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

using model chemistry: MP2/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-229.124578
Energy at 298.15K-229.130574
HF Energy-228.341033
Nuclear repulsion energy124.812604
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/Def2TZVPP
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' 3188 3033 9.64      
2 A' 3122 2971 11.99      
3 A' 3096 2946 7.50      
4 A' 1526 1452 5.70      
5 A' 1515 1442 1.96      
6 A' 1430 1361 14.26      
7 A' 1395 1327 1.19      
8 A' 1286 1223 130.46      
9 A' 1153 1097 6.88      
10 A' 1057 1006 18.95      
11 A' 869 826 3.83      
12 A' 515 490 11.42      
13 A' 312 297 1.43      
14 A" 3202 3046 19.90      
15 A" 3181 3027 0.09      
16 A" 1501 1428 6.54      
17 A" 1295 1233 0.26      
18 A" 1167 1110 4.00      
19 A" 810 771 0.89      
20 A" 236 225 0.37      
21 A" 78 74 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 15966.4 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 15192.1 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 MP2/Def2TZVPP
ABC
1.12122 0.14998 0.13920

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.493 0.888 0.000
C2 0.000 0.669 0.000
O3 -0.217 -0.757 0.000
O4 -1.484 -1.037 0.000
H5 1.702 1.955 0.000
H6 1.947 0.446 0.884
H7 1.947 0.446 -0.884
H8 -0.476 1.080 -0.887
H9 -0.476 1.080 0.887

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.50942.37303.54561.08741.08731.08732.16872.1687
C21.50941.44262.26142.13332.14982.14981.08741.0874
O32.37301.44261.29773.32242.62892.62892.05642.0564
O43.54562.26141.29774.37103.84103.84102.50702.5070
H51.08742.13333.32244.37101.76581.76582.50962.5096
H61.08732.14982.62893.84101.76581.76783.06752.5048
H71.08732.14982.62893.84101.76581.76782.50483.0675
H82.16871.08742.05642.50702.50963.06752.50481.7740
H92.16871.08742.05642.50702.50962.50483.06751.7740

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 106.977 C1 C2 H8 112.246
C1 C2 H9 112.246 C2 C1 H5 109.400
C2 C1 H6 110.725 C2 C1 H7 110.725
C2 O3 O4 111.114 O3 C2 H8 107.923
O3 C2 H9 107.923 H5 C1 H6 108.581
H5 C1 H7 108.581 H6 C1 H7 108.773
H8 C2 H9 109.317
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability