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

using model chemistry: B97D3/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/cc-pVTZ
 hartrees
Energy at 0K-2654.730439
Energy at 298.15K 
HF Energy-2654.730439
Nuclear repulsion energy162.412215
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 B97D3/cc-pVTZ
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' 3055 3012 32.00 63.64 0.26 0.41
2 A' 3041 2998 0.26 142.00 0.26 0.41
3 A' 2978 2936 22.92 216.26 0.08 0.15
4 A' 1473 1452 1.99 6.01 0.75 0.86
5 A' 1459 1438 0.79 7.86 0.75 0.86
6 A' 1384 1364 3.74 3.20 0.63 0.77
7 A' 1244 1226 53.79 5.06 0.54 0.70
8 A' 1056 1041 0.14 3.38 0.30 0.47
9 A' 951 938 19.33 4.02 0.72 0.83
10 A' 528 521 17.65 18.52 0.22 0.37
11 A' 279 275 2.73 3.14 0.39 0.56
12 A" 3111 3068 13.58 28.78 0.75 0.86
13 A" 3071 3028 8.81 84.03 0.75 0.86
14 A" 1455 1435 8.43 8.27 0.75 0.86
15 A" 1240 1223 0.42 1.43 0.75 0.86
16 A" 1009 995 0.08 3.56 0.75 0.86
17 A" 763 752 4.00 0.10 0.75 0.86
18 A" 253 250 0.01 0.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14173.4 cm-1
Scaled (by 0.986) Zero Point Vibrational Energy (zpe) 13975.0 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 B97D3/cc-pVTZ
ABC
1.00393 0.12329 0.11456

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.574 -2.048 0.000
C2 0.600 -1.093 0.000
Br3 0.000 0.804 0.000
H4 1.221 -1.186 0.891
H5 1.221 -1.186 -0.891
H6 -0.198 -3.080 0.000
H7 -1.198 -1.911 0.887
H8 -1.198 -1.911 -0.887

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51372.90932.18172.18171.09781.09301.0930
C21.51371.98961.08971.08972.14052.16552.1655
Br32.90931.98962.49852.49853.88823.09733.0973
H42.18171.08972.49851.78182.52812.52533.0884
H52.18171.08972.49851.78182.52813.08842.5253
H61.09782.14053.88822.52812.52811.77551.7755
H71.09302.16553.09732.52533.08841.77551.7739
H81.09302.16553.09733.08842.52531.77551.7739

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 111.564 C1 C2 H4 112.845
C1 C2 H5 112.845 C2 C1 H6 109.058
C2 C1 H7 111.327 C2 C1 H8 111.327
Br3 C2 H4 104.647 Br3 C2 H5 104.647
H4 C2 H5 109.678 H6 C1 H7 108.277
H6 C1 H8 108.277 H7 C1 H8 108.481
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.242      
2 C -0.135      
3 Br -0.148      
4 H 0.115      
5 H 0.115      
6 H 0.090      
7 H 0.103      
8 H 0.103      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.453 -2.185 0.000 2.231
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.870 -0.947 0.000
y -0.947 -29.971 0.000
z 0.000 0.000 -32.149
Traceless
 xyz
x -0.810 -0.947 0.000
y -0.947 2.039 0.000
z 0.000 0.000 -1.229
Polar
3z2-r2-2.457
x2-y2-1.899
xy-0.947
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.799 -0.136 0.000
y -0.136 8.822 0.000
z 0.000 0.000 5.329


<r2> (average value of r2) Å2
<r2> 107.314
(<r2>)1/2 10.359