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

using model chemistry: CCD/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 CCD/cc-pVDZ
 hartrees
Energy at 0K-2651.500368
Energy at 298.15K 
HF Energy-2651.040215
Nuclear repulsion energy163.360628
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 CCD/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3159 3022 19.49      
2 A' 3127 2991 12.60      
3 A' 3072 2939 19.09      
4 A' 1500 1435 1.59      
5 A' 1492 1427 0.69      
6 A' 1420 1358 2.22      
7 A' 1302 1245 52.68      
8 A' 1099 1051 0.06      
9 A' 997 954 9.51      
10 A' 601 575 10.82      
11 A' 294 281 1.31      
12 A" 3198 3059 15.47      
13 A" 3172 3035 4.20      
14 A" 1488 1423 7.00      
15 A" 1275 1219 0.45      
16 A" 1049 1003 0.23      
17 A" 776 742 3.01      
18 A" 272 260 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 14644.9 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 14010.8 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 CCD/cc-pVDZ
ABC
0.99516 0.12539 0.11633

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.577 -2.036 0.000
C2 0.601 -1.068 0.000
Br3 0.000 0.796 0.000
H4 1.231 -1.184 0.896
H5 1.231 -1.184 -0.896
H6 -0.198 -3.076 0.000
H7 -1.206 -1.893 0.895
H8 -1.206 -1.893 -0.895

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.52452.89032.18972.18971.10591.10301.1030
C21.52451.95861.10091.10092.16072.17822.1782
Br32.89031.95862.49712.49713.87653.07933.0793
H42.18971.10092.49711.79182.53452.53713.1053
H52.18971.10092.49711.79182.53453.10532.5371
H61.10592.16073.87652.53452.53451.79281.7928
H71.10302.17823.07932.53713.10531.79281.7893
H81.10302.17823.07933.10532.53711.79281.7893

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 111.544 C1 C2 H4 112.023
C1 C2 H5 112.023 C2 C1 H6 109.425
C2 C1 H7 110.967 C2 C1 H8 110.967
Br3 C2 H4 105.980 Br3 C2 H5 105.980
H4 C2 H5 108.933 H6 C1 H7 108.504
H6 C1 H8 108.504 H7 C1 H8 108.403
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability