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

using model chemistry: CCD/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 CCD/aug-cc-pVDZ
 hartrees
Energy at 0K-2651.530993
Energy at 298.15K 
HF Energy-2651.047119
Nuclear repulsion energy163.250213
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/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' 3131 3020 24.23      
2 A' 3113 3003 6.84      
3 A' 3049 2941 19.21      
4 A' 1491 1438 1.34      
5 A' 1481 1429 0.87      
6 A' 1412 1361 3.56      
7 A' 1297 1251 48.79      
8 A' 1094 1056 0.03      
9 A' 990 954 10.62      
10 A' 594 573 11.93      
11 A' 293 283 1.33      
12 A" 3182 3069 9.25      
13 A" 3147 3035 8.46      
14 A" 1480 1428 7.90      
15 A" 1269 1224 0.21      
16 A" 1047 1010 0.18      
17 A" 772 745 2.37      
18 A" 260 251 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 14551.4 cm-1
Scaled (by 0.9645) Zero Point Vibrational Energy (zpe) 14034.8 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 CCD/aug-cc-pVDZ
ABC
0.99021 0.12537 0.11624

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.579 -2.035 0.000
C2 0.605 -1.073 0.000
Br3 0.000 0.796 0.000
H4 1.229 -1.182 0.897
H5 1.229 -1.182 -0.897
H6 -0.205 -3.075 0.000
H7 -1.205 -1.888 0.894
H8 -1.205 -1.888 -0.894

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.52542.88952.19112.19111.10471.10161.1016
C21.52541.96421.09851.09852.15972.17722.1772
Br32.88951.96422.49612.49613.87623.07493.0749
H42.19111.09852.49611.79412.53852.53473.1037
H52.19111.09852.49611.79412.53853.10372.5347
H61.10472.15973.87622.53852.53851.79101.7910
H71.10162.17723.07492.53473.10371.79101.7882
H81.10162.17723.07493.10372.53471.79101.7882

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 111.174 C1 C2 H4 112.216
C1 C2 H5 112.216 C2 C1 H6 109.359
C2 C1 H7 110.917 C2 C1 H8 110.917
Br3 C2 H4 105.673 Br3 C2 H5 105.673
H4 C2 H5 109.489 H6 C1 H7 108.533
H6 C1 H8 108.533 H7 C1 H8 108.515
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability