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

using model chemistry: CCD/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-2651.757813
Energy at 298.15K 
HF Energy-2651.097985
Nuclear repulsion energy164.812465
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/Def2TZVPP
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' 3146 3146 23.79      
2 A' 3131 3131 3.05      
3 A' 3068 3068 16.91      
4 A' 1519 1519 1.95      
5 A' 1508 1508 1.17      
6 A' 1437 1437 3.92      
7 A' 1313 1313 46.30      
8 A' 1100 1100 0.07      
9 A' 999 999 10.73      
10 A' 611 611 10.95      
11 A' 294 294 1.21      
12 A" 3198 3198 7.94      
13 A" 3159 3159 7.24      
14 A" 1508 1508 8.51      
15 A" 1289 1289 0.30      
16 A" 1059 1059 0.21      
17 A" 781 781 2.84      
18 A" 264 264 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 14692.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14692.1 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/Def2TZVPP
ABC
1.01201 0.12757 0.11829

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.573 -2.020 0.000
C2 0.599 -1.060 0.000
Br3 0.000 0.789 0.000
H4 1.217 -1.170 0.884
H5 1.217 -1.170 -0.884
H6 -0.203 -3.046 0.000
H7 -1.193 -1.876 0.882
H8 -1.193 -1.876 -0.882

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51452.86652.17002.17001.09121.08821.0882
C21.51451.94381.08451.08452.14182.15782.1578
Br32.86651.94382.47032.47033.84063.05053.0505
H42.17001.08452.47031.76802.51372.51203.0709
H52.17001.08452.47031.76802.51373.07092.5120
H61.09122.14183.84062.51372.51371.76881.7688
H71.08822.15783.05052.51203.07091.76881.7649
H81.08822.15783.05053.07092.51201.76881.7649

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 112.156
C1 C2 H5 112.156 C2 C1 H6 109.489
C2 C1 H7 110.946 C2 C1 H8 110.946
Br3 C2 H4 105.795 Br3 C2 H5 105.795
H4 C2 H5 109.192 H6 C1 H7 108.503
H6 C1 H8 108.503 H7 C1 H8 108.384
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability