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

using model chemistry: BLYP/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/cc-pVTZ-PP
 hartrees
Energy at 0K-496.023039
Energy at 298.15K 
HF Energy-496.023039
Nuclear repulsion energy125.510526
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 BLYP/cc-pVTZ-PP
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' 3027 3027 25.39 73.49 0.05 0.10
2 A' 3010 3010 2.54 127.62 0.37 0.54
3 A' 2950 2950 21.12 224.34 0.11 0.20
4 A' 1467 1467 2.07 6.32 0.75 0.85
5 A' 1452 1452 0.73 8.00 0.75 0.86
6 A' 1378 1378 3.69 3.40 0.61 0.76
7 A' 1230 1230 55.20 5.71 0.52 0.69
8 A' 1040 1040 0.06 3.39 0.34 0.51
9 A' 939 939 19.61 4.14 0.72 0.84
10 A' 518 518 16.68 18.98 0.22 0.36
11 A' 270 270 2.55 3.57 0.37 0.54
12 A" 3081 3081 10.76 32.82 0.75 0.86
13 A" 3037 3037 9.29 80.49 0.75 0.86
14 A" 1449 1449 8.68 8.85 0.75 0.86
15 A" 1231 1231 0.29 1.41 0.75 0.86
16 A" 993 993 0.10 3.84 0.75 0.86
17 A" 757 757 3.75 0.15 0.75 0.86
18 A" 247 247 0.00 0.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14036.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14036.7 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 BLYP/cc-pVTZ-PP
ABC
0.99859 0.12077 0.11233

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/cc-pVTZ-PP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.576 -2.069 0.000
C2 0.602 -1.108 0.000
Br3 0.000 0.812 0.000
H4 1.223 -1.196 0.893
H5 1.223 -1.196 -0.893
H6 -0.196 -3.102 0.000
H7 -1.202 -1.936 0.889
H8 -1.202 -1.936 -0.889

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.52032.93842.18992.18991.10041.09521.0952
C21.52032.01211.09121.09122.14812.17512.1751
Br32.93842.01212.51522.51523.91923.12903.1290
H42.18991.09122.51521.78562.53862.53573.0989
H52.18991.09122.51521.78562.53863.09892.5357
H61.10042.14813.91922.53862.53861.77761.7776
H71.09522.17513.12902.53573.09891.77761.7772
H81.09522.17513.12903.09892.53571.77761.7772

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 111.819 C1 C2 H4 112.943
C1 C2 H5 112.943 C2 C1 H6 109.049
C2 C1 H7 111.495 C2 C1 H8 111.495
Br3 C2 H4 104.329 Br3 C2 H5 104.329
H4 C2 H5 109.804 H6 C1 H7 108.113
H6 C1 H8 108.113 H7 C1 H8 108.461
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.255      
2 C -0.166      
3 Br -0.125      
4 H 0.121      
5 H 0.121      
6 H 0.094      
7 H 0.105      
8 H 0.105      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.430 -2.059 0.000 2.103
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.010 -0.955 0.000
y -0.955 -29.968 0.000
z 0.000 0.000 -32.269
Traceless
 xyz
x -0.892 -0.955 0.000
y -0.955 2.172 0.000
z 0.000 0.000 -1.280
Polar
3z2-r2-2.560
x2-y2-2.042
xy-0.955
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.967 -0.105 0.000
y -0.105 8.992 0.000
z 0.000 0.000 5.521


<r2> (average value of r2) Å2
<r2> 102.407
(<r2>)1/2 10.120