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

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3H 1A'
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-250.991377
Energy at 298.15K-250.995913
Nuclear repulsion energy114.377621
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 B3PW91/3-21G*
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' 3643 3495 0.00      
2 A' 998 958 0.00      
3 A' 880 844 0.00      
4 A" 646 620 184.05      
5 A" 421 404 431.00      
6 E' 3645 3497 54.76      
6 E' 3645 3497 54.77      
7 E' 1521 1460 331.06      
7 E' 1521 1460 331.06      
8 E' 997 957 257.30      
8 E' 997 957 257.30      
9 E' 412 395 36.55      
9 E' 412 395 36.55      
10 E" 506 486 0.00      
10 E" 506 486 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 10375.5 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9954.2 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 B3PW91/3-21G*
ABC
0.32283 0.32283 0.16142

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.000
O2 0.000 1.387 0.000
O3 -1.201 -0.693 0.000
O4 1.201 -0.693 0.000
H5 -0.896 1.795 0.000
H6 -1.107 -1.673 0.000
H7 2.003 -0.122 0.000

Atom - Atom Distances (Å)
  B1 O2 O3 O4 H5 H6 H7
B11.38671.38671.38672.00622.00622.0062
O21.38672.40182.40180.98463.25402.5070
O31.38672.40182.40182.50700.98463.2540
O41.38672.40182.40183.25402.50700.9846
H52.00620.98462.50703.25403.47493.4749
H62.00623.25400.98462.50703.47493.4749
H72.00622.50703.25400.98463.47493.4749

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 114.503 B1 O3 H6 114.503
B1 O4 H7 114.502 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 B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.730      
2 O -0.626      
3 O -0.626      
4 O -0.626      
5 H 0.382      
6 H 0.382      
7 H 0.382      


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 -19.494 0.000 0.000
y 0.000 -19.494 0.000
z 0.000 0.000 -22.447
Traceless
 xyz
x 1.477 0.000 0.000
y 0.000 1.477 0.000
z 0.000 0.000 -2.953
Polar
3z2-r2-5.906
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 3.291 0.000 0.000
y 0.000 3.291 0.000
z 0.000 0.000 1.261


<r2> (average value of r2) Å2
<r2> 71.013
(<r2>)1/2 8.427