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

using model chemistry: MP2/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/aug-cc-pVQZ
 hartrees
Energy at 0K-2651.841293
Energy at 298.15K 
HF Energy-2651.150728
Nuclear repulsion energy165.836217
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-pVQZ
Rotational Constants (cm-1) from geometry optimized at MP2/aug-cc-pVQZ
ABC
1.01638 0.12948 0.11998

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.572 -2.005 0.000
C2 0.597 -1.051 0.000
Br3 0.000 0.783 0.000
H4 1.216 -1.160 0.883
H5 1.216 -1.160 -0.883
H6 -0.204 -3.031 0.000
H7 -1.190 -1.858 0.881
H8 -1.190 -1.858 -0.881

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.50862.84582.16602.16601.08961.08661.0866
C21.50861.92861.08431.08432.13572.14982.1498
Br32.84581.92862.45642.45643.81913.02773.0277
H42.16601.08432.45641.76672.50972.50553.0646
H52.16601.08432.45641.76672.50973.06462.5055
H61.08962.13573.81912.50972.50971.76741.7674
H71.08662.14983.02772.50553.06461.76741.7626
H81.08662.14983.02773.06462.50551.76741.7626

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 111.187 C1 C2 H4 112.272
C1 C2 H5 112.272 C2 C1 H6 109.517
C2 C1 H7 110.816 C2 C1 H8 110.816
Br3 C2 H4 105.797 Br3 C2 H5 105.797
H4 C2 H5 109.118 H6 C1 H7 108.614
H6 C1 H8 108.614 H7 C1 H8 108.403
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability