return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: wB97X-D/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at wB97X-D/6-311G**
 hartrees
Energy at 0K-269.479771
Energy at 298.15K-269.489245
HF Energy-269.479771
Nuclear repulsion energy195.702475
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 wB97X-D/6-311G**
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 3855 3687 40.40      
2 A 3151 3014 20.43      
3 A 3145 3009 20.64      
4 A 3140 3003 38.08      
5 A 3125 2989 17.74      
6 A 3060 2927 17.01      
7 A 3051 2918 30.55      
8 A 3049 2917 10.12      
9 A 1517 1451 7.71      
10 A 1499 1434 6.60      
11 A 1491 1426 1.41      
12 A 1487 1423 2.20      
13 A 1427 1365 3.02      
14 A 1415 1354 31.91      
15 A 1405 1344 43.18      
16 A 1385 1325 20.15      
17 A 1366 1306 14.27      
18 A 1204 1152 4.25      
19 A 1193 1141 34.31      
20 A 1158 1108 11.32      
21 A 1029 984 3.06      
22 A 962 920 2.41      
23 A 939 898 1.56      
24 A 930 890 10.69      
25 A 842 805 2.40      
26 A 519 496 5.89      
27 A 480 459 4.86      
28 A 360 344 0.53      
29 A 300 287 5.97      
30 A 277 265 66.59      
31 A 233 223 68.03      
32 A 203 195 5.76      
33 A 148 142 6.01      

Unscaled Zero Point Vibrational Energy (zpe) 24671.7 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 23598.5 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 wB97X-D/6-311G**
ABC
0.26201 0.12979 0.09572

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.903 -0.177 -0.190
H2 -2.306 0.128 0.629
O3 -0.655 -0.693 0.310
C4 1.659 -0.769 0.033
H5 1.815 -0.752 1.115
H6 1.571 -1.808 -0.290
H7 2.534 -0.325 -0.448
C8 0.461 1.468 0.104
H9 0.624 1.531 1.184
H10 1.279 1.989 -0.400
H11 -0.470 1.978 -0.145
C12 0.409 0.013 -0.335
H13 0.235 -0.047 -1.415

Atom - Atom Distances (Å)
  O1 H2 O3 C4 H5 H6 H7 C8 H9 H10 H11 C12 H13
O10.96241.44013.61783.98173.83854.44652.89513.34553.85502.58782.32382.4677
H20.96241.87184.10904.24174.42944.97893.11933.29624.16862.71892.88323.2662
O31.44011.87182.33162.59822.55993.29782.44112.71123.38232.71581.43042.0459
C43.61784.10902.33161.09311.09111.09242.53882.77332.81833.48031.52062.1559
H53.98174.24172.59821.09311.77421.77242.78932.57613.17733.77632.16003.0650
H63.83854.42942.55991.09111.77421.77493.48083.77103.80994.30302.16072.4802
H74.44654.97893.29781.09241.77241.77492.79563.12402.63333.79722.15482.5093
C82.89513.11932.44112.53882.78933.48082.79561.09411.09301.09091.52052.1575
H93.34553.29622.71122.77332.57613.77103.12401.09411.77431.77912.15883.0660
H103.85504.16863.38232.81833.17733.80992.63331.09301.77431.76772.16022.5033
H112.58782.71892.71583.48033.77634.30303.79721.09091.77911.76772.16032.4916
C122.32382.88321.43041.52062.16002.16072.15481.52052.15882.16022.16031.0956
H132.46773.26622.04592.15593.06502.48022.50932.15753.06602.50332.49161.0956

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 108.101 H2 O1 O3 100.463
O3 C12 C4 104.349 O3 C12 C8 111.596
O3 C12 H13 107.439 C4 C12 C8 113.201
C4 C12 H13 109.927 H5 C4 H6 108.649
H5 C4 H7 108.382 H5 C4 C12 110.397
H6 C4 H7 108.756 H6 C4 C12 110.576
H7 C4 C12 110.025 C8 C12 H13 110.056
H9 C8 H10 108.442 H9 C8 H11 109.022
H9 C8 C12 110.251 H10 C8 H11 108.078
H10 C8 C12 110.424 H11 C8 C12 110.561
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.263      
2 H 0.273      
3 O -0.252      
4 C -0.322      
5 H 0.122      
6 H 0.137      
7 H 0.120      
8 C -0.327      
9 H 0.115      
10 H 0.118      
11 H 0.125      
12 C 0.029      
13 H 0.125      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.791 1.549 0.584 1.835
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.418 -2.616 -3.237
y -2.616 -32.601 0.681
z -3.237 0.681 -30.976
Traceless
 xyz
x 2.371 -2.616 -3.237
y -2.616 -2.404 0.681
z -3.237 0.681 0.033
Polar
3z2-r20.067
x2-y23.183
xy-2.616
xz-3.237
yz0.681


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.602 -0.383 -0.063
y -0.383 6.345 0.055
z -0.063 0.055 5.844


<r2> (average value of r2) Å2
<r2> 131.590
(<r2>)1/2 11.471