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 HOCH2OOH (hydroxy methyl peroxide)

using model chemistry: B3LYP/TZVP

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/TZVP
 hartrees
Energy at 0K-266.181436
Energy at 298.15K-266.186788
HF Energy-266.181436
Nuclear repulsion energy130.987497
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/TZVP
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 3794 3663 39.09      
2 A 3768 3637 46.48      
3 A 3096 2989 37.63      
4 A 3000 2897 66.75      
5 A 1541 1488 0.81      
6 A 1445 1395 40.89      
7 A 1383 1335 32.45      
8 A 1354 1307 53.14      
9 A 1230 1187 3.00      
10 A 1143 1103 84.92      
11 A 1070 1033 116.18      
12 A 999 964 75.72      
13 A 933 900 16.73      
14 A 507 490 15.25      
15 A 408 394 155.27      
16 A 312 301 15.38      
17 A 167 161 110.71      
18 A 104 101 3.85      

Unscaled Zero Point Vibrational Energy (zpe) 13126.7 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 12672.5 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 B3LYP/TZVP
ABC
1.19469 0.14423 0.13455

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.526 0.494 0.028
O2 -1.761 -0.130 -0.050
O3 0.467 -0.527 -0.152
O4 1.751 0.154 -0.013
H5 -1.858 -0.730 0.700
H6 2.173 -0.416 0.645
H7 -0.471 1.216 -0.789
H8 -0.344 0.988 0.990

Atom - Atom Distances (Å)
  C1 O2 O3 O4 H5 H6 H7 H8
C11.38651.43622.30211.93002.91431.09081.0967
O21.38652.26623.52370.96514.00542.00552.0835
O31.43622.26621.45982.48431.88592.07922.0636
O42.30213.52371.45983.78280.96772.58112.4671
H51.93000.96512.48433.78284.04312.81522.3085
H62.91434.00541.88590.96774.04313.42142.9023
H71.09082.00552.07922.58112.81523.42141.7980
H81.09672.08352.06362.46712.30852.90231.7980

picture of hydroxy methyl peroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H5 109.004 C1 O3 O4 105.287
O2 C1 O3 106.790 O2 C1 H7 107.506
O2 C1 H8 113.565 O3 C1 H7 109.973
O3 C1 H8 108.366 O3 O4 H6 99.966
H7 C1 H8 110.553
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.061      
2 O -0.357      
3 O -0.195      
4 O -0.286      
5 H 0.274      
6 H 0.286      
7 H 0.123      
8 H 0.095      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.405 -0.194 2.716 2.753
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.603 -0.678 0.297
y -0.678 -23.148 -2.317
z 0.297 -2.317 -22.271
Traceless
 xyz
x -0.894 -0.678 0.297
y -0.678 -0.211 -2.317
z 0.297 -2.317 1.105
Polar
3z2-r22.209
x2-y2-0.455
xy-0.678
xz0.297
yz-2.317


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.389 0.198 0.153
y 0.198 3.658 -0.178
z 0.153 -0.178 3.430


<r2> (average value of r2) Å2
<r2> 85.521
(<r2>)1/2 9.248