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

using model chemistry: CCD/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 CCD/6-31G*
 hartrees
Energy at 0K-2648.948934
Energy at 298.15K-2648.957222
HF Energy-2648.538654
Nuclear repulsion energy163.369539
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/6-31G*
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 2994 20.48      
2 A' 3145 2976 6.27      
3 A' 3082 2917 16.14      
4 A' 1551 1468 2.80      
5 A' 1543 1461 1.14      
6 A' 1470 1391 5.58      
7 A' 1331 1260 53.67      
8 A' 1118 1058 0.26      
9 A' 1011 957 10.59      
10 A' 590 559 12.83      
11 A' 298 282 1.85      
12 A" 3214 3042 10.34      
13 A" 3180 3010 6.85      
14 A" 1540 1457 8.30      
15 A" 1307 1237 0.44      
16 A" 1070 1013 0.14      
17 A" 792 750 3.75      
18 A" 271 257 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 14837.9 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 14044.0 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/6-31G*
ABC
0.99600 0.12544 0.11631

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.577 -2.036 0.000
C2 0.604 -1.081 0.000
Br3 0.000 0.798 0.000
H4 1.224 -1.188 0.891
H5 1.224 -1.188 -0.891
H6 -0.211 -3.071 0.000
H7 -1.199 -1.886 0.888
H8 -1.199 -1.886 -0.888

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51882.89202.18152.18151.09821.09471.0947
C21.51881.97331.09161.09162.15062.16532.1653
Br32.89201.97332.49772.49773.87483.07103.0710
H42.18151.09162.49771.78302.52982.52223.0869
H52.18151.09162.49771.78302.52983.08692.5222
H61.09822.15063.87482.52982.52981.78051.7805
H71.09472.16533.07102.52223.08691.78051.7763
H81.09472.16533.07103.08692.52221.78051.7763

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 111.152 C1 C2 H4 112.346
C1 C2 H5 112.346 C2 C1 H6 109.475
C2 C1 H7 110.846 C2 C1 H8 110.846
Br3 C2 H4 105.527 Br3 C2 H5 105.527
H4 C2 H5 109.510 H6 C1 H7 108.577
H6 C1 H8 108.577 H7 C1 H8 108.457
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability