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All results from a given calculation for H2SO4 (Sulfuric acid)

using model chemistry: M06-2X/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 M06-2X/3-21G*
 hartrees
Energy at 0K-696.559207
Energy at 298.15K-696.564482
HF Energy-696.559207
Nuclear repulsion energy287.206099
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 M06-2X/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 3595 3405 32.99      
2 A 1257 1191 209.51      
3 A 1117 1058 109.41      
4 A 888 841 110.65      
5 A 548 519 81.58      
6 A 447 424 37.50      
7 A 372 352 3.09      
8 A 309 293 138.40      
9 B 3591 3401 205.79      
10 B 1497 1418 261.95      
11 B 1150 1089 26.26      
12 B 961 911 466.03      
13 B 550 521 62.02      
14 B 498 472 77.79      
15 B 370 350 98.84      

Unscaled Zero Point Vibrational Energy (zpe) 8574.7 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 8121.9 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 M06-2X/3-21G*
ABC
0.16935 0.16204 0.15844

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.154
O2 0.000 1.267 0.833
O3 0.000 -1.267 0.833
O4 1.228 0.017 -0.859
O5 -1.228 -0.017 -0.859
H6 1.612 -0.887 -1.022
H7 -1.612 0.887 -1.022

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.43711.43711.59181.59182.18352.1835
O21.43712.53392.43542.45273.26742.4863
O31.43712.53392.45272.43542.48633.2674
O41.59182.43542.45272.45580.99512.9743
O51.59182.45272.43542.45582.97430.9951
H62.18353.26742.48630.99512.97433.6791
H72.18352.48633.26742.97430.99513.6791

picture of Sulfuric acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 O4 H7 45.704 S1 O5 H6 45.704
O2 S1 O3 123.662 O2 S1 O4 106.930
O2 S1 O5 108.035 O3 S1 O4 108.035
O3 S1 O5 106.930 O4 S1 O5 100.961
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.311      
2 O -0.472      
3 O -0.472      
4 O -0.606      
5 O -0.606      
6 H 0.422      
7 H 0.422      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.860 2.860
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.341 -7.016 0.000
y -7.016 -36.392 0.000
z 0.000 0.000 -35.285
Traceless
 xyz
x 6.498 -7.016 0.000
y -7.016 -4.079 0.000
z 0.000 0.000 -2.419
Polar
3z2-r2-4.837
x2-y27.051
xy-7.016
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.157 -0.535 0.000
y -0.535 3.814 0.000
z 0.000 0.000 2.943


<r2> (average value of r2) Å2
<r2> 102.965
(<r2>)1/2 10.147