return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for PBr3 (Phosphorus tribromide)

using model chemistry: B3LYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3LYP/cc-pVTZ
 hartrees
Energy at 0K-8064.145762
Energy at 298.15K-8064.154792
HF Energy-8064.145762
Nuclear repulsion energy923.511600
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 B3LYP/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 380 367 11.11      
2 A1 154 149 0.02      
3 E 378 366 107.41      
3 E 378 366 107.42      
4 E 106 103 0.02      
4 E 106 103 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 751.2 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 726.1 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 B3LYP/cc-pVTZ
ABC
0.03288 0.03288 0.01737

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.878
Br2 0.000 2.024 -0.125
Br3 1.753 -1.012 -0.125
Br4 -1.753 -1.012 -0.125

Atom - Atom Distances (Å)
  P1 Br2 Br3 Br4
P12.25932.25932.2593
Br22.25933.50643.5064
Br32.25933.50643.5064
Br42.25933.50643.5064

picture of Phosphorus tribromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 P1 Br3 101.789 Br2 P1 Br4 101.789
Br3 P1 Br4 101.789
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.310      
2 Br -0.103      
3 Br -0.103      
4 Br -0.103      


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 0.549 0.549
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -67.612 0.000 0.000
y 0.000 -67.612 0.000
z 0.000 0.000 -67.239
Traceless
 xyz
x -0.187 0.000 0.000
y 0.000 -0.187 0.000
z 0.000 0.000 0.374
Polar
3z2-r20.748
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 14.398 0.000 0.000
y 0.000 14.397 0.000
z 0.000 0.000 8.723


<r2> (average value of r2) Å2
<r2> 485.684
(<r2>)1/2 22.038