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

using model chemistry: CCD/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 CCD/6-311G**
 hartrees
Energy at 0K-2651.510997
Energy at 298.15K 
HF Energy-2651.040988
Nuclear repulsion energy163.919345
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/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' 3146 3005 26.52      
2 A' 3127 2986 8.12      
3 A' 3067 2929 18.87      
4 A' 1522 1454 1.77      
5 A' 1511 1444 0.94      
6 A' 1446 1381 3.47      
7 A' 1332 1272 55.94      
8 A' 1105 1056 0.06      
9 A' 1003 958 9.12      
10 A' 605 578 10.83      
11 A' 297 284 1.22      
12 A" 3193 3050 15.34      
13 A" 3159 3018 7.57      
14 A" 1512 1444 7.30      
15 A" 1295 1236 0.64      
16 A" 1069 1021 0.57      
17 A" 788 753 3.06      
18 A" 279 266 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 14726.9 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 14065.6 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 CCD/6-311G**
ABC
1.00449 0.12607 0.11695

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.575 -2.032 0.000
C2 0.601 -1.065 0.000
Br3 0.000 0.794 0.000
H4 1.221 -1.183 0.889
H5 1.221 -1.183 -0.889
H6 -0.199 -3.062 0.000
H7 -1.198 -1.889 0.887
H8 -1.198 -1.889 -0.887

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.52192.88342.17652.17651.09681.09351.0935
C21.52191.95361.09061.09062.15102.16832.1683
Br32.88341.95362.48802.48803.86103.06903.0690
H42.17651.09062.48801.77762.51762.52073.0834
H52.17651.09062.48801.77762.51763.08342.5207
H61.09682.15103.86102.51762.51761.77821.7782
H71.09352.16833.06902.52073.08341.77821.7740
H81.09352.16833.06903.08342.52071.77821.7740

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 111.521 C1 C2 H4 111.783
C1 C2 H5 111.783 C2 C1 H6 109.384
C2 C1 H7 110.938 C2 C1 H8 110.938
Br3 C2 H4 106.134 Br3 C2 H5 106.134
H4 C2 H5 109.173 H6 C1 H7 108.553
H6 C1 H8 108.553 H7 C1 H8 108.409
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability