return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for H2SeO4 (Selenic 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 C2 1A
Energy calculated at B3LYP/6-31G**
 hartrees
Energy at 0K-2701.351638
Energy at 298.15K-2701.353886
HF Energy-2701.351638
Nuclear repulsion energy448.704892
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 3758 3611 22.35      
2 A 1090 1047 89.22      
3 A 954 917 52.85      
4 A 671 645 65.67      
5 A 347 334 73.48      
6 A 316 303 8.44      
7 A 252 242 4.53      
8 A 169 163 74.28      
9 B 3755 3608 194.00      
10 B 1133 1089 123.11      
11 B 1020 980 76.65      
12 B 688 661 144.44      
13 B 348 334 79.63      
14 B 321 308 34.72      
15 B 279 268 39.56      

Unscaled Zero Point Vibrational Energy (zpe) 7550.0 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 7254.0 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
0.13842 0.13011 0.12761

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)
Se1 0.000 0.000 0.131
O2 0.000 1.439 0.860
O3 0.000 -1.439 0.860
O4 1.354 -0.006 -1.007
O5 -1.354 0.006 -1.007
H6 1.646 -0.934 -1.049
H7 -1.646 0.934 -1.049

Atom - Atom Distances (Å)
  Se1 O2 O3 O4 O5 H6 H7
Se11.61311.61311.76891.76892.23022.2302
O21.61312.87802.72192.71543.46202.5706
O31.61312.87802.71542.72192.57063.4620
O41.76892.72192.71542.70780.97373.1437
O51.76892.71542.72192.70783.14370.9737
H62.23023.46202.57060.97373.14373.7845
H72.23022.57063.46203.14370.97373.7845

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 105.085 Se1 O5 H7 105.085
O2 Se1 O3 126.267 O2 Se1 O4 107.092
O2 Se1 O5 106.724 O3 Se1 O4 106.724
O3 Se1 O5 107.092 O4 Se1 O5 99.885
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 1.392      
2 O -0.521      
3 O -0.521      
4 O -0.525      
5 O -0.525      
6 H 0.350      
7 H 0.350      


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 -2.231 2.231
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.103 -6.107 0.000
y -6.107 -42.311 0.000
z 0.000 0.000 -41.516
Traceless
 xyz
x 5.810 -6.107 0.000
y -6.107 -3.502 0.000
z 0.000 0.000 -2.308
Polar
3z2-r2-4.617
x2-y26.208
xy-6.107
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.963 -0.450 0.000
y -0.450 5.717 0.000
z 0.000 0.000 4.782


<r2> (average value of r2) Å2
<r2> 125.447
(<r2>)1/2 11.200