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

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/6-31G
 hartrees
Energy at 0K-2650.139879
Energy at 298.15K 
HF Energy-2650.061745
Nuclear repulsion energy161.048872
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 B2PLYP=FULL/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' 3157 3157 29.43 65.99 0.06 0.11
2 A' 3143 3143 1.71 124.90 0.49 0.66
3 A' 3068 3068 18.97 146.87 0.07 0.13
4 A' 1562 1562 4.90 16.87 0.73 0.84
5 A' 1544 1544 2.56 16.70 0.75 0.86
6 A' 1487 1487 6.45 7.29 0.66 0.79
7 A' 1323 1323 60.47 5.32 0.60 0.75
8 A' 1112 1112 0.55 8.10 0.60 0.75
9 A' 1015 1015 16.73 5.38 0.75 0.86
10 A' 538 538 19.08 23.38 0.33 0.49
11 A' 288 288 3.04 3.99 0.52 0.68
12 A" 3230 3230 12.42 43.97 0.75 0.86
13 A" 3170 3170 11.95 74.51 0.75 0.86
14 A" 1550 1550 9.51 22.55 0.75 0.86
15 A" 1313 1313 0.90 8.27 0.75 0.86
16 A" 1057 1057 0.00 11.43 0.75 0.86
17 A" 800 800 6.02 1.63 0.75 0.86
18 A" 263 263 0.01 0.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14808.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14808.7 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 B2PLYP=FULL/6-31G
ABC
0.97371 0.12190 0.11297

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.585 -2.050 0.000
C2 0.617 -1.121 0.000
Br3 0.000 0.809 0.000
H4 1.231 -1.213 0.894
H5 1.231 -1.213 -0.894
H6 -0.244 -3.093 0.000
H7 -1.205 -1.891 0.886
H8 -1.205 -1.891 -0.886

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51902.91862.18992.18991.09691.09301.0930
C21.51902.02621.08821.08822.15192.16742.1674
Br32.91862.02622.53052.53053.90983.08693.0869
H42.18991.08822.53051.78742.55122.52873.0920
H52.18991.08822.53051.78742.55123.09202.5287
H61.09692.15193.90982.55122.55121.77551.7755
H71.09302.16743.08692.52873.09201.77551.7713
H81.09302.16743.08693.09202.52871.77551.7713

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 110.003 C1 C2 H4 113.230
C1 C2 H5 113.230 C2 C1 H6 109.639
C2 C1 H7 111.099 C2 C1 H8 111.099
Br3 C2 H4 104.628 Br3 C2 H5 104.628
H4 C2 H5 110.414 H6 C1 H7 108.338
H6 C1 H8 108.338 H7 C1 H8 108.240
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability