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 CH3OOH (Methyl peroxide)

using model chemistry: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-189.834199
Energy at 298.15K-189.839139
Nuclear repulsion energy82.786233
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 HF/aug-cc-pVDZ
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 4134 3764 63.43      
2 A 3281 2988 26.68      
3 A 3252 2961 51.29      
4 A 3175 2891 48.11      
5 A 1604 1461 12.61      
6 A 1572 1431 8.97      
7 A 1564 1424 10.65      
8 A 1543 1405 42.58      
9 A 1321 1203 6.83      
10 A 1262 1149 3.87      
11 A 1222 1113 23.99      
12 A 1025 933 33.65      
13 A 499 455 5.66      
14 A 266 243 12.61      
15 A 229 209 124.19      

Unscaled Zero Point Vibrational Energy (zpe) 12974.2 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 11814.3 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 HF/aug-cc-pVDZ
ABC
1.53029 0.36169 0.31763

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.114 -0.212 0.020
O2 -0.038 0.586 -0.015
O3 -1.133 -0.262 -0.101
H4 1.950 0.484 0.039
H5 1.130 -0.836 0.914
H6 1.173 -0.838 -0.870
H7 -1.566 -0.133 0.730

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40242.25121.08801.09071.08922.7735
O21.40241.38721.99182.06172.05541.8454
O32.25121.38723.17522.54582.49810.9456
H41.08801.99183.17521.78371.78293.6356
H51.09072.06172.54581.78371.78432.7913
H61.08922.05542.49811.78291.78433.2487
H72.77351.84540.94563.63562.79133.2487

picture of Methyl peroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 O3 107.607 O2 C1 H4 105.522
O2 C1 H5 110.961 O2 C1 H6 110.532
O2 O3 H7 102.925 H4 C1 H5 109.913
H4 C1 H6 109.958 H5 C1 H6 109.876
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.929      
2 O -0.526      
3 O -0.235      
4 H -0.162      
5 H -0.096      
6 H -0.087      
7 H 0.177      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.788 -0.709 1.496 1.833
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.232 -0.132 -2.739
y -0.132 -19.793 -0.135
z -2.739 -0.135 -17.509
Traceless
 xyz
x 3.419 -0.132 -2.739
y -0.132 -3.423 -0.135
z -2.739 -0.135 0.004
Polar
3z2-r20.008
x2-y24.561
xy-0.132
xz-2.739
yz-0.135


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.505 0.275 -0.106
y 0.275 3.307 -0.003
z -0.106 -0.003 3.180


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000