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All results from a given calculation for H2SeO4 (Selenic acid)

using model chemistry: PBEPBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBE/6-311G**
 hartrees
Energy at 0K-2702.930948
Energy at 298.15K-2702.932987
HF Energy-2702.930948
Nuclear repulsion energy442.548774
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 PBEPBE/6-311G**
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 3645 3612 30.52      
2 A 1058 1048 65.59      
3 A 892 884 53.00      
4 A 595 589 65.63      
5 A 327 324 75.22      
6 A 306 303 1.62      
7 A 229 227 0.03      
8 A 172 170 71.73      
9 B 3642 3609 160.49      
10 B 1098 1088 93.56      
11 B 963 955 85.31      
12 B 609 604 137.16      
13 B 329 326 55.31      
14 B 311 308 44.51      
15 B 260 258 27.04      

Unscaled Zero Point Vibrational Energy (zpe) 7217.7 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 7152.1 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 PBEPBE/6-311G**
ABC
0.13278 0.12849 0.12328

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.142
O2 0.000 1.455 0.858
O3 0.000 -1.455 0.858
O4 1.393 0.026 -1.017
O5 -1.393 -0.026 -1.017
H6 1.619 -0.920 -1.137
H7 -1.619 0.920 -1.137

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.62131.62131.81161.81162.25932.2593
O21.62132.90912.73762.76493.49862.6246
O31.62132.90912.76492.73762.62463.4986
O41.81162.73762.76492.78600.97993.1443
O51.81162.76492.73762.78603.14430.9799
H62.25933.49862.62460.97993.14433.7248
H72.25932.62463.49863.14430.97993.7248

picture of Selenic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 O4 H6 104.049 Se1 O5 H7 104.049
O2 Se1 O3 127.573 O2 Se1 O4 105.641
O2 Se1 O5 107.171 O3 Se1 O4 107.171
O3 Se1 O5 105.641 O4 Se1 O5 100.513
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.046      
2 O -0.416      
3 O -0.416      
4 O -0.385      
5 O -0.385      
6 H 0.278      
7 H 0.278      


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 -2.217 2.217
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.534 -5.985 0.000
y -5.985 -42.519 0.000
z 0.000 0.000 -41.162
Traceless
 xyz
x 4.306 -5.985 0.000
y -5.985 -3.171 0.000
z 0.000 0.000 -1.135
Polar
3z2-r2-2.270
x2-y24.984
xy-5.985
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.556 -0.381 0.000
y -0.381 6.264 0.000
z 0.000 0.000 5.363


<r2> (average value of r2) Å2
<r2> 128.649
(<r2>)1/2 11.342