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

using model chemistry: CCSD=FULL/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 CCSD=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-2651.548695
Energy at 298.15K 
HF Energy-2651.047193
Nuclear repulsion energy163.276698
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 CCSD=FULL/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' 3129 3129 26.52      
2 A' 3114 3114 5.35      
3 A' 3048 3048 20.22      
4 A' 1491 1491 1.28      
5 A' 1480 1480 0.83      
6 A' 1411 1411 3.51      
7 A' 1290 1290 50.05      
8 A' 1094 1094 0.03      
9 A' 988 988 10.53      
10 A' 585 585 13.11      
11 A' 293 293 1.42      
12 A" 3183 3183 9.02      
13 A" 3145 3145 9.14      
14 A" 1481 1481 7.89      
15 A" 1267 1267 0.20      
16 A" 1043 1043 0.18      
17 A" 771 771 2.33      
18 A" 259 259 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 14535.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14535.0 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 CCSD=FULL/aug-cc-pVDZ
ABC
0.98855 0.12552 0.11635

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.579 -2.032 0.000
C2 0.606 -1.075 0.000
Br3 0.000 0.796 0.000
H4 1.229 -1.183 0.897
H5 1.229 -1.183 -0.897
H6 -0.210 -3.073 0.000
H7 -1.205 -1.883 0.894
H8 -1.205 -1.883 -0.894

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.52402.88692.19052.19051.10411.10091.1009
C21.52401.96621.09771.09772.15822.17492.1749
Br32.88691.96622.49612.49613.87423.06983.0698
H42.19051.09772.49611.79432.53942.53273.1018
H52.19051.09772.49611.79432.53943.10182.5327
H61.10412.15823.87422.53942.53941.79021.7902
H71.10092.17493.06982.53273.10181.79021.7873
H81.10092.17493.06983.10182.53271.79021.7873

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 110.978 C1 C2 H4 112.325
C1 C2 H5 112.325 C2 C1 H6 109.375
C2 C1 H7 110.876 C2 C1 H8 110.876
Br3 C2 H4 105.581 Br3 C2 H5 105.581
H4 C2 H5 109.627 H6 C1 H7 108.561
H6 C1 H8 108.561 H7 C1 H8 108.530
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability