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

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-266.934887
Energy at 298.15K-266.944177
HF Energy-266.406693
Nuclear repulsion energy191.122116
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 MP2/3-21G*
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 3422 3255 5.17      
2 A 3197 3041 10.54      
3 A 3180 3025 18.29      
4 A 3174 3019 36.97      
5 A 3166 3012 4.31      
6 A 3113 2961 15.33      
7 A 3096 2945 10.61      
8 A 3094 2943 8.24      
9 A 1618 1539 9.63      
10 A 1598 1520 0.90      
11 A 1593 1515 4.91      
12 A 1584 1507 2.58      
13 A 1491 1419 9.43      
14 A 1472 1401 11.87      
15 A 1448 1378 12.18      
16 A 1393 1325 9.81      
17 A 1295 1232 56.41      
18 A 1256 1194 22.89      
19 A 1186 1128 20.91      
20 A 1172 1115 11.58      
21 A 1011 961 1.67      
22 A 980 933 1.61      
23 A 962 915 1.92      
24 A 896 852 1.67      
25 A 810 771 2.52      
26 A 479 455 7.67      
27 A 449 427 5.20      
28 A 353 336 3.06      
29 A 283 269 4.49      
30 A 265 252 0.87      
31 A 226 215 0.99      
32 A 182 173 128.26      
33 A 136 129 20.89      

Unscaled Zero Point Vibrational Energy (zpe) 24788.0 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 23580.8 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 MP2/3-21G*
ABC
0.25549 0.12328 0.09230

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.932 -0.142 -0.225
H2 -2.441 -0.163 0.637
O3 -0.631 -0.756 0.346
C4 1.720 -0.730 0.011
H5 1.857 -0.713 1.097
H6 1.654 -1.769 -0.323
H7 2.580 -0.249 -0.466
C8 0.415 1.478 0.134
H9 0.618 1.502 1.210
H10 1.175 2.068 -0.388
H11 -0.573 1.901 -0.056
C12 0.430 0.024 -0.353
H13 0.238 -0.026 -1.429

Atom - Atom Distances (Å)
  O1 H2 O3 C4 H5 H6 H7 C8 H9 H10 H11 C12 H13
O11.00111.54773.70634.05333.93904.51962.87503.35643.81682.45992.37132.4844
H21.00111.92704.24584.35764.50245.14143.33263.52984.37112.86893.04263.3859
O31.54771.92702.37462.59912.58743.35042.47632.72093.43172.68791.49042.1068
C43.70634.24582.37461.09441.09341.09462.56772.76232.87843.49051.53742.1829
H54.05334.35762.59911.09441.78111.78282.79392.53983.22543.75052.16303.0777
H63.93904.50242.58741.09341.78111.78543.50553.75753.86744.30112.17082.5034
H74.51965.14143.35041.09461.78281.78542.83353.11772.71083.83812.17002.5421
C82.87503.33262.47632.56772.79393.50552.83351.09511.09451.09161.53402.1765
H93.35643.52982.72092.76232.53983.75753.11771.09511.78471.78382.15893.0727
H103.81684.37113.43172.87843.22543.86742.71081.09451.78471.78722.17632.5191
H112.45992.86892.68793.49053.75054.30113.83811.09161.78381.78722.14912.5009
C122.37133.04261.49041.53742.16302.17082.17001.53402.15892.17632.14911.0946
H132.48443.38592.10682.18293.07772.50342.54212.17653.07272.51912.50091.0946

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 102.603 H2 O1 O3 95.852
O3 C12 C4 103.297 O3 C12 C8 109.914
O3 C12 H13 108.203 C4 C12 C8 113.445
C4 C12 H13 110.952 H5 C4 H6 109.000
H5 C4 H7 109.055 H5 C4 C12 109.394
H6 C4 H7 109.371 H6 C4 C12 110.066
H7 C4 C12 109.932 C8 C12 H13 110.675
H9 C8 H10 109.194 H9 C8 H11 109.321
H9 C8 C12 109.263 H10 C8 H11 109.676
H10 C8 C12 110.669 H11 C8 C12 108.696
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability