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

using model chemistry: B2PLYP=FULL/3-21G*

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/3-21G*
 hartrees
Energy at 0K-2640.247092
Energy at 298.15K 
HF Energy-2640.137906
Nuclear repulsion energy163.130442
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/3-21G*
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' 3151 3151 21.66 47.63 0.50 0.67
2 A' 3135 3135 2.64 108.97 0.24 0.39
3 A' 3079 3079 14.70 120.11 0.08 0.15
4 A' 1587 1587 3.68 16.48 0.73 0.84
5 A' 1562 1562 3.52 15.80 0.75 0.86
6 A' 1487 1487 7.27 5.79 0.64 0.78
7 A' 1333 1333 48.35 2.92 0.62 0.77
8 A' 1103 1103 3.19 5.26 0.50 0.67
9 A' 983 983 11.60 4.42 0.71 0.83
10 A' 591 591 12.30 18.01 0.28 0.43
11 A' 291 291 2.05 2.28 0.44 0.61
12 A" 3203 3203 10.59 25.59 0.75 0.86
13 A" 3166 3166 5.43 77.18 0.75 0.86
14 A" 1575 1575 9.71 23.18 0.75 0.86
15 A" 1324 1324 0.65 7.72 0.75 0.86
16 A" 1078 1078 0.00 7.16 0.75 0.86
17 A" 807 807 6.36 0.60 0.75 0.86
18 A" 266 266 0.03 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14859.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14859.4 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/3-21G*
ABC
0.98047 0.12546 0.11611

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.585 -2.032 0.000
C2 0.614 -1.081 0.000
Br3 0.000 0.796 0.000
H4 1.228 -1.194 0.892
H5 1.228 -1.194 -0.892
H6 -0.231 -3.068 0.000
H7 -1.201 -1.870 0.887
H8 -1.201 -1.870 -0.887

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.53062.88772.18722.18721.09531.09151.0915
C21.53061.97481.08851.08852.16012.16872.1687
Br32.88771.97482.50312.50313.87143.05553.0555
H42.18721.08852.50311.78322.53712.52113.0851
H52.18721.08852.50311.78322.53713.08512.5211
H61.09532.16013.87142.53712.53711.77821.7782
H71.09152.16873.05552.52113.08511.77821.7733
H81.09152.16873.05553.08512.52111.77821.7733

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 110.292 C1 C2 H4 112.148
C1 C2 H5 112.148 C2 C1 H6 109.576
C2 C1 H7 110.481 C2 C1 H8 110.481
Br3 C2 H4 105.947 Br3 C2 H5 105.947
H4 C2 H5 109.996 H6 C1 H7 108.806
H6 C1 H8 108.806 H7 C1 H8 108.650
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability