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

using model chemistry: B2PLYP=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULL/6-31G*
 hartrees
Energy at 0K-2650.349187
Energy at 298.15K 
HF Energy-2650.213797
Nuclear repulsion energy163.274799
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 B2PLYP=FULL/6-31G*
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' 3163 3000 24.28      
2 A' 3148 2986 3.70      
3 A' 3085 2925 17.76      
4 A' 1549 1469 2.29      
5 A' 1536 1456 0.92      
6 A' 1459 1384 4.13      
7 A' 1313 1245 62.99      
8 A' 1105 1048 0.20      
9 A' 997 946 13.31      
10 A' 570 541 16.62      
11 A' 292 276 2.34      
12 A" 3220 3053 10.83      
13 A" 3182 3018 7.43      
14 A" 1536 1456 8.01      
15 A" 1298 1231 0.44      
16 A" 1056 1001 0.11      
17 A" 787 746 4.00      
18 A" 268 254 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 14781.0 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 14018.3 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 B2PLYP=FULL/6-31G*
ABC
1.00004 0.12511 0.11605

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.576 -2.034 0.000
C2 0.603 -1.083 0.000
Br3 0.000 0.797 0.000
H4 1.222 -1.184 0.889
H5 1.222 -1.184 -0.889
H6 -0.210 -3.067 0.000
H7 -1.198 -1.888 0.885
H8 -1.198 -1.888 -0.885

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51552.88982.17922.17921.09541.09161.0916
C21.51551.97451.08831.08832.14422.16242.1624
Br32.88981.97452.49232.49233.86993.07093.0709
H42.17921.08832.49231.77832.52722.52063.0825
H52.17921.08832.49231.77832.52723.08252.5206
H61.09542.14423.86992.52722.52721.77461.7746
H71.09162.16243.07092.52063.08251.77461.7706
H81.09162.16243.07093.08252.52061.77461.7706

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 111.113 C1 C2 H4 112.599
C1 C2 H5 112.599 C2 C1 H6 109.366
C2 C1 H7 111.036 C2 C1 H8 111.036
Br3 C2 H4 105.225 Br3 C2 H5 105.225
H4 C2 H5 109.576 H6 C1 H7 108.468
H6 C1 H8 108.468 H7 C1 H8 108.393
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability