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

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-269.442746
Energy at 298.15K-269.452129
Nuclear repulsion energy195.994206
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 mPW1PW91/6-31G(2df,p)
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 3829 3655 33.04      
2 A 3166 3022 15.59      
3 A 3159 3016 16.15      
4 A 3156 3013 29.57      
5 A 3146 3003 11.75      
6 A 3071 2932 13.09      
7 A 3063 2924 15.27      
8 A 3044 2906 24.77      
9 A 1516 1447 6.11      
10 A 1495 1427 2.97      
11 A 1487 1420 1.75      
12 A 1481 1414 1.84      
13 A 1418 1354 7.40      
14 A 1406 1342 32.93      
15 A 1403 1340 34.45      
16 A 1378 1316 12.61      
17 A 1353 1291 15.83      
18 A 1200 1146 6.26      
19 A 1192 1138 31.80      
20 A 1153 1101 10.93      
21 A 1015 969 3.36      
22 A 956 913 3.52      
23 A 928 886 4.92      
24 A 924 882 3.21      
25 A 839 801 2.00      
26 A 512 489 4.95      
27 A 468 446 4.08      
28 A 349 333 0.51      
29 A 292 279 10.02      
30 A 273 261 69.81      
31 A 231 221 39.69      
32 A 200 191 2.94      
33 A 139 132 5.37      

Unscaled Zero Point Vibrational Energy (zpe) 24620.8 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 23505.5 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 mPW1PW91/6-31G(2df,p)
ABC
0.26229 0.13048 0.09608

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.887 -0.201 -0.181
H2 -2.222 0.258 0.597
O3 -0.648 -0.705 0.308
C4 1.659 -0.753 0.034
H5 1.820 -0.731 1.115
H6 1.584 -1.794 -0.283
H7 2.526 -0.300 -0.451
C8 0.438 1.467 0.100
H9 0.613 1.543 1.177
H10 1.241 1.999 -0.417
H11 -0.503 1.963 -0.143
C12 0.400 0.011 -0.333
H13 0.234 -0.046 -1.417

Atom - Atom Distances (Å)
  O1 H2 O3 C4 H5 H6 H7 C8 H9 H10 H11 C12 H13
O10.96331.42443.59503.96293.82084.42192.87503.33663.83122.56842.30112.4599
H20.96331.86754.04944.19334.41264.89382.96403.16594.00652.53152.79243.1909
O31.42441.86752.32372.59702.55323.28852.43772.72033.37782.71011.42202.0471
C43.59504.04942.32371.09311.09141.09202.53422.76982.82003.47611.51822.1532
H53.96294.19332.59701.09311.77271.77142.78782.57553.18383.77352.16053.0656
H63.82084.41262.55321.09141.77271.77433.47803.77033.81164.30072.15992.4830
H74.42194.89383.28851.09201.77141.77432.78993.11602.63413.79372.15212.4995
C82.87502.96402.43772.53422.78783.47802.78991.09401.09291.09161.51972.1521
H93.33663.16592.72032.76982.57553.77033.11601.09401.77291.77872.16223.0657
H103.83124.00653.37782.82003.18383.81162.63411.09291.77291.76612.16082.4895
H112.56842.53152.71013.47613.77354.30073.79371.09161.77871.76612.15932.4909
C122.30112.79241.42201.51822.16052.15992.15211.51972.16222.16082.15931.0977
H132.45993.19092.04712.15323.06562.48302.49952.15213.06572.48952.49091.0977

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 107.884 H2 O1 O3 101.150
O3 C12 C4 104.384 O3 C12 C8 111.885
O3 C12 H13 107.979 C4 C12 C8 113.066
C4 C12 H13 109.751 H5 C4 H6 108.477
H5 C4 H7 108.328 H5 C4 C12 110.603
H6 C4 H7 108.703 H6 C4 C12 110.660
H7 C4 C12 110.006 C8 C12 H13 109.565
H9 C8 H10 108.318 H9 C8 H11 108.947
H9 C8 C12 110.578 H10 C8 H11 107.895
H10 C8 C12 110.532 H11 C8 C12 110.493
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.339      
2 H 0.326      
3 O -0.211      
4 C -0.472      
5 H 0.151      
6 H 0.159      
7 H 0.148      
8 C -0.471      
9 H 0.142      
10 H 0.146      
11 H 0.147      
12 C 0.157      
13 H 0.115      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.750 1.436 0.551 1.711
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.985 -2.539 -2.866
y -2.539 -31.864 0.682
z -2.866 0.682 -30.345
Traceless
 xyz
x 2.120 -2.539 -2.866
y -2.539 -2.199 0.682
z -2.866 0.682 0.079
Polar
3z2-r20.159
x2-y22.880
xy-2.539
xz-2.866
yz0.682


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.491 -0.336 -0.061
y -0.336 6.185 0.066
z -0.061 0.066 5.635


<r2> (average value of r2) Å2
<r2> 130.800
(<r2>)1/2 11.437