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

using model chemistry: CCSD/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-2651.759967
Energy at 298.15K 
HF Energy-2651.142617
Nuclear repulsion energy164.603672
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/cc-pVTZ
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' 3136 2952 26.48      
2 A' 3122 2939 2.42      
3 A' 3060 2880 18.20      
4 A' 1518 1429 1.79      
5 A' 1506 1417 1.19      
6 A' 1432 1348 3.60      
7 A' 1306 1229 48.92      
8 A' 1099 1035 0.04      
9 A' 996 938 10.66      
10 A' 600 565 12.11      
11 A' 292 275 1.27      
12 A" 3187 3000 9.26      
13 A" 3149 2963 7.74      
14 A" 1507 1419 8.01      
15 A" 1286 1210 0.32      
16 A" 1054 992 0.19      
17 A" 780 735 2.94      
18 A" 265 249 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 14648.3 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 13787.0 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/cc-pVTZ
ABC
1.00956 0.12727 0.11800

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.574 -2.021 0.000
C2 0.600 -1.063 0.000
Br3 0.000 0.790 0.000
H4 1.219 -1.173 0.885
H5 1.219 -1.173 -0.885
H6 -0.205 -3.049 0.000
H7 -1.194 -1.877 0.883
H8 -1.194 -1.877 -0.883

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51462.86902.17122.17121.09181.08861.0886
C21.51461.94811.08521.08522.14242.15872.1587
Br32.86901.94812.47422.47423.84433.05273.0527
H42.17121.08522.47421.76932.51572.51363.0727
H52.17121.08522.47421.76932.51573.07272.5136
H61.09182.14243.84432.51572.51571.76921.7692
H71.08862.15873.05272.51363.07271.76921.7654
H81.08862.15873.05273.07272.51361.76921.7654

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 111.280 C1 C2 H4 112.209
C1 C2 H5 112.209 C2 C1 H6 109.496
C2 C1 H7 110.986 C2 C1 H8 110.986
Br3 C2 H4 105.765 Br3 C2 H5 105.765
H4 C2 H5 109.220 H6 C1 H7 108.472
H6 C1 H8 108.472 H7 C1 H8 108.355
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability