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

using model chemistry: B2PLYP=FULL/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-2653.014553
Energy at 298.15K 
HF Energy-2652.703417
Nuclear repulsion energy163.924175
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 B2PLYP=FULL/6-311+G(3df,2p)
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' 3127 3127 21.90 63.96 0.47 0.64
2 A' 3112 3112 2.40 118.75 0.16 0.28
3 A' 3053 3053 17.59 186.66 0.06 0.11
4 A' 1516 1516 2.45 3.18 0.75 0.86
5 A' 1504 1504 1.57 5.83 0.67 0.80
6 A' 1426 1426 4.62 0.90 0.65 0.79
7 A' 1290 1290 49.42 6.53 0.28 0.44
8 A' 1088 1088 0.09 4.15 0.12 0.21
9 A' 985 985 15.55 3.40 0.69 0.81
10 A' 577 577 15.17 20.61 0.19 0.31
11 A' 288 288 1.81 2.80 0.27 0.43
12 A" 3180 3180 6.75 26.91 0.75 0.86
13 A" 3143 3143 6.77 69.08 0.75 0.86
14 A" 1502 1502 10.01 5.39 0.75 0.86
15 A" 1277 1277 0.20 0.92 0.75 0.86
16 A" 1046 1046 0.09 1.27 0.75 0.86
17 A" 780 780 3.33 0.00 0.75 0.86
18 A" 262 262 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14577.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14577.7 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 B2PLYP=FULL/6-311+G(3df,2p)
ABC
1.01309 0.12583 0.11681

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.572 -2.031 0.000
C2 0.598 -1.075 0.000
Br3 0.000 0.795 0.000
H4 1.216 -1.176 0.885
H5 1.216 -1.176 -0.885
H6 -0.199 -3.056 0.000
H7 -1.193 -1.893 0.882
H8 -1.193 -1.893 -0.882

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51122.88312.17102.17101.09101.08721.0872
C21.51121.96291.08421.08422.13552.15742.1574
Br32.88311.96292.47902.47903.85603.06993.0699
H42.17101.08422.47901.76972.51432.51373.0725
H52.17101.08422.47901.76972.51433.07252.5137
H61.09102.13553.85602.51432.51431.76591.7659
H71.08722.15743.06992.51373.07251.76591.7637
H81.08722.15743.06993.07252.51371.76591.7637

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 111.508 C1 C2 H4 112.504
C1 C2 H5 112.504 C2 C1 H6 109.238
C2 C1 H7 111.210 C2 C1 H8 111.210
Br3 C2 H4 105.213 Br3 C2 H5 105.213
H4 C2 H5 109.405 H6 C1 H7 108.340
H6 C1 H8 108.340 H7 C1 H8 108.415
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability