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

using model chemistry: CCSD/TZVP

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/TZVP
 hartrees
Energy at 0K-2651.652037
Energy at 298.15K 
HF Energy-2651.089605
Nuclear repulsion energy163.702123
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/TZVP
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' 3149 3005 33.24      
2 A' 3136 2993 1.40      
3 A' 3070 2930 20.35      
4 A' 1521 1452 1.78      
5 A' 1514 1445 0.74      
6 A' 1453 1387 2.70      
7 A' 1329 1269 63.50      
8 A' 1104 1054 0.01      
9 A' 998 952 9.51      
10 A' 588 561 14.00      
11 A' 293 279 1.46      
12 A" 3206 3060 11.65      
13 A" 3162 3018 10.24      
14 A" 1511 1442 7.10      
15 A" 1292 1233 0.43      
16 A" 1062 1014 0.53      
17 A" 789 753 2.11      
18 A" 274 262 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 14724.9 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 14053.5 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/TZVP
ABC
1.00832 0.12557 0.11655

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.574 -2.033 0.000
C2 0.600 -1.074 0.000
Br3 0.000 0.796 0.000
H4 1.218 -1.184 0.887
H5 1.218 -1.184 -0.887
H6 -0.199 -3.060 0.000
H7 -1.196 -1.892 0.884
H8 -1.196 -1.892 -0.884

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51562.88662.17192.17191.09341.09011.0901
C21.51561.96381.08641.08642.14052.16182.1618
Br32.88661.96382.48782.48783.86113.07153.0715
H42.17191.08642.48781.77352.51242.51483.0758
H52.17191.08642.48781.77352.51243.07582.5148
H61.09342.14053.86112.51242.51241.77221.7722
H71.09012.16183.07152.51483.07581.77221.7685
H81.09012.16183.07153.07582.51481.77221.7685

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 111.472 C1 C2 H4 112.113
C1 C2 H5 112.113 C2 C1 H6 109.188
C2 C1 H7 111.067 C2 C1 H8 111.067
Br3 C2 H4 105.668 Br3 C2 H5 105.668
H4 C2 H5 109.418 H6 C1 H7 108.512
H6 C1 H8 108.512 H7 C1 H8 108.424
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability