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

using model chemistry: B3LYP/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-74.919673
Energy at 298.15K-74.923346
Nuclear repulsion energy100.735621
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/CEP-121G
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 3546 3456 61.73      
2 A 1109 1081 26.82      
3 A 810 789 119.86      
4 A 589 574 66.85      
5 A 335 326 97.15      
6 A 310 302 35.59      
7 A 228 222 7.03      
8 A 175 170 44.51      
9 B 3543 3453 116.24      
10 B 1165 1135 71.59      
11 B 888 866 64.59      
12 B 643 627 197.70      
13 B 320 312 4.01      
14 B 306 298 67.64      
15 B 222 216 89.79      

Unscaled Zero Point Vibrational Energy (zpe) 7093.9 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 6913.0 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/CEP-121G
ABC
0.12957 0.12809 0.12509

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.249
O2 0.000 1.442 1.000
O3 0.000 -1.442 1.000
O4 1.387 -0.063 -0.923
O5 -1.387 0.063 -0.923
H6 -1.586 -0.866 -1.209
H7 1.586 0.866 -1.209

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.62531.62531.81701.81702.32212.3221
O21.62532.88352.80802.74213.56662.7794
O31.62532.88352.74212.80802.77943.5666
O41.81702.80802.74212.77733.09280.9929
O51.81702.74212.80802.77730.99293.0928
H62.32213.56662.77943.09280.99293.6139
H72.32212.77943.56660.99293.09283.6139

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 107.831 S1 O5 H6 107.831
O2 S1 O3 125.012 O2 S1 O4 109.189
O2 S1 O5 105.472 O3 S1 O4 105.472
O3 S1 O5 109.189 O4 S1 O5 99.681
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.983      
2 O -0.379      
3 O -0.379      
4 O -0.503      
5 O -0.503      
6 H 0.391      
7 H 0.391      


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 -2.938 2.938
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.440 7.013 0.000
y 7.013 -39.276 0.000
z 0.000 0.000 -36.687
Traceless
 xyz
x 3.541 7.013 0.000
y 7.013 -3.713 0.000
z 0.000 0.000 0.171
Polar
3z2-r20.343
x2-y24.836
xy7.013
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.924 0.279 0.000
y 0.279 6.658 0.000
z 0.000 0.000 6.007


<r2> (average value of r2) Å2
<r2> 103.101
(<r2>)1/2 10.154