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

using model chemistry: B3PW91/6-31G*

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*
 hartrees
Energy at 0K-252.373878
Energy at 298.15K-252.378510
Nuclear repulsion energy116.110374
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*
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' 3838 3672 0.00      
2 A' 1041 996 0.00      
3 A' 880 842 0.00      
4 A" 666 638 102.58      
5 A" 431 412 360.11      
6 E' 3838 3672 85.27      
6 E' 3838 3672 85.27      
7 E' 1485 1421 412.77      
7 E' 1485 1421 412.79      
8 E' 1036 992 185.46      
8 E' 1036 992 185.45      
9 E' 425 407 30.82      
9 E' 425 407 30.81      
10 E" 539 515 0.00      
10 E" 539 515 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 10751.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 10285.8 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*
ABC
0.33226 0.33226 0.16613

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

Point Group is C3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.000
O2 0.000 1.371 0.000
O3 -1.187 -0.685 0.000
O4 1.187 -0.685 0.000
H5 -0.903 1.712 0.000
H6 -1.031 -1.638 0.000
H7 1.934 -0.074 0.000

Atom - Atom Distances (Å)
  B1 O2 O3 O4 H5 H6 H7
B11.37061.37061.37061.93571.93571.9357
O21.37062.37402.37400.96553.18062.4142
O31.37062.37402.37402.41420.96553.1806
O41.37062.37402.37403.18062.41420.9655
H51.93570.96552.41423.18063.35283.3528
H61.93573.18060.96552.41423.35283.3528
H71.93572.41423.18060.96553.35283.3528

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 110.718 B1 O3 H6 110.718
B1 O4 H7 110.718 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* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.539      
2 O -0.604      
3 O -0.604      
4 O -0.604      
5 H 0.424      
6 H 0.424      
7 H 0.424      


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 -19.880 0.000 0.000
y 0.000 -19.880 0.000
z 0.000 0.000 -22.660
Traceless
 xyz
x 1.390 0.000 0.000
y 0.000 1.390 0.000
z 0.000 0.000 -2.780
Polar
3z2-r2-5.560
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 3.493 0.000 0.000
y 0.000 3.493 0.000
z 0.000 0.000 1.876


<r2> (average value of r2) Å2
<r2> 69.323
(<r2>)1/2 8.326