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

using model chemistry: B3LYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/6-31+G**
 hartrees
Energy at 0K-700.233223
Energy at 298.15K-700.238132
Nuclear repulsion energy283.808611
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 B3LYP/6-31+G**
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 3757 3622 56.61      
2 A 1166 1124 151.28      
3 A 1138 1098 100.65      
4 A 766 739 118.23      
5 A 506 488 43.99      
6 A 412 397 26.43      
7 A 348 336 5.57      
8 A 246 237 96.25      
9 B 3753 3619 197.35      
10 B 1412 1361 303.25      
11 B 1148 1107 88.47      
12 B 824 795 349.12      
13 B 511 493 22.76      
14 B 461 445 47.80      
15 B 311 300 68.90      

Unscaled Zero Point Vibrational Energy (zpe) 8379.7 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 8079.7 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 B3LYP/6-31+G**
ABC
0.16250 0.16027 0.15420

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.167
O2 0.000 1.282 0.839
O3 0.000 -1.282 0.839
O4 1.261 -0.051 -0.862
O5 -1.261 0.051 -0.862
H6 -1.469 -0.856 -1.149
H7 1.469 0.856 -1.149

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.44741.44741.62811.62812.14992.1499
O21.44742.56352.50212.44913.26812.5087
O31.44742.56352.44912.50212.50873.2681
O41.62812.50212.44912.52392.86050.9738
O51.62812.44912.50212.52390.97382.8605
H62.14993.26812.50872.86050.97383.4003
H72.14992.50873.26810.97382.86053.4003

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 108.823 S1 O5 H6 108.823
O2 S1 O3 124.633 O2 S1 O4 108.746
O2 S1 O5 105.410 O3 S1 O4 105.410
O3 S1 O5 108.746 O4 S1 O5 101.626
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.599     1.063
2 O -0.581     -0.436
3 O -0.581     -0.435
4 O -0.609     -0.548
5 O -0.609     -0.547
6 H 0.390     0.451
7 H 0.390     0.452


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 -3.145 3.145
CHELPG        
AIM        
ESP 0.004 0.004 -3.113 3.113


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.056 5.699 0.000
y 5.699 -37.579 0.000
z 0.000 0.000 -35.281
Traceless
 xyz
x 3.375 5.699 0.000
y 5.699 -3.411 0.000
z 0.000 0.000 0.036
Polar
3z2-r20.073
x2-y24.524
xy5.699
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.941 0.183 0.000
y 0.183 5.545 0.000
z 0.000 0.000 4.980


<r2> (average value of r2) Å2
<r2> 105.840
(<r2>)1/2 10.288