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

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-267.924886
Energy at 298.15K-267.934177
Nuclear repulsion energy192.492096
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 B3PW91/3-21G*
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 3461 3321 8.84      
2 A 3161 3033 10.39      
3 A 3153 3025 15.79      
4 A 3149 3021 33.86      
5 A 3138 3011 7.76      
6 A 3077 2952 17.83      
7 A 3069 2945 9.43      
8 A 3064 2940 10.83      
9 A 1576 1512 12.73      
10 A 1553 1490 1.66      
11 A 1547 1484 6.83      
12 A 1536 1474 3.88      
13 A 1452 1393 14.09      
14 A 1431 1373 23.35      
15 A 1409 1352 13.52      
16 A 1359 1304 1.80      
17 A 1307 1254 69.17      
18 A 1226 1176 18.96      
19 A 1175 1128 23.91      
20 A 1155 1108 12.45      
21 A 1009 968 2.18      
22 A 989 949 1.80      
23 A 960 921 0.98      
24 A 906 869 3.51      
25 A 820 786 1.79      
26 A 482 462 7.26      
27 A 450 432 3.42      
28 A 348 334 2.70      
29 A 279 268 5.85      
30 A 265 254 6.92      
31 A 216 207 18.41      
32 A 199 191 114.95      
33 A 140 134 11.96      

Unscaled Zero Point Vibrational Energy (zpe) 24529.4 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 23533.5 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 B3PW91/3-21G*
ABC
0.25881 0.12535 0.09355

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.919 -0.161 -0.209
H2 -2.375 -0.036 0.671
O3 -0.628 -0.755 0.321
C4 1.707 -0.721 0.026
H5 1.836 -0.702 1.114
H6 1.652 -1.763 -0.305
H7 2.572 -0.239 -0.442
C8 0.407 1.470 0.124
H9 0.613 1.507 1.201
H10 1.159 2.066 -0.404
H11 -0.585 1.888 -0.067
C12 0.427 0.023 -0.354
H13 0.255 -0.029 -1.436

Atom - Atom Distances (Å)
  O1 H2 O3 C4 H5 H6 H7 C8 H9 H10 H11 C12 H13
O10.99901.51613.67704.01743.91534.49792.86033.34343.80422.44882.35812.5001
H20.99901.92094.18954.28594.48925.07503.21063.40434.25042.72982.98483.3702
O31.51611.92092.35462.58912.57083.33052.46192.72623.41732.67141.47462.0956
C43.67704.18952.35461.09541.09441.09532.55012.74682.87323.47441.52832.1734
H54.01744.28592.58911.09541.78071.78282.78212.52733.22913.73702.15953.0741
H63.91534.48922.57081.09441.78071.78533.49103.74733.86194.28832.16552.4967
H74.49795.07503.33051.09531.78281.78532.81613.09652.70413.82522.16242.5296
C82.86033.21062.46192.55012.78213.49102.81611.09631.09541.09341.52512.1694
H93.34343.40432.72622.74682.52733.74733.09651.09631.78481.78532.15813.0725
H103.80424.25043.41732.87323.22913.86192.70411.09541.78481.78522.17142.5047
H112.44882.72982.67143.47443.73704.28833.82521.09341.78531.78522.14192.5010
C122.35812.98481.47461.52832.15952.16552.16241.52512.15812.17142.14191.0963
H132.50013.37022.09562.17343.07412.49672.52962.16943.07252.50472.50101.0963

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 104.077 H2 O1 O3 97.462
O3 C12 C4 103.262 O3 C12 C8 110.309
O3 C12 H13 108.307 C4 C12 C8 113.264
C4 C12 H13 110.727 H5 C4 H6 108.817
H5 C4 H7 108.942 H5 C4 C12 109.682
H6 C4 H7 109.241 H6 C4 C12 110.213
H7 C4 C12 109.919 C8 C12 H13 110.641
H9 C8 H10 109.039 H9 C8 H11 109.236
H9 C8 C12 109.748 H10 C8 H11 109.294
H10 C8 C12 110.853 H11 C8 C12 108.649
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.362      
2 H 0.372      
3 O -0.297      
4 C -0.624      
5 H 0.223      
6 H 0.233      
7 H 0.217      
8 C -0.626      
9 H 0.210      
10 H 0.206      
11 H 0.227      
12 C -0.009      
13 H 0.229      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.551 1.105 0.804 1.474
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.612 -1.532 -3.793
y -1.532 -32.384 0.228
z -3.793 0.228 -30.335
Traceless
 xyz
x 3.748 -1.532 -3.793
y -1.532 -3.411 0.228
z -3.793 0.228 -0.337
Polar
3z2-r2-0.674
x2-y24.773
xy-1.532
xz-3.793
yz0.228


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 133.784
(<r2>)1/2 11.567