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

using model chemistry: ROHF/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 ROHF/6-31G
 hartrees
Energy at 0K-228.150606
Energy at 298.15K-228.156690
HF Energy-228.150606
Nuclear repulsion energy122.677023
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 ROHF/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' 3283 2939 31.16      
2 A' 3247 2907 14.88      
3 A' 3208 2872 17.93      
4 A' 1681 1505 5.61      
5 A' 1656 1483 5.96      
6 A' 1587 1421 13.05      
7 A' 1547 1385 15.40      
8 A' 1254 1123 21.14      
9 A' 1122 1004 44.12      
10 A' 998 893 35.04      
11 A' 871 780 6.16      
12 A' 516 462 6.24      
13 A' 318 284 1.05      
14 A" 3316 2968 53.49      
15 A" 3288 2944 0.44      
16 A" 1641 1469 7.13      
17 A" 1414 1266 0.11      
18 A" 1295 1160 8.53      
19 A" 911 816 0.84      
20 A" 243 218 1.08      
21 A" 94 84 0.71      

Unscaled Zero Point Vibrational Energy (zpe) 16744.4 cm-1
Scaled (by 0.8953) Zero Point Vibrational Energy (zpe) 14991.3 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 ROHF/6-31G
ABC
1.11097 0.14460 0.13430

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.495 0.923 0.000
C2 0.000 0.690 0.000
O3 -0.185 -0.756 0.000
O4 -1.516 -1.095 0.000
H5 1.702 1.987 0.000
H6 1.950 0.484 0.877
H7 1.950 0.484 -0.877
H8 -0.479 1.088 -0.881
H9 -0.479 1.088 0.881

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51292.37583.62491.08361.08171.08172.16792.1679
C21.51291.45762.34182.14052.14852.14851.07951.0795
O32.37581.45761.37323.33012.62132.62132.06542.0654
O43.62492.34181.37324.45633.90933.90932.57302.5730
H51.08362.14053.33014.45631.75751.75752.51852.5185
H61.08172.14852.62133.90931.75751.75473.05952.5035
H71.08172.14852.62133.90931.75751.75472.50353.0595
H82.16791.07952.06542.57302.51853.05952.50351.7626
H92.16791.07952.06542.57302.51852.50353.05951.7626

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 106.204 C1 C2 H8 112.414
C1 C2 H9 112.414 C2 C1 H5 109.946
C2 C1 H6 110.704 C2 C1 H7 110.704
C2 O3 O4 111.596 O3 C2 H8 108.063
O3 C2 H9 108.063 H5 C1 H6 108.511
H5 C1 H7 108.511 H6 C1 H7 108.397
H8 C2 H9 109.454
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.476      
2 C 0.023      
3 O -0.419      
4 O -0.032      
5 H 0.166      
6 H 0.186      
7 H 0.186      
8 H 0.183      
9 H 0.183      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.938 2.832 0.000 2.983
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.242 -0.635 0.000
y -0.635 -25.763 0.000
z 0.000 0.000 -23.444
Traceless
 xyz
x -0.638 -0.635 0.000
y -0.635 -1.420 0.000
z 0.000 0.000 2.058
Polar
3z2-r24.117
x2-y20.521
xy-0.635
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 90.555
(<r2>)1/2 9.516