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

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-2648.972739
Energy at 298.15K 
HF Energy-2648.562719
Nuclear repulsion energy163.847540
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 MP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2/6-31+G**
ABC
1.01354 0.12564 0.11667

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.573 -2.034 0.000
C2 0.597 -1.073 0.000
Br3 0.000 0.796 0.000
H4 1.216 -1.180 0.887
H5 1.216 -1.180 -0.887
H6 -0.193 -3.057 0.000
H7 -1.192 -1.894 0.884
H8 -1.192 -1.894 -0.884

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51382.88642.17092.17091.09161.08831.0883
C21.51381.96121.08661.08662.13602.15812.1581
Br32.88641.96122.48362.48363.85743.07183.0718
H42.17091.08662.48361.77352.50882.51173.0729
H52.17091.08662.48361.77352.50883.07292.5117
H61.09162.13603.85742.50882.50881.76971.7697
H71.08832.15813.07182.51173.07291.76971.7671
H81.08832.15813.07183.07292.51171.76971.7671

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 111.680 C1 C2 H4 112.154
C1 C2 H5 112.154 C2 C1 H6 109.069
C2 C1 H7 111.020 C2 C1 H8 111.020
Br3 C2 H4 105.529 Br3 C2 H5 105.529
H4 C2 H5 109.383 H6 C1 H7 108.550
H6 C1 H8 108.550 H7 C1 H8 108.566
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability