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All results from a given calculation for C3H8O2 (Hydroperoxide, 1-methylethyl)

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-267.696822
Energy at 298.15K-267.706082
Nuclear repulsion energy191.109628
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 PBEPBE/3-21G
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 3286 3256 4.20      
2 A 3083 3055 9.66      
3 A 3080 3052 14.15      
4 A 3075 3047 33.47      
5 A 3065 3037 8.93      
6 A 2996 2969 10.97      
7 A 2989 2962 16.94      
8 A 2980 2953 17.89      
9 A 1536 1522 10.95      
10 A 1514 1500 1.21      
11 A 1504 1491 7.06      
12 A 1494 1481 4.04      
13 A 1403 1391 13.42      
14 A 1382 1370 19.56      
15 A 1365 1352 17.40      
16 A 1304 1292 3.35      
17 A 1240 1228 56.74      
18 A 1188 1177 21.51      
19 A 1137 1127 20.79      
20 A 1117 1107 10.07      
21 A 962 954 2.99      
22 A 938 930 0.31      
23 A 923 914 3.21      
24 A 869 861 1.92      
25 A 794 787 1.38      
26 A 464 459 6.36      
27 A 436 432 3.02      
28 A 338 335 2.81      
29 A 285 282 52.62      
30 A 275 273 2.19      
31 A 239 237 75.90      
32 A 206 204 1.29      
33 A 144 142 6.72      

Unscaled Zero Point Vibrational Energy (zpe) 23803.7 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 23587.1 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 PBEPBE/3-21G
ABC
0.25577 0.12390 0.09245

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.935 -0.178 -0.204
H2 -2.331 0.022 0.709
O3 -0.613 -0.784 0.311
C4 1.730 -0.699 0.032
H5 1.846 -0.676 1.129
H6 1.695 -1.749 -0.302
H7 2.596 -0.197 -0.431
C8 0.376 1.478 0.125
H9 0.597 1.518 1.206
H10 1.101 2.110 -0.417
H11 -0.645 1.852 -0.055
C12 0.435 0.027 -0.363
H13 0.276 -0.023 -1.456

Atom - Atom Distances (Å)
  O1 H2 O3 C4 H5 H6 H7 C8 H9 H10 H11 C12 H13
O11.01491.54323.70974.04033.95704.53712.86193.35753.80682.40972.38452.5460
H21.01491.93944.18024.25634.51335.06263.12923.32554.17182.60342.96703.3896
O31.54321.93942.36132.59412.57553.34602.47632.75053.44112.66201.48702.1196
C43.70974.18022.36131.10341.10231.10312.56542.75242.91293.48631.53592.1876
H54.04034.25632.59411.10341.79481.79642.79472.52573.27193.74142.17043.0944
H63.95704.51332.57551.10231.79481.79923.51213.76173.90564.30142.17792.5147
H74.53715.06263.34601.10311.79641.79922.83623.10142.74893.85272.17362.5424
C82.86193.12922.47632.56542.79473.51212.83621.10441.10321.10191.53222.1826
H93.35753.32552.75052.75242.52573.76173.10141.10441.79941.80102.17053.0929
H103.80684.17183.44112.91293.27193.90562.74891.10321.79941.80092.18722.5118
H112.40972.60342.66203.48633.74144.30143.85271.10191.80101.80092.14312.5156
C122.38452.96701.48701.53592.17042.17792.17361.53222.17052.18722.14311.1060
H132.54603.38962.11962.18763.09442.51472.54242.18263.09292.51182.51561.1060

picture of Hydroperoxide, 1-methylethyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O3 C12 103.786 H2 O1 O3 96.419
O3 C12 C4 102.718 O3 C12 C8 110.197
O3 C12 H13 108.774 C4 C12 C8 113.465
C4 C12 H13 110.742 H5 C4 H6 108.916
H5 C4 H7 109.004 H5 C4 C12 109.545
H6 C4 H7 109.341 H6 C4 C12 110.198
H7 C4 C12 109.813 C8 C12 H13 110.603
H9 C8 H10 109.199 H9 C8 H11 109.435
H9 C8 C12 109.748 H10 C8 H11 109.516
H10 C8 C12 111.137 H11 C8 C12 107.781
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.335      
2 H 0.351      
3 O -0.265      
4 C -0.603      
5 H 0.214      
6 H 0.224      
7 H 0.212      
8 C -0.604      
9 H 0.201      
10 H 0.198      
11 H 0.213      
12 C -0.021      
13 H 0.215      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.581 1.127 0.821 1.510
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.140 -1.752 -3.636
y -1.752 -32.565 0.243
z -3.636 0.243 -30.386
Traceless
 xyz
x 3.336 -1.752 -3.636
y -1.752 -3.302 0.243
z -3.636 0.243 -0.034
Polar
3z2-r2-0.068
x2-y24.426
xy-1.752
xz-3.636
yz0.243


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.415 -0.328 -0.263
y -0.328 5.475 -0.035
z -0.263 -0.035 5.248


<r2> (average value of r2) Å2
<r2> 135.152
(<r2>)1/2 11.625