 C2 C1 H6 109.449
C2 C1 H7 110.930 C2 C1 H8 110.930
Br3 C2 H4 105.491 Br3 C2 H5 105.491
H4 C2 H5 109.440 H6 C1 H7 108.527
H6 C1 H8 108.527 H7 C1 H8 108.409
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability