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

using model chemistry: PBEPBE/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/daug-cc-pVDZ
 hartrees
Energy at 0K-2652.860640
Energy at 298.15K 
HF Energy-2652.860640
Nuclear repulsion energy162.340939
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 PBEPBE/daug-cc-pVDZ
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' 3050 3050 18.35 80.86 0.65 0.79
2 A' 3027 3027 6.69 138.32 0.09 0.17
3 A' 2968 2968 18.25 249.84 0.06 0.11
4 A' 1422 1422 2.34 3.80 0.75 0.86
5 A' 1404 1404 0.86 4.65 0.74 0.85
6 A' 1333 1333 6.91 3.30 0.53 0.70
7 A' 1206 1206 46.81 6.93 0.25 0.41
8 A' 1054 1054 0.81 3.43 0.17 0.30
9 A' 940 940 18.45 4.12 0.46 0.63
10 A' 547 547 15.30 19.44 0.16 0.28
11 A' 278 278 2.35 3.03 0.25 0.40
12 A" 3101 3101 8.92 25.96 0.75 0.86
13 A" 3069 3069 5.63 83.14 0.75 0.86
14 A" 1404 1404 10.16 5.86 0.75 0.86
15 A" 1206 1206 0.32 0.70 0.75 0.86
16 A" 986 986 0.02 1.46 0.75 0.86
17 A" 742 742 3.88 0.01 0.75 0.86
18 A" 249 249 0.00 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13992.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13992.1 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 PBEPBE/daug-cc-pVDZ
ABC
0.99563 0.12353 0.11476

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.575 -2.047 0.000
C2 0.600 -1.088 0.000
Br3 0.000 0.802 0.000
H4 1.228 -1.187 0.900
H5 1.228 -1.187 -0.900
H6 -0.192 -3.087 0.000
H7 -1.206 -1.911 0.896
H8 -1.206 -1.911 -0.896

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51682.90662.19152.19151.10831.10391.1039
C21.51681.98311.10201.10202.15012.17712.1771
Br32.90661.98312.50532.50533.89383.10113.1011
H42.19151.10202.50531.79952.53702.53933.1102
H52.19151.10202.50531.79952.53703.11022.5393
H61.10832.15013.89382.53702.53701.79231.7923
H71.10392.17713.10112.53933.11021.79231.7923
H81.10392.17713.10113.11022.53931.79231.7923

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 111.599 C1 C2 H4 112.646
C1 C2 H5 112.646 C2 C1 H6 108.985
C2 C1 H7 111.373 C2 C1 H8 111.373
Br3 C2 H4 104.972 Br3 C2 H5 104.972
H4 C2 H5 109.463 H6 C1 H7 108.234
H6 C1 H8 108.234 H7 C1 H8 108.543
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.838      
2 C 0.434      
3 Br 0.252      
4 H -0.408      
5 H -0.408      
6 H -0.368      
7 H -0.170      
8 H -0.170      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.441 -2.146 0.000 2.191
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.342 -0.979 0.000
y -0.979 -30.293 0.000
z 0.000 0.000 -32.618
Traceless
 xyz
x -0.887 -0.979 0.000
y -0.979 2.187 0.000
z 0.000 0.000 -1.300
Polar
3z2-r2-2.601
x2-y2-2.049
xy-0.979
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.114 0.014 0.000
y 0.014 9.640 0.000
z 0.000 0.000 6.680


<r2> (average value of r2) Å2
<r2> 107.578
(<r2>)1/2 10.372