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

using model chemistry: B3LYP/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-700.410388
Energy at 298.15K-700.415385
Nuclear repulsion energy286.750539
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/cc-pVTZ
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 3760 3635 44.75      
2 A 1196 1156 162.48      
3 A 1154 1116 75.92      
4 A 794 767 107.82      
5 A 525 508 38.67      
6 A 421 407 13.77      
7 A 359 347 1.39      
8 A 230 222 105.06      
9 B 3756 3631 200.25      
10 B 1445 1397 271.30      
11 B 1167 1128 84.59      
12 B 851 823 331.36      
13 B 534 516 24.43      
14 B 480 464 41.22      
15 B 307 296 57.75      

Unscaled Zero Point Vibrational Energy (zpe) 8489.7 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 8206.2 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/cc-pVTZ
ABC
0.16658 0.16318 0.15731

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.160
O2 0.000 1.267 0.831
O3 0.000 -1.267 0.831
O4 1.248 -0.044 -0.854
O5 -1.248 0.044 -0.854
H6 -1.473 -0.865 -1.103
H7 1.473 0.865 -1.103

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.43401.43401.60911.60912.12462.1246
O21.43402.53442.47332.42833.23402.4642
O31.43402.53442.42832.47332.46423.2340
O41.60912.47332.42832.49822.85370.9688
O51.60912.42832.47332.49820.96882.8537
H62.12463.23402.46422.85370.96883.4170
H72.12462.46423.23400.96882.85373.4170

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 108.445 S1 O5 H6 108.445
O2 S1 O3 124.182 O2 S1 O4 108.600
O2 S1 O5 105.733 O3 S1 O4 105.733
O3 S1 O5 108.600 O4 S1 O5 101.847
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.009     0.988
2 O -0.423     -0.423
3 O -0.423     -0.423
4 O -0.312     -0.496
5 O -0.312     -0.495
6 H 0.230     0.423
7 H 0.230     0.425


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 -3.071 3.071
CHELPG        
AIM        
ESP 0.004 0.004 -3.044 3.044


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.754 5.346 0.000
y 5.346 -36.625 0.000
z 0.000 0.000 -34.664
Traceless
 xyz
x 3.891 5.346 0.000
y 5.346 -3.416 0.000
z 0.000 0.000 -0.474
Polar
3z2-r2-0.949
x2-y24.871
xy5.346
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.523 0.271 0.000
y 0.271 5.051 0.000
z 0.000 0.000 4.482


<r2> (average value of r2) Å2
<r2> 103.520
(<r2>)1/2 10.174