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

using model chemistry: LSDA/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 LSDA/3-21G*
 hartrees
Energy at 0K-694.265479
Energy at 298.15K-694.269993
Nuclear repulsion energy285.756814
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 LSDA/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 3406 3344 4.62      
2 A 1223 1201 200.51      
3 A 1064 1045 89.70      
4 A 827 812 78.35      
5 A 509 500 13.48      
6 A 407 400 69.53      
7 A 357 350 0.39      
8 A 111 109 64.92      
9 B 3407 3346 154.91      
10 B 1454 1428 209.01      
11 B 1091 1072 2.38      
12 B 889 873 394.99      
13 B 499 490 28.81      
14 B 456 448 60.78      
15 B 163 160 217.83      

Unscaled Zero Point Vibrational Energy (zpe) 7931.6 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 7788.9 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 LSDA/3-21G*
ABC
0.16926 0.16043 0.15587

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.148
O2 1.267 -0.037 0.850
O3 -1.267 0.037 0.850
O4 0.000 -1.196 -0.911
O5 0.000 1.196 -0.911
H6 -0.751 1.834 -0.699
H7 0.751 -1.834 -0.699

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.44921.44921.59731.59732.15502.1550
O21.44922.53482.45982.49563.15802.4283
O31.44922.53482.49562.45982.42833.1580
O41.59732.45982.49562.39263.12891.0074
O51.59732.49562.45982.39261.00743.1289
H62.15503.15802.42833.12891.00743.9631
H72.15502.42833.15801.00743.12893.9631

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 109.571 S1 O5 H6 109.571
O2 S1 O3 121.978 O2 S1 O4 107.590
O2 S1 O5 109.907 O3 S1 O4 109.907
O3 S1 O5 107.590 O4 S1 O5 97.001
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.031      
2 O -0.396      
3 O -0.396      
4 O -0.526      
5 O -0.526      
6 H 0.406      
7 H 0.406      


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 -1.397 1.397
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.667 -6.161 0.000
y -6.161 -24.967 0.000
z 0.000 0.000 -37.903
Traceless
 xyz
x -5.232 -6.161 0.000
y -6.161 12.318 0.000
z 0.000 0.000 -7.086
Polar
3z2-r2-14.172
x2-y2-11.700
xy-6.161
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.785 -0.699 0.000
y -0.699 3.823 0.000
z 0.000 0.000 3.145


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