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

using model chemistry: B3LYP/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 B3LYP/6-31G*
 hartrees
Energy at 0K-700.203055
Energy at 298.15K-700.207928
Nuclear repulsion energy283.941354
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/6-31G*
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 3695 3549 39.60      
2 A 1183 1136 61.94      
3 A 1174 1128 189.87      
4 A 779 748 107.85      
5 A 513 492 45.62      
6 A 411 394 23.06      
7 A 344 330 4.78      
8 A 228 219 106.58      
9 B 3692 3545 169.74      
10 B 1442 1385 265.48      
11 B 1186 1138 97.24      
12 B 845 812 330.26      
13 B 511 491 24.69      
14 B 466 447 48.58      
15 B 301 289 66.00      

Unscaled Zero Point Vibrational Energy (zpe) 8383.8 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 8051.0 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/6-31G*
ABC
0.16320 0.16014 0.15415

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.166
O2 0.000 1.281 0.837
O3 0.000 -1.281 0.837
O4 1.261 -0.044 -0.863
O5 -1.261 0.044 -0.863
H6 -1.473 -0.875 -1.116
H7 1.473 0.875 -1.116

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.44631.44631.62841.62842.13992.1399
O21.44632.56222.49782.45183.26082.4800
O31.44632.56222.45182.49782.48003.2608
O41.62842.49782.45182.52372.86890.9766
O51.62842.45182.49782.52370.97662.8689
H62.13993.26082.48002.86890.97663.4271
H72.13992.48003.26080.97662.86893.4271

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 107.829 S1 O5 H6 107.829
O2 S1 O3 124.696 O2 S1 O4 108.515
O2 S1 O5 105.614 O3 S1 O4 105.614
O3 S1 O5 108.515 O4 S1 O5 101.592
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.270 1.038 3.661 0.938
2 O -0.476 -0.432 -1.298 -0.402
3 O -0.476 -0.432 -1.298 -0.402
4 O -0.608 -0.531 -1.135 -0.516
5 O -0.608 -0.531 -1.135 -0.514
6 H 0.448 0.443 0.602 0.447
7 H 0.448 0.443 0.602 0.448


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 -3.030 3.030
CHELPG 0.000 0.000 -2.994 2.994
AIM 0.000 0.000 0.584 0.584
ESP 0.001 0.004 -3.009 3.009


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.911 5.719 0.000
y 5.719 -36.313 0.000
z 0.000 0.000 -34.486
Traceless
 xyz
x 3.489 5.719 0.000
y 5.719 -3.115 0.000
z 0.000 0.000 -0.374
Polar
3z2-r2-0.748
x2-y24.402
xy5.719
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.009 0.314 0.000
y 0.314 4.593 0.000
z 0.000 0.000 3.962


<r2> (average value of r2) Å2
<r2> 105.061
(<r2>)1/2 10.250