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

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/cc-pVTZ-PP
 hartrees
Energy at 0K-495.676369
Energy at 298.15K 
HF Energy-495.465707
Nuclear repulsion energy127.737811
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=FULLultrafine/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' 3130 3130 26.31 61.71 0.26 0.41
2 A' 3116 3116 0.39 128.30 0.27 0.42
3 A' 3057 3057 18.56 181.74 0.06 0.12
4 A' 1516 1516 2.13 5.16 0.75 0.86
5 A' 1503 1503 1.21 7.87 0.74 0.85
6 A' 1426 1426 4.52 1.68 0.71 0.83
7 A' 1290 1290 52.33 4.30 0.54 0.70
8 A' 1090 1090 0.03 3.62 0.24 0.38
9 A' 986 986 14.80 3.89 0.74 0.85
10 A' 576 576 14.50 18.44 0.22 0.36
11 A' 287 287 1.72 2.61 0.38 0.55
12 A" 3181 3181 8.94 27.57 0.75 0.86
13 A" 3143 3143 7.11 77.21 0.75 0.86
14 A" 1502 1502 9.23 7.90 0.75 0.86
15 A" 1279 1279 0.32 1.60 0.75 0.86
16 A" 1043 1043 0.16 3.15 0.75 0.86
17 A" 782 782 3.56 0.08 0.75 0.86
18 A" 265 265 0.01 0.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14585.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14585.4 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=FULLultrafine/cc-pVTZ-PP
ABC
1.01368 0.12606 0.11700

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/cc-pVTZ-PP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.572 -2.028 0.000
C2 0.598 -1.075 0.000
Br3 0.000 0.794 0.000
H4 1.215 -1.176 0.884
H5 1.215 -1.176 -0.884
H6 -0.202 -3.054 0.000
H7 -1.192 -1.888 0.881
H8 -1.192 -1.888 -0.881

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.50982.88022.16892.16891.09041.08651.0865
C21.50981.96231.08311.08312.13502.15482.1548
Br32.88021.96232.47802.47803.85373.06483.0648
H42.16891.08312.47801.76852.51372.51063.0692
H52.16891.08312.47801.76852.51373.06922.5106
H61.09042.13503.85372.51372.51371.76541.7654
H71.08652.15483.06482.51063.06921.76541.7625
H81.08652.15483.06483.06922.51061.76541.7625

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 111.434 C1 C2 H4 112.502
C1 C2 H5 112.502 C2 C1 H6 109.328
C2 C1 H7 111.136 C2 C1 H8 111.136
Br3 C2 H4 105.228 Br3 C2 H5 105.228
H4 C2 H5 109.456 H6 C1 H7 108.377
H6 C1 H8 108.377 H7 C1 H8 108.403
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.282      
2 C -0.170      
3 Br -0.141      
4 H 0.132      
5 H 0.132      
6 H 0.103      
7 H 0.113      
8 H 0.113      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.703 -0.151 -0.000
y -0.151 8.371 -0.001
z -0.000 -0.001 5.291


<r2> (average value of r2) Å2
<r2> 99.183
(<r2>)1/2 9.959