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

using model chemistry: CCSD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD/6-311G*
 hartrees
Energy at 0K-2651.475462
Energy at 298.15K 
HF Energy-2651.033470
Nuclear repulsion energy163.573368
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 CCSD/6-311G*
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' 3124 2978 29.05      
2 A' 3107 2963 6.31      
3 A' 3047 2906 20.25      
4 A' 1529 1458 3.49      
5 A' 1520 1449 1.58      
6 A' 1452 1385 7.08      
7 A' 1329 1268 54.44      
8 A' 1106 1054 0.32      
9 A' 1001 954 11.65      
10 A' 590 563 12.94      
11 A' 296 282 1.50      
12 A" 3173 3026 14.82      
13 A" 3138 2992 8.52      
14 A" 1519 1448 10.17      
15 A" 1296 1235 0.88      
16 A" 1073 1023 0.61      
17 A" 787 751 4.46      
18 A" 274 261 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 14680.2 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 13997.6 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 CCSD/6-311G*
ABC
1.00174 0.12555 0.11647

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.576 -2.034 0.000
C2 0.601 -1.071 0.000
Br3 0.000 0.796 0.000
H4 1.224 -1.185 0.889
H5 1.224 -1.185 -0.889
H6 -0.202 -3.066 0.000
H7 -1.200 -1.893 0.887
H8 -1.200 -1.893 -0.887

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.52042.88762.17942.17941.09751.09421.0942
C21.52041.96151.09141.09142.15042.16972.1697
Br32.88761.96152.49202.49203.86703.07503.0750
H42.17941.09142.49201.77852.52262.52553.0876
H52.17941.09142.49201.77852.52263.08762.5255
H61.09752.15043.86702.52262.52261.77751.7775
H71.09422.16973.07502.52553.08761.77751.7741
H81.09422.16973.07503.08762.52551.77751.7741

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 111.428 C1 C2 H4 112.076
C1 C2 H5 112.076 C2 C1 H6 109.390
C2 C1 H7 111.124 C2 C1 H8 111.124
Br3 C2 H4 105.880 Br3 C2 H5 105.880
H4 C2 H5 109.132 H6 C1 H7 108.395
H6 C1 H8 108.395 H7 C1 H8 108.331
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability