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

using model chemistry: CCSD/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/cc-pVDZ
 hartrees
Energy at 0K-2651.502731
Energy at 298.15K 
HF Energy-2651.040208
Nuclear repulsion energy163.147605
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-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' 3150 2984 21.01      
2 A' 3122 2958 11.83      
3 A' 3065 2903 20.04      
4 A' 1498 1419 1.52      
5 A' 1489 1411 0.66      
6 A' 1417 1342 2.04      
7 A' 1295 1226 54.92      
8 A' 1097 1039 0.05      
9 A' 994 942 9.75      
10 A' 590 559 12.50      
11 A' 292 277 1.44      
12 A" 3192 3024 14.83      
13 A" 3164 2998 5.33      
14 A" 1486 1407 6.90      
15 A" 1271 1204 0.43      
16 A" 1045 990 0.24      
17 A" 775 734 2.95      
18 A" 272 258 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 14606.6 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 13836.8 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-pVDZ
ABC
0.99317 0.12507 0.11603

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.577 -2.038 0.000
C2 0.602 -1.072 0.000
Br3 0.000 0.797 0.000
H4 1.231 -1.185 0.897
H5 1.231 -1.185 -0.897
H6 -0.200 -3.078 0.000
H7 -1.206 -1.893 0.895
H8 -1.206 -1.893 -0.895

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.52432.89312.19082.19081.10631.10331.1033
C21.52431.96371.10101.10102.16012.17812.1781
Br32.89311.96372.49982.49983.88003.08093.0809
H42.19081.10102.49981.79342.53612.53743.1062
H52.19081.10102.49981.79342.53613.10622.5374
H61.10632.16013.88002.53612.53611.79361.7936
H71.10332.17813.08092.53743.10621.79361.7901
H81.10332.17813.08093.10622.53741.79361.7901

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 111.459 C1 C2 H4 112.124
C1 C2 H5 112.124 C2 C1 H6 109.365
C2 C1 H7 110.958 C2 C1 H8 110.958
Br3 C2 H4 105.845 Br3 C2 H5 105.845
H4 C2 H5 109.065 H6 C1 H7 108.529
H6 C1 H8 108.529 H7 C1 H8 108.434
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability