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

using model chemistry: CCSD/cc-pVTZ-PP

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-PP
 hartrees
Energy at 0K-494.804318
Energy at 298.15K 
HF Energy-494.187737
Nuclear repulsion energy128.209337
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-PP
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 2991 26.65      
2 A' 3122 2978 2.24      
3 A' 3059 2919 18.23      
4 A' 1518 1448 1.74      
5 A' 1506 1437 1.09      
6 A' 1432 1366 3.78      
7 A' 1305 1245 49.22      
8 A' 1099 1049 0.02      
9 A' 996 950 10.69      
10 A' 600 572 11.96      
11 A' 291 278 1.22      
12 A" 3187 3041 9.19      
13 A" 3148 3003 7.81      
14 A" 1507 1437 8.18      
15 A" 1285 1226 0.30      
16 A" 1052 1003 0.21      
17 A" 781 745 2.86      
18 A" 264 252 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 14643.2 cm-1
Scaled (by 0.954) Zero Point Vibrational Energy (zpe) 13969.7 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 CCSD/cc-pVTZ-PP
ABC
1.00902 0.12755 0.11824

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.574 -2.019 0.000
C2 0.600 -1.062 0.000
Br3 0.000 0.789 0.000
H4 1.219 -1.171 0.885
H5 1.219 -1.171 -0.885
H6 -0.207 -3.047 0.000
H7 -1.194 -1.874 0.883
H8 -1.194 -1.874 -0.883

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51432.86592.17152.17151.09191.08871.0887
C21.51431.94631.08521.08522.14252.15842.1584
Br32.86591.94632.47192.47193.84173.04943.0494
H42.17151.08522.47191.76992.51702.51353.0729
H52.17151.08522.47191.76992.51703.07292.5135
H61.09192.14253.84172.51702.51701.76931.7693
H71.08872.15843.04942.51353.07291.76931.7655
H81.08872.15843.04943.07292.51351.76931.7655

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 111.206 C1 C2 H4 112.257
C1 C2 H5 112.257 C2 C1 H6 109.525
C2 C1 H7 110.979 C2 C1 H8 110.979
Br3 C2 H4 105.724 Br3 C2 H5 105.724
H4 C2 H5 109.270 H6 C1 H7 108.462
H6 C1 H8 108.462 H7 C1 H8 108.358
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability