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

using model chemistry: MP2=FULL/aug-cc-pVQZ

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=FULL/aug-cc-pVQZ
 hartrees
Energy at 0K-2651.983593
Energy at 298.15K 
HF Energy-2651.150575
Nuclear repulsion energy166.419975
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=FULL/aug-cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/aug-cc-pVQZ
ABC
1.02446 0.13036 0.12081

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.569 -1.999 0.000
C2 0.594 -1.046 0.000
Br3 0.000 0.780 0.000
H4 1.213 -1.156 0.880
H5 1.213 -1.156 -0.880
H6 -0.202 -3.022 0.000
H7 -1.187 -1.853 0.879
H8 -1.187 -1.853 -0.879

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.50372.83682.15892.15891.08701.08431.0843
C21.50371.91991.08191.08192.13062.14372.1437
Br32.83681.91992.44882.44883.80763.01893.0189
H42.15891.08192.44881.76062.50162.49903.0561
H52.15891.08192.44881.76062.50163.05612.4990
H61.08702.13063.80762.50162.50161.76351.7635
H71.08432.14373.01892.49903.05611.76351.7578
H81.08432.14373.01893.05612.49901.76351.7578

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 111.327 C1 C2 H4 112.193
C1 C2 H5 112.193 C2 C1 H6 109.608
C2 C1 H7 110.808 C2 C1 H8 110.808
Br3 C2 H4 105.923 Br3 C2 H5 105.923
H4 C2 H5 108.901 H6 C1 H7 108.624
H6 C1 H8 108.624 H7 C1 H8 108.306
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability