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

using model chemistry: BLYP/STO-3G

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/STO-3G
 hartrees
Energy at 0K-691.303122
Energy at 298.15K-691.305923
Nuclear repulsion energy247.802453
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/STO-3G
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 3415 3160 0.23      
2 A 1136 1051 16.19      
3 A 883 817 36.12      
4 A 567 524 26.76      
5 A 271 251 31.45      
6 A 237 219 1.84      
7 A 162 150 2.20      
8 A 132 122 16.79      
9 B 3418 3162 77.67      
10 B 1196 1106 24.46      
11 B 981 908 24.17      
12 B 607 562 94.21      
13 B 261 241 28.43      
14 B 254 235 10.05      
15 B 212 197 7.77      

Unscaled Zero Point Vibrational Energy (zpe) 6866.0 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 6352.4 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/STO-3G
ABC
0.12625 0.11936 0.11585

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.220
O2 0.000 1.473 0.929
O3 0.000 -1.473 0.929
O4 1.465 0.006 -1.021
O5 -1.465 -0.006 -1.021
H6 -1.614 -1.053 -1.033
H7 1.614 1.053 -1.033

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.63461.63461.91981.91982.29912.2991
O21.63462.94552.84632.85203.58292.5757
O31.63462.94552.85202.84632.57573.5829
O41.91982.84632.85202.92953.25581.0580
O51.91982.85202.84632.92951.05803.2558
H62.29913.58292.57573.25581.05803.8544
H72.29912.57573.58291.05803.25583.8544

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 96.796 S1 O5 H6 96.796
O2 S1 O3 128.577 O2 S1 O4 106.130
O2 S1 O5 106.444 O3 S1 O4 106.444
O3 S1 O5 106.130 O4 S1 O5 99.454
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.735      
2 O -0.270      
3 O -0.270      
4 O -0.231      
5 O -0.231      
6 H 0.133      
7 H 0.133      


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 -0.532 0.532
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.496 3.489 0.000
y 3.489 -32.121 0.000
z 0.000 0.000 -32.376
Traceless
 xyz
x 1.753 3.489 0.000
y 3.489 -0.686 0.000
z 0.000 0.000 -1.067
Polar
3z2-r2-2.134
x2-y21.626
xy3.489
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.963 0.837 0.000
y 0.837 4.519 0.000
z 0.000 0.000 3.355


<r2> (average value of r2) Å2
<r2> 129.642
(<r2>)1/2 11.386