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

using model chemistry: MP2/daug-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 MP2/daug-cc-pVDZ
 hartrees
Energy at 0K-2651.498344
Energy at 298.15K 
HF Energy-2651.048015
Nuclear repulsion energy163.715368
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 MP2/daug-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' 3156 3156 16.30 72.24 0.69 0.81
2 A' 3121 3121 10.34 119.43 0.08 0.14
3 A' 3063 3063 17.23 197.76 0.03 0.07
4 A' 1487 1487 1.66 2.80 0.75 0.86
5 A' 1469 1469 0.87 5.68 0.67 0.80
6 A' 1394 1394 4.89 1.08 0.68 0.81
7 A' 1280 1280 46.37 5.75 0.28 0.43
8 A' 1093 1093 0.09 5.32 0.14 0.24
9 A' 984 984 12.37 3.32 0.63 0.77
10 A' 597 597 11.67 20.42 0.17 0.29
11 A' 292 292 1.35 2.39 0.27 0.42
12 A" 3198 3198 8.34 21.80 0.75 0.86
13 A" 3171 3171 5.17 72.26 0.75 0.86
14 A" 1477 1477 9.05 5.31 0.75 0.86
15 A" 1262 1262 0.25 0.94 0.75 0.86
16 A" 1041 1041 0.17 1.17 0.75 0.86
17 A" 769 769 2.82 0.01 0.75 0.86
18 A" 264 264 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14558.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14558.9 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 MP2/daug-cc-pVDZ
ABC
0.99277 0.12623 0.11700

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.578 -2.027 0.000
C2 0.604 -1.070 0.000
Br3 0.000 0.793 0.000
H4 1.228 -1.180 0.896
H5 1.228 -1.180 -0.896
H6 -0.207 -3.066 0.000
H7 -1.203 -1.878 0.892
H8 -1.203 -1.878 -0.892

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.52122.87922.18712.18711.10251.09921.0992
C21.52121.95891.09741.09742.15412.17122.1712
Br32.87921.95892.49082.49083.86443.06273.0627
H42.18711.09742.49081.79192.53362.52933.0975
H52.18711.09742.49081.79192.53363.09752.5293
H61.10252.15413.86442.53362.53361.78791.7879
H71.09922.17123.06272.52933.09751.78791.7842
H81.09922.17123.06273.09752.52931.78791.7842

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 111.032 C1 C2 H4 112.275
C1 C2 H5 112.275 C2 C1 H6 109.338
C2 C1 H7 110.880 C2 C1 H8 110.880
Br3 C2 H4 105.693 Br3 C2 H5 105.693
H4 C2 H5 109.468 H6 C1 H7 108.592
H6 C1 H8 108.592 H7 C1 H8 108.497
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability