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

using model chemistry: BLYP/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 BLYP/6-31G
 hartrees
Energy at 0K-699.906133
Energy at 298.15K-699.909437
Nuclear repulsion energy251.834622
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 BLYP/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 3366 3340 30.11      
2 A 1061 1053 38.62      
3 A 842 836 87.67      
4 A 542 538 66.52      
5 A 326 324 24.96      
6 A 274 272 48.46      
7 A 196 194 12.01      
8 A 134 133 81.27      
9 B 3364 3338 66.76      
10 B 1140 1131 83.36      
11 B 934 927 60.26      
12 B 600 596 175.37      
13 B 309 307 10.42      
14 B 292 290 49.41      
15 B 161 160 65.24      

Unscaled Zero Point Vibrational Energy (zpe) 6770.5 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 6719.1 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 BLYP/6-31G
ABC
0.12745 0.12488 0.12075

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.195
O2 0.000 1.444 0.944
O3 0.000 -1.444 0.944
O4 1.433 -0.063 -0.989
O5 -1.433 0.063 -0.989
H6 -1.643 -0.897 -1.200
H7 1.643 0.897 -1.200

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.62691.62691.85971.85972.33402.3340
O21.62692.88802.83902.77433.57412.7557
O31.62692.88802.77432.83902.75573.5741
O41.85972.83902.77432.86953.19421.0048
O51.85972.77432.83902.86951.00483.1942
H62.33403.57412.75573.19421.00483.7433
H72.33402.75573.57411.00483.19423.7433

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 105.196 S1 O5 H6 105.196
O2 S1 O3 125.145 O2 S1 O4 108.848
O2 S1 O5 105.253 O3 S1 O4 105.253
O3 S1 O5 108.848 O4 S1 O5 100.977
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.210      
2 O -0.452      
3 O -0.452      
4 O -0.536      
5 O -0.536      
6 H 0.383      
7 H 0.383      


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 -2.336 2.336
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.048 6.695 0.000
y 6.695 -38.375 0.000
z 0.000 0.000 -36.724
Traceless
 xyz
x 3.501 6.695 0.000
y 6.695 -2.989 0.000
z 0.000 0.000 -0.512
Polar
3z2-r2-1.025
x2-y24.327
xy6.695
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> 129.407
(<r2>)1/2 11.376