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All results from a given calculation for CH3OOCH3 (dimethylperoxide)

using model chemistry: MP2=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-226.127366
Energy at 298.15K-226.134172
Nuclear repulsion energy131.361986
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=FULL/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 Ag 3530 3138 0.00      
2 Ag 3329 2959 0.00      
3 Ag 1719 1528 0.00      
4 Ag 1623 1443 0.00      
5 Ag 1370 1218 0.00      
6 Ag 1285 1143 0.00      
7 Ag 1008 896 0.00      
8 Ag 517 460 0.00      
9 Au 3494 3106 15.41      
10 Au 1685 1498 2.69      
11 Au 1208 1074 3.80      
12 Au 182 162 1.24      
13 Au 40 36 5.87      
14 Bg 3494 3106 0.00      
15 Bg 1685 1498 0.00      
16 Bg 1212 1077 0.00      
17 Bg 223 198 0.00      
18 Bu 3530 3138 2.93      
19 Bu 3328 2958 14.86      
20 Bu 1716 1525 9.17      
21 Bu 1605 1427 21.96      
22 Bu 1233 1096 0.32      
23 Bu 1167 1037 6.53      
24 Bu 322 286 3.63      

Unscaled Zero Point Vibrational Energy (zpe) 20252.2 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 18002.2 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=FULL/STO-3G
ABC
0.98850 0.14975 0.13698

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.463 0.566 0.000
O2 0.463 -0.566 0.000
C3 0.463 1.709 0.000
C4 -0.463 -1.709 0.000
H5 -0.169 2.619 0.000
H6 1.112 1.716 0.902
H7 1.112 1.716 -0.902
H8 0.169 -2.619 0.000
H9 -1.112 -1.716 0.902
H10 -1.112 -1.716 -0.902

Atom - Atom Distances (Å)
  O1 O2 C3 C4 H5 H6 H7 H8 H9 H10
O11.46281.47092.27462.07392.14902.14903.24702.53832.5383
O21.46282.27461.47093.24702.53832.53832.07392.14902.1490
C31.47092.27463.54051.10811.11161.11164.33753.87603.8760
C42.27461.47093.54054.33753.87603.87601.10811.11161.1116
H52.07393.24701.10814.33751.80831.80835.24874.52724.5272
H62.14902.53831.11163.87601.80831.80494.52724.08964.4702
H72.14902.53831.11163.87601.80831.80494.52724.47024.0896
H83.24702.07394.33751.10815.24874.52724.52721.80831.8083
H92.53832.14903.87601.11164.52724.08964.47021.80831.8049
H102.53832.14903.87601.11164.52724.47024.08961.80831.8049

picture of dimethylperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 101.667 O1 C3 H5 106.203
O1 C3 H6 111.889 O1 C3 H7 111.889
O2 O1 C3 101.667 O2 C4 H8 106.203
O2 C4 H9 111.889 O2 C4 H10 111.889
H5 C3 H6 109.109 H5 C3 H7 109.109
H6 C3 H7 108.565 H8 C4 H9 109.109
H8 C4 H10 109.109 H9 C4 H10 108.565
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability