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

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3H 1A'
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-251.021793
Energy at 298.15K-251.026357
Nuclear repulsion energy114.571102
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 mPW1PW91/3-21G*
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' 3672 3487 0.00      
2 A' 1004 953 0.02      
3 A' 887 842 0.00      
4 A" 653 620 203.34      
5 A" 428 406 426.28      
6 E' 3674 3489 63.15      
6 E' 3674 3489 63.18      
7 E' 1533 1456 340.99      
7 E' 1533 1456 340.99      
8 E' 1004 953 258.69      
8 E' 1004 953 258.66      
9 E' 414 393 37.18      
9 E' 414 393 37.18      
10 E" 512 486 0.00      
10 E" 512 486 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 10457.2 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 9930.2 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 mPW1PW91/3-21G*
ABC
0.32390 0.32390 0.16195

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is C3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.000
O2 0.000 1.384 0.000
O3 -1.199 -0.692 0.000
O4 1.199 -0.692 0.000
H5 -0.893 1.794 0.000
H6 -1.107 -1.671 0.000
H7 2.000 -0.123 0.000

Atom - Atom Distances (Å)
  B1 O2 O3 O4 H5 H6 H7
B11.38431.38431.38432.00412.00412.0041
O21.38432.39762.39760.98273.24922.5049
O31.38432.39762.39762.50490.98273.2492
O41.38432.39762.39763.24922.50490.9827
H52.00410.98272.50493.24923.47123.4712
H62.00413.24920.98272.50493.47123.4712
H72.00412.50493.24920.98273.47123.4712

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 114.644 B1 O3 H6 114.644
B1 O4 H7 114.644 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 mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.751      
2 O -0.636      
3 O -0.636      
4 O -0.636      
5 H 0.385      
6 H 0.385      
7 H 0.385      


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 -19.519 0.000 0.000
y 0.000 -19.519 0.000
z 0.000 0.000 -22.426
Traceless
 xyz
x 1.454 0.000 0.000
y 0.000 1.454 0.000
z 0.000 0.000 -2.907
Polar
3z2-r2-5.814
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 3.240 0.000 0.000
y 0.000 3.240 0.000
z 0.000 0.000 1.245


<r2> (average value of r2) Å2
<r2> 70.833
(<r2>)1/2 8.416