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 H3BO3 (Boric acid)

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3H 1A'
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-252.411628
Energy at 298.15K-252.416279
Nuclear repulsion energy116.458431
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 B3PW91/6-31G(2df,p)
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' 3905 3754 0.00      
2 A' 1026 986 0.00      
3 A' 885 850 0.00      
4 A" 673 647 80.45      
5 A" 436 419 303.27      
6 E' 3904 3753 95.71      
6 E' 3904 3753 95.71      
7 E' 1478 1421 363.87      
7 E' 1478 1421 363.92      
8 E' 1026 986 174.60      
8 E' 1026 986 174.59      
9 E' 425 409 27.05      
9 E' 425 409 27.05      
10 E" 533 513 0.00      
10 E" 533 513 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 10828.1 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 10410.1 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 B3PW91/6-31G(2df,p)
ABC
0.33400 0.33400 0.16700

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is C3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.000
O2 0.000 1.366 0.000
O3 -1.183 -0.683 0.000
O4 1.183 -0.683 0.000
H5 -0.891 1.721 0.000
H6 -1.044 -1.632 0.000
H7 1.936 -0.088 0.000

Atom - Atom Distances (Å)
  B1 O2 O3 O4 H5 H6 H7
B11.36641.36641.36641.93771.93771.9377
O21.36642.36672.36670.95923.17532.4214
O31.36642.36672.36672.42140.95923.1753
O41.36642.36672.36673.17532.42140.9592
H51.93770.95922.42143.17533.35633.3563
H61.93773.17530.95922.42143.35633.3563
H71.93772.42143.17530.95923.35633.3563

picture of Boric acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 O2 H5 111.665 B1 O3 H6 111.665
B1 O4 H7 111.665 O2 B1 O3 120.000
O2 B1 O4 120.000 O3 B1 O4 120.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.095      
2 O -0.354      
3 O -0.354      
4 O -0.354      
5 H 0.322      
6 H 0.322      
7 H 0.322      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.736 0.000 0.000
y 0.000 -19.736 0.000
z 0.000 0.000 -22.509
Traceless
 xyz
x 1.386 0.000 0.000
y 0.000 1.386 0.000
z 0.000 0.000 -2.773
Polar
3z2-r2-5.545
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.776 0.000 0.000
y 0.000 3.776 0.000
z 0.000 0.000 2.348


<r2> (average value of r2) Å2
<r2> 68.978
(<r2>)1/2 8.305