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: B3LYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/6-31G
 hartrees
Energy at 0K-269.414186
Energy at 298.15K-269.423236
Nuclear repulsion energy191.374871
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 B3LYP/6-31G
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 3594 3458 18.72      
2 A 3153 3033 16.82      
3 A 3149 3029 23.12      
4 A 3136 3017 42.65      
5 A 3123 3005 14.33      
6 A 3063 2947 16.82      
7 A 3058 2942 16.95      
8 A 3051 2935 15.35      
9 A 1556 1497 11.13      
10 A 1538 1480 2.38      
11 A 1533 1475 5.01      
12 A 1524 1466 3.28      
13 A 1459 1404 8.69      
14 A 1443 1388 14.18      
15 A 1410 1356 13.56      
16 A 1380 1327 0.85      
17 A 1307 1257 66.81      
18 A 1227 1181 16.90      
19 A 1171 1127 20.97      
20 A 1159 1115 18.55      
21 A 986 948 1.48      
22 A 967 931 0.49      
23 A 915 880 5.61      
24 A 882 849 2.94      
25 A 797 767 7.77      
26 A 482 464 7.08      
27 A 460 442 7.04      
28 A 351 337 1.81      
29 A 273 263 4.17      
30 A 235 226 0.41      
31 A 203 195 0.35      
32 A 128 124 7.11      
33 A 114 109 164.82      

Unscaled Zero Point Vibrational Energy (zpe) 24412.9 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 23485.2 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 B3LYP/6-31G
ABC
0.25554 0.12271 0.09166

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.951 -0.115 -0.217
H2 -2.518 -0.225 0.580
O3 -0.653 -0.702 0.346
C4 1.678 -0.793 0.008
H5 1.850 -0.794 1.089
H6 1.569 -1.828 -0.330
H7 2.554 -0.354 -0.481
C8 0.494 1.476 0.127
H9 0.707 1.525 1.202
H10 1.284 2.017 -0.407
H11 -0.459 1.975 -0.066
C12 0.432 0.024 -0.337
H13 0.225 -0.028 -1.413

Atom - Atom Distances (Å)
  O1 H2 O3 C4 H5 H6 H7 C8 H9 H10 H11 C12 H13
O10.98401.53113.69814.07583.91594.51942.93753.43003.87892.57262.38992.4848
H20.98401.93864.27214.43384.48295.18363.48893.72144.52283.08203.09903.3963
O31.53111.93862.35702.61272.58123.33062.47132.74593.42182.71531.47332.0780
C43.69814.27212.35701.09531.09361.09552.56242.78262.86733.49781.52932.1705
H54.07584.43382.61271.09531.77781.77632.81402.58823.23423.78622.17133.0798
H63.91594.48292.58121.09361.77781.77893.50443.78553.85564.31792.17332.4930
H74.51945.18363.33061.09551.77631.77892.82263.12692.69103.83162.16092.5297
C82.93753.48892.47132.56242.81403.50442.82261.09611.09621.09301.52562.1699
H93.43003.72142.74592.78262.58823.78553.12691.09611.77841.77992.16673.0789
H103.87894.52283.42182.86733.23423.85562.69101.09621.77841.77672.16802.5128
H112.57263.08202.71533.49783.78624.31793.83161.09301.77991.77672.16172.5094
C122.38993.09901.47331.52932.17132.17332.16091.52562.16672.16802.16171.0968
H132.48483.39632.07802.17053.07982.49302.52972.16993.07892.51282.50941.0968

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 105.379 H2 O1 O3 98.502
O3 C12 C4 103.421 O3 C12 C8 110.976
O3 C12 H13 106.989 C4 C12 C8 114.020
C4 C12 H13 110.397 H5 C4 H6 108.625
H5 C4 H7 108.353 H5 C4 C12 110.551
H6 C4 H7 108.713 H6 C4 C12 110.812
H7 C4 C12 109.726 C8 C12 H13 110.609
H9 C8 H10 108.425 H9 C8 H11 108.793
H9 C8 C12 110.396 H10 C8 H11 108.494
H10 C8 C12 110.489 H11 C8 C12 110.187
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.395      
2 H 0.384      
3 O -0.335      
4 C -0.411      
5 H 0.150      
6 H 0.158      
7 H 0.143      
8 C -0.404      
9 H 0.137      
10 H 0.131      
11 H 0.162      
12 C 0.131      
13 H 0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.676 0.773 0.656 1.219
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.152 -0.535 -3.803
y -0.535 -32.495 0.099
z -3.803 0.099 -31.194
Traceless
 xyz
x 4.693 -0.535 -3.803
y -0.535 -3.322 0.099
z -3.803 0.099 -1.371
Polar
3z2-r2-2.741
x2-y25.344
xy-0.535
xz-3.803
yz0.099


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.807 -0.261 -0.164
y -0.261 5.522 -0.209
z -0.164 -0.209 5.323


<r2> (average value of r2) Å2
<r2> 136.327
(<r2>)1/2 11.676