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All results from a given calculation for C2H5OO (ethylperoxy radical)

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-229.453681
Energy at 298.15K-229.459611
HF Energy-229.453681
Nuclear repulsion energy123.998166
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 B3PW91/6-31G**
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' 3155 3024 13.78      
2 A' 3078 2950 14.84      
3 A' 3070 2942 9.76      
4 A' 1514 1451 5.47      
5 A' 1502 1439 0.95      
6 A' 1425 1366 20.75      
7 A' 1377 1320 10.62      
8 A' 1241 1189 14.68      
9 A' 1145 1098 7.25      
10 A' 1038 995 16.00      
11 A' 857 821 1.78      
12 A' 509 488 9.92      
13 A' 306 293 1.33      
14 A" 3163 3031 25.35      
15 A" 3133 3002 6.95      
16 A" 1492 1430 6.89      
17 A" 1276 1223 0.07      
18 A" 1150 1103 4.76      
19 A" 803 769 1.92      
20 A" 224 214 0.34      
21 A" 73 70 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 15765.0 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 15109.1 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 B3PW91/6-31G**
ABC
1.12016 0.14766 0.13723

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.492 0.915 0.000
C2 0.000 0.673 0.000
O3 -0.209 -0.767 0.000
O4 -1.488 -1.062 0.000
H5 1.689 1.991 0.000
H6 1.960 0.481 0.887
H7 1.960 0.481 -0.887
H8 -0.494 1.074 -0.890
H9 -0.494 1.074 0.890

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51132.39213.57541.09381.09331.09332.18162.1816
C21.51131.45472.28472.14282.16012.16011.09421.0942
O32.39211.45471.31213.34812.65542.65542.06462.0646
O43.57542.28471.31214.40573.88003.88002.51802.5180
H51.09382.14283.34814.40571.77211.77212.52962.5296
H61.09332.16012.65543.88001.77211.77493.08752.5244
H71.09332.16012.65543.88001.77211.77492.52443.0875
H82.18161.09422.06462.51802.52963.08752.52441.7804
H92.18161.09422.06462.51802.52962.52443.08751.7804

picture of ethylperoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.501 C1 C2 H8 112.735
C1 C2 H9 112.735 C2 C1 H5 109.645
C2 C1 H6 111.051 C2 C1 H7 111.051
C2 O3 O4 111.232 O3 C2 H8 107.350
O3 C2 H9 107.350 H5 C1 H6 108.239
H5 C1 H7 108.239 H6 C1 H7 108.528
H8 C2 H9 108.883
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.426      
2 C 0.003      
3 O -0.177      
4 O -0.169      
5 H 0.148      
6 H 0.157      
7 H 0.157      
8 H 0.153      
9 H 0.153      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.610 2.442 0.000 2.925
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.254 -1.166 0.000
y -1.166 -24.790 0.000
z 0.000 0.000 -22.884
Traceless
 xyz
x -1.417 -1.166 0.000
y -1.166 -0.721 0.000
z 0.000 0.000 2.138
Polar
3z2-r24.277
x2-y2-0.464
xy-1.166
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.381 0.962 0.000
y 0.962 4.505 0.000
z 0.000 0.000 3.708


<r2> (average value of r2) Å2
<r2> 88.967
(<r2>)1/2 9.432