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

using model chemistry: MP2/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-228.554640
Energy at 298.15K-228.560574
HF Energy-228.148275
Nuclear repulsion energy121.007101
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 MP2/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3164 3027 17.59      
2 A' 3107 2972 12.76      
3 A' 3078 2945 10.73      
4 A' 1581 1512 3.45      
5 A' 1571 1504 4.98      
6 A' 1494 1429 9.43      
7 A' 1431 1370 4.11      
8 A' 1291 1235 170.80      
9 A' 1167 1117 5.05      
10 A' 1043 998 13.19      
11 A' 819 784 7.21      
12 A' 489 468 9.63      
13 A' 301 288 1.09      
14 A" 3187 3049 36.69      
15 A" 3166 3029 0.92      
16 A" 1560 1492 6.89      
17 A" 1318 1261 0.14      
18 A" 1186 1135 5.08      
19 A" 848 811 1.22      
20 A" 232 222 0.72      
21 A" 66 63 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 16049.1 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 15355.8 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 MP2/6-31G
ABC
1.06143 0.14112 0.13078

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.508 0.943 0.000
C2 0.000 0.715 0.000
O3 -0.191 -0.784 0.000
O4 -1.522 -1.112 0.000
H5 1.720 2.021 0.000
H6 1.966 0.497 0.891
H7 1.966 0.497 -0.891
H8 -0.495 1.103 -0.897
H9 -0.495 1.103 0.897

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.52532.42333.66141.09861.09641.09642.20092.2009
C21.52531.51122.37752.15972.16912.16911.09561.0956
O32.42331.51121.37073.39452.66242.66242.11162.1116
O43.66142.37751.37074.50833.94303.94302.60062.6006
H51.09862.15973.39454.50831.78251.78252.56002.5600
H61.09642.16912.66243.94301.78251.78203.10162.5347
H71.09642.16912.66243.94301.78251.78202.53473.1016
H82.20091.09562.11162.60062.56003.10162.53471.7932
H92.20091.09562.11162.60062.56002.53473.10161.7932

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 105.887 C1 C2 H8 113.205
C1 C2 H9 113.205 C2 C1 H5 109.720
C2 C1 H6 110.587 C2 C1 H7 110.587
C2 O3 O4 111.081 O3 C2 H8 107.126
O3 C2 H9 107.126 H5 C1 H6 108.595
H5 C1 H7 108.595 H6 C1 H7 108.704
H8 C2 H9 109.847
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability