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

using model chemistry: BLYP/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 BLYP/daug-cc-pVDZ
 hartrees
Energy at 0K-2653.334683
Energy at 298.15K 
HF Energy-2653.334683
Nuclear repulsion energy160.507232
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/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' 3029 3029 27.54 74.17 0.20 0.34
2 A' 3017 3017 0.04 139.93 0.25 0.40
3 A' 2951 2951 21.15 258.44 0.09 0.16
4 A' 1435 1435 1.99 3.78 0.75 0.86
5 A' 1416 1416 0.57 5.06 0.73 0.84
6 A' 1346 1346 4.39 3.18 0.51 0.68
7 A' 1208 1208 54.18 8.94 0.23 0.38
8 A' 1036 1036 0.43 3.66 0.15 0.26
9 A' 933 933 19.82 4.34 0.56 0.72
10 A' 515 515 18.82 22.76 0.17 0.29
11 A' 272 272 2.79 3.95 0.24 0.39
12 A" 3091 3091 8.92 36.97 0.75 0.86
13 A" 3049 3049 9.41 72.60 0.75 0.86
14 A" 1417 1417 8.99 6.17 0.75 0.86
15 A" 1211 1211 0.24 0.64 0.75 0.86
16 A" 985 985 0.04 1.51 0.75 0.86
17 A" 746 746 3.31 0.01 0.75 0.86
18 A" 245 245 0.00 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13949.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13949.6 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/daug-cc-pVDZ
ABC
0.98710 0.12023 0.11180

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.579 -2.072 0.000
C2 0.604 -1.111 0.000
Br3 0.000 0.814 0.000
H4 1.229 -1.203 0.901
H5 1.229 -1.203 -0.901
H6 -0.193 -3.111 0.000
H7 -1.208 -1.938 0.896
H8 -1.208 -1.938 -0.896

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.52532.94412.19962.19961.10841.10311.1031
C21.52532.01741.10001.10002.15372.18482.1848
Br32.94412.01742.52812.52813.93013.13643.1364
H42.19961.10002.52811.80102.54472.54583.1161
H52.19961.10002.52811.80102.54473.11612.5458
H61.10842.15373.93012.54472.54471.79181.7918
H71.10312.18483.13642.54583.11611.79181.7928
H81.10312.18483.13643.11612.54581.79181.7928

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 111.658 C1 C2 H4 112.825
C1 C2 H5 112.825 C2 C1 H6 108.693
C2 C1 H7 111.437 C2 C1 H8 111.437
Br3 C2 H4 104.501 Br3 C2 H5 104.501
H4 C2 H5 109.901 H6 C1 H7 108.235
H6 C1 H8 108.235 H7 C1 H8 108.701
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.348      
2 C 0.956      
3 Br 0.194      
4 H -0.617      
5 H -0.617      
6 H -0.557      
7 H -0.353      
8 H -0.353      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.450 -2.231 0.000 2.276
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.611 -0.992 0.000
y -0.992 -30.553 0.000
z 0.000 0.000 -32.889
Traceless
 xyz
x -0.890 -0.992 0.000
y -0.992 2.197 0.000
z 0.000 0.000 -1.307
Polar
3z2-r2-2.614
x2-y2-2.058
xy-0.992
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.207 -0.005 0.000
y -0.005 9.917 0.000
z 0.000 0.000 6.774


<r2> (average value of r2) Å2
<r2> 109.866
(<r2>)1/2 10.482