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

using model chemistry: MP2/CEP-31G*

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-31G*
 hartrees
Energy at 0K-53.130873
Energy at 298.15K-53.140093
HF Energy-52.401609
Nuclear repulsion energy111.993725
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-31G*
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 3747 3557 34.38      
2 A 3204 3042 27.55      
3 A 3200 3038 21.81      
4 A 3196 3034 41.20      
5 A 3183 3022 22.22      
6 A 3115 2958 28.54      
7 A 3093 2937 18.62      
8 A 3087 2931 19.68      
9 A 1540 1463 10.43      
10 A 1521 1444 2.70      
11 A 1515 1438 2.04      
12 A 1507 1430 1.11      
13 A 1446 1373 13.05      
14 A 1440 1368 23.14      
15 A 1393 1323 6.17      
16 A 1378 1309 7.68      
17 A 1341 1273 62.23      
18 A 1221 1159 9.58      
19 A 1197 1137 25.68      
20 A 1164 1105 15.84      
21 A 975 926 4.44      
22 A 967 918 0.41      
23 A 946 898 3.27      
24 A 908 862 3.69      
25 A 834 791 3.78      
26 A 493 468 7.39      
27 A 463 439 4.30      
28 A 350 333 0.63      
29 A 286 272 2.27      
30 A 255 242 6.84      
31 A 210 199 3.94      
32 A 174 166 125.32      
33 A 132 125 19.03      

Unscaled Zero Point Vibrational Energy (zpe) 24740.1 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 23488.2 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-31G*
ABC
0.25455 0.12587 0.09330

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.922 -0.162 -0.208
H2 -2.356 0.082 0.638
O3 -0.654 -0.705 0.338
C4 1.668 -0.783 0.021
H5 1.824 -0.771 1.114
H6 1.576 -1.829 -0.316
H7 2.547 -0.325 -0.466
C8 0.478 1.483 0.113
H9 0.650 1.531 1.203
H10 1.313 1.994 -0.400
H11 -0.457 2.013 -0.133
C12 0.405 0.015 -0.342
H13 0.207 -0.045 -1.429

Atom - Atom Distances (Å)
  O1 H2 O3 C4 H5 H6 H7 C8 H9 H10 H11 C12 H13
O10.98221.48423.65114.01983.87654.47972.92723.38763.89292.62422.33822.4574
H20.98221.90004.16274.29364.47515.04263.20453.38474.26602.81642.93143.2957
O31.48421.90002.34452.59762.58093.32152.47292.72883.42012.76571.45002.0734
C43.65114.16272.34451.10421.10271.10412.56122.79092.83173.51581.53792.1874
H54.01984.29362.59761.10421.79631.79362.81002.58593.19423.80972.18063.1006
H63.87654.47512.58091.10271.79631.79633.51513.80183.83324.35072.18462.5092
H74.47975.04263.32151.10411.79361.79632.80793.13512.62813.82132.17212.5461
C82.92723.20452.47292.56122.81003.51512.80791.10521.10571.10251.53792.1872
H93.38763.38472.72882.79092.58593.80183.13511.10521.79591.80102.17863.0999
H103.89294.26603.42012.83173.19423.83322.62811.10571.79591.79002.17802.5378
H112.62422.81642.76573.51583.80974.35073.82131.10251.80101.79002.18622.5214
C122.33822.93141.45001.53792.18062.18462.17211.53792.17862.17802.18621.1064
H132.45743.29572.07342.18743.10062.50922.54612.18723.09992.53782.52141.1064

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 105.661 H2 O1 O3 98.728
O3 C12 C4 103.341 O3 C12 C8 111.679
O3 C12 H13 107.643 C4 C12 C8 112.748
C4 C12 H13 110.563 H5 C4 H6 108.970
H5 C4 H7 108.629 H5 C4 C12 110.160
H6 C4 H7 108.977 H6 C4 C12 110.561
H7 C4 C12 109.506 C8 C12 H13 110.552
H9 C8 H10 108.643 H9 C8 H11 109.329
H9 C8 C12 109.943 H10 C8 H11 108.312
H10 C8 C12 109.869 H11 C8 C12 110.699
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability