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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-311G*
 hartrees
Energy at 0K-2653.394452
Energy at 298.15K 
HF Energy-2653.394452
Nuclear repulsion energy162.479699
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 B3LYPultrafine/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' 3106 3002 35.91 63.55 0.10 0.18
2 A' 3092 2987 1.10 133.04 0.42 0.59
3 A' 3030 2928 23.76 175.89 0.10 0.18
4 A' 1518 1467 3.36 8.68 0.75 0.86
5 A' 1502 1452 1.55 11.36 0.72 0.84
6 A' 1428 1380 6.30 4.03 0.74 0.85
7 A' 1292 1249 64.30 4.94 0.63 0.77
8 A' 1084 1048 0.29 3.98 0.46 0.63
9 A' 977 944 18.28 4.90 0.72 0.84
10 A' 550 532 18.80 20.12 0.27 0.43
11 A' 284 275 2.47 2.79 0.48 0.65
12 A" 3163 3057 15.67 34.76 0.75 0.86
13 A" 3119 3014 11.33 88.87 0.75 0.86
14 A" 1503 1452 10.85 11.90 0.75 0.86
15 A" 1277 1234 0.90 3.32 0.75 0.86
16 A" 1044 1009 0.44 5.71 0.75 0.86
17 A" 781 754 5.40 0.29 0.75 0.86
18 A" 263 254 0.00 0.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14505.6 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 14016.8 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 B3LYPultrafine/6-311G*
ABC
1.00784 0.12323 0.11452

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.573 -2.050 0.000
C2 0.599 -1.090 0.000
Br3 0.000 0.804 0.000
H4 1.220 -1.189 0.887
H5 1.220 -1.189 -0.887
H6 -0.197 -3.080 0.000
H7 -1.199 -1.918 0.885
H8 -1.199 -1.918 -0.885

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51482.91092.17832.17831.09601.09141.0914
C21.51481.98621.08781.08782.14282.16772.1677
Br32.91091.98622.49932.49933.88843.10333.1033
H42.17831.08782.49931.77412.52422.52673.0859
H52.17831.08782.49931.77412.52423.08592.5267
H61.09602.14283.88842.52422.52421.77011.7701
H71.09142.16773.10332.52673.08591.77011.7691
H81.09142.16773.10333.08592.52671.77011.7691

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 111.789 C1 C2 H4 112.619
C1 C2 H5 112.619 C2 C1 H6 109.273
C2 C1 H7 111.528 C2 C1 H8 111.528
Br3 C2 H4 105.000 Br3 C2 H5 105.000
H4 C2 H5 109.273 H6 C1 H7 108.049
H6 C1 H8 108.049 H7 C1 H8 108.291
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.604      
2 C -0.492      
3 Br -0.081      
4 H 0.253      
5 H 0.253      
6 H 0.214      
7 H 0.228      
8 H 0.228      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.494 -2.182 0.000 2.237
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.169 -1.065 0.000
y -1.065 -30.182 0.000
z 0.000 0.000 -32.438
Traceless
 xyz
x -0.859 -1.065 0.000
y -1.065 2.122 0.000
z 0.000 0.000 -1.263
Polar
3z2-r2-2.526
x2-y2-1.987
xy-1.065
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.912 -0.267 0.000
y -0.267 7.993 0.000
z 0.000 0.000 4.491


<r2> (average value of r2) Å2
<r2> 107.516
(<r2>)1/2 10.369