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

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-700.134088
Energy at 298.15K-700.139065
Nuclear repulsion energy286.155300
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 mPW1PW91/6-31G*
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 3764 3569 45.21      
2 A 1218 1155 174.51      
3 A 1182 1120 94.61      
4 A 819 776 107.95      
5 A 528 501 53.42      
6 A 422 400 23.29      
7 A 354 336 4.27      
8 A 233 221 111.03      
9 B 3760 3565 200.42      
10 B 1480 1403 288.16      
11 B 1197 1135 104.40      
12 B 885 839 341.69      
13 B 528 501 31.82      
14 B 476 452 50.89      
15 B 310 294 68.65      

Unscaled Zero Point Vibrational Energy (zpe) 8576.9 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 8133.5 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 mPW1PW91/6-31G*
ABC
0.16583 0.16288 0.15653

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.163
O2 0.000 1.274 0.831
O3 0.000 -1.274 0.831
O4 1.249 -0.043 -0.855
O5 -1.249 0.043 -0.855
H6 -1.463 -0.870 -1.110
H7 1.463 0.870 -1.110

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.43801.43801.61171.61172.12532.1253
O21.43802.54722.47692.43213.24062.4632
O31.43802.54722.43212.47692.46323.2406
O41.61172.47692.43212.49952.84660.9723
O51.61172.43212.47692.49950.97232.8466
H62.12533.24062.46322.84660.97233.4044
H72.12532.46323.24060.97232.84663.4044

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 108.104 S1 O5 H6 108.104
O2 S1 O3 124.664 O2 S1 O4 108.478
O2 S1 O5 105.634 O3 S1 O4 105.634
O3 S1 O5 108.478 O4 S1 O5 101.684
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.301      
2 O -0.488      
3 O -0.488      
4 O -0.627      
5 O -0.627      
6 H 0.465      
7 H 0.465      


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 -3.111 3.111
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.723 5.759 0.000
y 5.759 -36.206 0.000
z 0.000 0.000 -34.328
Traceless
 xyz
x 3.544 5.759 0.000
y 5.759 -3.180 0.000
z 0.000 0.000 -0.364
Polar
3z2-r2-0.728
x2-y24.483
xy5.759
xz0.000
yz0.000


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> 103.646
(<r2>)1/2 10.181