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All results from a given calculation for H3BO3 (Boric acid)

using model chemistry: B3PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3H 1A'
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-252.410835
Energy at 298.15K-252.415479
Nuclear repulsion energy116.054259
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 B3PW91/6-31+G**
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 3749 0.00      
2 A' 1016 975 0.00      
3 A' 878 843 0.00      
4 A" 671 644 101.75      
5 A" 440 422 361.89      
6 E' 3904 3749 112.61      
6 E' 3904 3749 112.61      
7 E' 1458 1400 460.38      
7 E' 1458 1400 460.41      
8 E' 1012 972 174.58      
8 E' 1012 972 174.57      
9 E' 424 407 33.11      
9 E' 424 407 33.10      
10 E" 539 517 0.00      
10 E" 539 517 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 10791.5 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 10361.0 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 B3PW91/6-31+G**
ABC
0.33172 0.33172 0.16586

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is C3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.000
O2 0.000 1.370 0.000
O3 -1.187 -0.685 0.000
O4 1.187 -0.685 0.000
H5 -0.891 1.736 0.000
H6 -1.058 -1.639 0.000
H7 1.949 -0.097 0.000

Atom - Atom Distances (Å)
  B1 O2 O3 O4 H5 H6 H7
B11.37051.37051.37051.95111.95111.9511
O21.37052.37382.37380.96273.19042.4393
O31.37052.37382.37382.43930.96273.1904
O41.37052.37382.37383.19042.43930.9627
H51.95110.96272.43933.19043.37953.3795
H61.95113.19040.96272.43933.37953.3795
H71.95112.43933.19040.96273.37953.3795

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 112.315 B1 O3 H6 112.315
B1 O4 H7 112.315 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 B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.929      
2 O -0.685      
3 O -0.685      
4 O -0.685      
5 H 0.376      
6 H 0.376      
7 H 0.376      


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 -20.911 0.000 0.000
y 0.000 -20.911 0.000
z 0.000 0.000 -23.574
Traceless
 xyz
x 1.332 0.000 0.000
y 0.000 1.332 0.000
z 0.000 0.000 -2.664
Polar
3z2-r2-5.327
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 4.141 0.000 0.000
y 0.000 4.141 0.000
z 0.000 0.000 2.788


<r2> (average value of r2) Å2
<r2> 70.114
(<r2>)1/2 8.373