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

using model chemistry: B1B95/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B1B95/STO-3G
 hartrees
Energy at 0K-226.489466
Energy at 298.15K-226.495138
HF Energy-226.489466
Nuclear repulsion energy120.890334
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 B1B95/STO-3G
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' 3528 3115 0.05      
2 A' 3357 2964 0.09      
3 A' 3333 2943 1.33      
4 A' 1684 1487 4.45      
5 A' 1646 1453 1.03      
6 A' 1570 1386 2.66      
7 A' 1465 1293 12.13      
8 A' 1337 1181 21.15      
9 A' 1225 1082 2.54      
10 A' 1119 988 1.47      
11 A' 944 833 2.89      
12 A' 493 435 2.69      
13 A' 291 257 0.34      
14 A" 3534 3120 0.04      
15 A" 3448 3045 2.36      
16 A" 1672 1476 4.19      
17 A" 1357 1198 0.10      
18 A" 1180 1042 5.61      
19 A" 854 754 2.27      
20 A" 197 174 0.21      
21 A" 54 48 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 17142.3 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 15136.7 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 B1B95/STO-3G
ABC
1.05686 0.14088 0.13053

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.514 0.958 0.000
C2 0.000 0.683 0.000
O3 -0.192 -0.813 0.000
O4 -1.530 -1.081 0.000
H5 1.695 2.041 0.000
H6 1.983 0.524 0.891
H7 1.983 0.524 -0.891
H8 -0.486 1.109 -0.899
H9 -0.486 1.109 0.899

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.53912.45883.66461.09731.09691.09692.19762.1976
C21.53911.50732.33522.17182.17992.17991.10691.1069
O32.45881.50731.36543.42042.70352.70352.14172.1417
O43.66462.33521.36544.48863.96403.96402.58792.5879
H51.09732.17183.42044.48861.78281.78282.53572.5357
H61.09692.17992.70353.96401.78281.78293.10492.5370
H71.09692.17992.70353.96401.78281.78292.53703.1049
H82.19761.10692.14172.58792.53573.10492.53701.7974
H92.19761.10692.14172.58792.53572.53703.10491.7974

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 107.623 C1 C2 H8 111.256
C1 C2 H9 111.256 C2 C1 H5 109.793
C2 C1 H6 110.453 C2 C1 H7 110.453
C2 O3 O4 108.657 O3 C2 H8 109.052
O3 C2 H9 109.052 H5 C1 H6 108.687
H5 C1 H7 108.687 H6 C1 H7 108.723
H8 C2 H9 108.556
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.234      
2 C -0.055      
3 O -0.076      
4 O -0.081      
5 H 0.088      
6 H 0.090      
7 H 0.090      
8 H 0.088      
9 H 0.088      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.885 1.731 0.000 1.944
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.934 -0.720 0.000
y -0.720 -22.697 0.000
z 0.000 0.000 -21.139
Traceless
 xyz
x -1.016 -0.720 0.000
y -0.720 -0.661 0.000
z 0.000 0.000 1.677
Polar
3z2-r23.354
x2-y2-0.237
xy-0.720
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.979 0.787 0.000
y 0.787 2.497 0.000
z 0.000 0.000 1.785


<r2> (average value of r2) Å2
<r2> 91.213
(<r2>)1/2 9.551