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

using model chemistry: CCD/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-2651.605842
Energy at 298.15K 
HF Energy-2651.053013
Nuclear repulsion energy164.484520
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/6-311+G(3df,2p)
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' 3142 2963 20.22      
2 A' 3121 2944 5.90      
3 A' 3064 2889 16.86      
4 A' 1526 1439 2.13      
5 A' 1517 1430 1.52      
6 A' 1441 1359 4.02      
7 A' 1315 1240 45.64      
8 A' 1101 1039 0.14      
9 A' 1000 943 11.13      
10 A' 608 573 11.12      
11 A' 295 278 1.23      
12 A" 3189 3007 7.74      
13 A" 3155 2976 6.50      
14 A" 1515 1428 8.94      
15 A" 1289 1215 0.19      
16 A" 1062 1002 0.14      
17 A" 783 739 2.86      
18 A" 266 251 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 14693.3 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 13857.2 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 CCD/6-311+G(3df,2p)
ABC
1.00965 0.12701 0.11779

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.574 -2.023 0.000
C2 0.599 -1.063 0.000
Br3 0.000 0.791 0.000
H4 1.219 -1.174 0.885
H5 1.219 -1.174 -0.885
H6 -0.202 -3.050 0.000
H7 -1.195 -1.882 0.883
H8 -1.195 -1.882 -0.883

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51592.87222.17242.17241.09201.08891.0889
C21.51591.94881.08621.08622.14252.16062.1606
Br32.87221.94882.47602.47603.84653.05773.0577
H42.17241.08622.47601.77042.51482.51533.0748
H52.17241.08622.47601.77042.51483.07482.5153
H61.09202.14253.84652.51482.51481.76941.7694
H71.08892.16063.05772.51533.07481.76941.7665
H81.08892.16063.05773.07482.51531.76941.7665

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 111.382 C1 C2 H4 112.151
C1 C2 H5 112.151 C2 C1 H6 109.403
C2 C1 H7 111.027 C2 C1 H8 111.027
Br3 C2 H4 105.803 Br3 C2 H5 105.803
H4 C2 H5 109.167 H6 C1 H7 108.451
H6 C1 H8 108.451 H7 C1 H8 108.408
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability