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

using model chemistry: MP2/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 MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-2651.494516
Energy at 298.15K 
HF Energy-2651.047265
Nuclear repulsion energy163.678627
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/aug-cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at MP2/aug-cc-pVDZ
ABC
0.99140 0.12622 0.11698

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.579 -2.027 0.000
C2 0.605 -1.071 0.000
Br3 0.000 0.793 0.000
H4 1.229 -1.179 0.897
H5 1.229 -1.179 -0.897
H6 -0.209 -3.066 0.000
H7 -1.203 -1.877 0.893
H8 -1.203 -1.877 -0.893

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.52122.87912.18822.18821.10291.09971.0997
C21.52121.96001.09761.09762.15452.17132.1713
Br32.87911.96002.49092.49093.86513.06203.0620
H42.18821.09762.49091.79332.53572.52973.0986
H52.18821.09762.49091.79332.53573.09862.5297
H61.10292.15453.86512.53572.53571.78851.7885
H71.09972.17133.06202.52973.09861.78851.7855
H81.09972.17133.06203.09862.52971.78851.7855

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 110.962 C1 C2 H4 112.339
C1 C2 H5 112.339 C2 C1 H6 109.347
C2 C1 H7 110.861 C2 C1 H8 110.861
Br3 C2 H4 105.612 Br3 C2 H5 105.612
H4 C2 H5 109.553 H6 C1 H7 108.583
H6 C1 H8 108.583 H7 C1 H8 108.545
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability