return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B2PLYP=FULL/daug-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 B2PLYP=FULL/daug-cc-pVDZ
 hartrees
Energy at 0K-2652.849360
Energy at 298.15K 
HF Energy-2652.695549
Nuclear repulsion energy163.027296
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/daug-cc-pVDZ
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' 3134 3134 22.74 70.18 0.57 0.73
2 A' 3117 3117 5.23 129.45 0.12 0.21
3 A' 3052 3052 19.33 211.46 0.05 0.10
4 A' 1486 1486 1.92 3.22 0.75 0.86
5 A' 1469 1469 0.89 5.24 0.69 0.82
6 A' 1398 1398 5.07 1.63 0.60 0.75
7 A' 1269 1269 52.31 6.77 0.26 0.41
8 A' 1085 1085 0.12 4.73 0.14 0.24
9 A' 977 977 15.20 3.43 0.64 0.78
10 A' 567 567 16.63 22.01 0.17 0.30
11 A' 288 288 1.95 2.97 0.26 0.41
12 A" 3190 3190 7.87 31.60 0.75 0.86
13 A" 3153 3153 8.07 68.10 0.75 0.86
14 A" 1472 1472 9.32 5.62 0.75 0.86
15 A" 1260 1260 0.24 0.84 0.75 0.86
16 A" 1033 1033 0.09 1.26 0.75 0.86
17 A" 770 770 3.13 0.01 0.75 0.86
18 A" 259 259 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14490.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14490.0 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/daug-cc-pVDZ
ABC
0.99949 0.12465 0.11570

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.576 -2.039 0.000
C2 0.601 -1.082 0.000
Br3 0.000 0.799 0.000
H4 1.223 -1.185 0.893
H5 1.223 -1.185 -0.893
H6 -0.199 -3.072 0.000
H7 -1.200 -1.897 0.890
H8 -1.200 -1.897 -0.890

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51712.89542.18272.18271.09991.09601.0960
C21.51711.97461.09341.09342.14482.16832.1683
Br32.89541.97462.49612.49613.87583.08223.0822
H42.18271.09342.49611.78682.52592.52583.0918
H52.18271.09342.49611.78682.52593.09182.5258
H61.09992.14483.87582.52592.52591.78171.7817
H71.09602.16833.08222.52583.09181.78171.7798
H81.09602.16833.08223.09182.52581.78171.7798

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 111.361 C1 C2 H4 112.455
C1 C2 H5 112.455 C2 C1 H6 109.034
C2 C1 H7 111.126 C2 C1 H8 111.126
Br3 C2 H4 105.252 Br3 C2 H5 105.252
H4 C2 H5 109.587 H6 C1 H7 108.456
H6 C1 H8 108.456 H7 C1 H8 108.567
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability