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All results from a given calculation for H3PO4 (Phosphoric Acid)

using model chemistry: B1B95/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3 1A
Energy calculated at B1B95/aug-cc-pVDZ
 hartrees
Energy at 0K-644.146641
Energy at 298.15K-644.152478
HF Energy-644.146641
Nuclear repulsion energy276.830168
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 B1B95/aug-cc-pVDZ
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 3868 3706 18.97      
2 A 1284 1230 313.92      
3 A 1064 1020 72.09      
4 A 815 781 13.83      
5 A 430 412 22.77      
6 A 301 288 76.83      
7 E 3866 3703 177.83      
7 E 3866 3703 177.78      
8 E 1063 1019 69.11      
8 E 1063 1019 69.16      
9 E 921 883 295.67      
9 E 921 882 295.54      
10 E 428 410 62.00      
10 E 428 410 61.99      
11 E 359 344 45.06      
11 E 359 344 45.07      
12 E 156 149 60.61      
12 E 156 149 60.61      

Unscaled Zero Point Vibrational Energy (zpe) 10674.3 cm-1
Scaled (by 0.9579) Zero Point Vibrational Energy (zpe) 10224.9 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 B1B95/aug-cc-pVDZ
ABC
0.14799 0.14450 0.14450

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/aug-cc-pVDZ

Point Group is C3

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.124
O2 0.000 0.000 1.614
O3 0.000 1.444 -0.604
O4 1.250 -0.722 -0.604
O5 -1.250 -0.722 -0.604
H6 0.508 2.082 -0.091
H7 1.549 -1.481 -0.091
H8 -2.057 -0.601 -0.091

Atom - Atom Distances (Å)
  P1 O2 O3 O4 O5 H6 H7 H8
P11.48991.61731.61731.61732.15402.15402.1540
O21.48992.64702.64702.64702.73902.73902.7390
O31.61732.64702.50072.50070.96383.34932.9454
O41.61732.64702.50072.50072.94540.96383.3493
O51.61732.64702.50072.50073.34932.94540.9638
H62.15402.73900.96382.94543.34933.71203.7120
H72.15402.73903.34930.96382.94543.71203.7120
H82.15402.73902.94543.34930.96383.71203.7120

picture of Phosphoric Acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 O3 H6 110.569 P1 O4 H7 110.569
P1 O5 H8 110.569 O2 P1 O3 116.783
O2 P1 O4 116.783 O2 P1 O5 116.783
O3 P1 O4 101.269 O3 P1 O5 101.269
O4 P1 O5 101.269
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 1.861      
2 O -0.709      
3 O -0.501      
4 O -0.501      
5 O -0.501      
6 H 0.117      
7 H 0.117      
8 H 0.117      


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 -0.380 0.380
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.171 0.000 0.000
y 0.000 -29.171 0.000
z 0.000 0.000 -44.609
Traceless
 xyz
x 7.719 0.000 0.000
y 0.000 7.719 0.000
z 0.000 0.000 -15.438
Polar
3z2-r2-30.877
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 5.732 -0.000 -0.000
y -0.000 5.733 0.000
z -0.000 0.000 5.759


<r2> (average value of r2) Å2
<r2> 115.110
(<r2>)1/2 10.729