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

using model chemistry: MP2/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-52.836089
Energy at 298.15K-52.845078
HF Energy-52.303409
Nuclear repulsion energy109.800415
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/CEP-121G
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 3551 3465 16.97      
2 A 3106 3031 26.16      
3 A 3096 3022 35.22      
4 A 3084 3010 54.63      
5 A 3073 2999 15.31      
6 A 3019 2947 20.97      
7 A 2977 2905 24.12      
8 A 2972 2901 21.29      
9 A 1534 1497 13.52      
10 A 1522 1486 3.92      
11 A 1514 1477 0.74      
12 A 1506 1470 3.49      
13 A 1453 1418 11.93      
14 A 1437 1402 14.26      
15 A 1397 1364 12.81      
16 A 1355 1322 6.35      
17 A 1267 1236 62.60      
18 A 1225 1195 18.29      
19 A 1161 1133 22.64      
20 A 1138 1111 9.49      
21 A 966 943 0.29      
22 A 950 927 0.64      
23 A 915 893 9.59      
24 A 829 809 1.13      
25 A 766 747 7.05      
26 A 463 452 8.12      
27 A 440 429 10.90      
28 A 340 331 1.02      
29 A 265 259 5.75      
30 A 228 222 1.80      
31 A 180 175 7.19      
32 A 151 147 148.21      
33 A 113 110 22.50      

Unscaled Zero Point Vibrational Energy (zpe) 23995.0 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 23419.2 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/CEP-121G
ABC
0.24893 0.11989 0.08901

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.976 -0.029 -0.154
H2 -2.594 -0.772 0.071
O3 -0.664 -0.707 0.366
C4 1.695 -0.820 -0.005
H5 1.860 -0.826 1.085
H6 1.578 -1.856 -0.359
H7 2.578 -0.375 -0.495
C8 0.514 1.494 0.134
H9 0.727 1.518 1.216
H10 1.319 2.026 -0.402
H11 -0.439 2.009 -0.054
C12 0.439 0.024 -0.350
H13 0.206 -0.026 -1.429

Atom - Atom Distances (Å)
  O1 H2 O3 C4 H5 H6 H7 C8 H9 H10 H11 C12 H13
O10.99171.56583.75864.10914.00174.58032.93283.40223.89172.55462.42362.5272
H20.99171.95314.28974.56774.33175.21783.84614.19284.83353.52003.16323.2621
O31.56581.95312.39102.62692.62173.37112.50662.75793.46322.75741.50462.1075
C43.75864.28972.39101.10231.10091.10342.60112.80952.89803.54391.55212.2076
H54.10914.56772.62691.10231.79521.79272.84512.60663.26153.82342.19093.1130
H64.00174.33172.62171.10091.79521.79243.54883.81913.89104.37032.19812.5253
H74.58035.21783.37111.10341.79271.79242.85423.15202.71253.87042.18102.5733
C82.93283.84612.50662.60112.84513.54882.85421.10281.10451.09971.54922.2010
H93.40224.19282.75792.80952.60663.81913.15201.10281.79641.79262.18353.1059
H103.89174.83353.46322.89803.26153.89102.71251.10451.79641.79252.18812.5503
H112.55463.52002.75743.54393.82344.37033.87041.09971.79261.79252.19082.5388
C122.42363.16321.50461.55212.19092.19812.18101.54922.18352.18812.19081.1042
H132.52723.26212.10752.20763.11302.52532.57332.20103.10592.55032.53881.1042

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 104.236 H2 O1 O3 97.019
O3 C12 C4 102.920 O3 C12 C8 110.325
O3 C12 H13 106.768 C4 C12 C8 114.010
C4 C12 H13 111.307 H5 C4 H6 109.141
H5 C4 H7 108.734 H5 C4 C12 110.104
H6 C4 H7 108.810 H6 C4 C12 110.744
H7 C4 C12 109.269 C8 C12 H13 110.985
H9 C8 H10 108.946 H9 C8 H11 108.952
H9 C8 C12 109.692 H10 C8 H11 108.828
H10 C8 C12 109.949 H11 C8 C12 110.442
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability