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All results from a given calculation for HCP (Phosphaethyne)

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 C*V 1Σ
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-379.890087
Energy at 298.15K-379.890533
Nuclear repulsion energy36.258917
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 Σ 3402 3258 15.10      
2 Σ 1272 1218 0.46      
3 Π 704 674 101.84      
3 Π 704 674 101.79      

Unscaled Zero Point Vibrational Energy (zpe) 3041.1 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 2912.5 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
B
0.64440

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.023
H2 0.000 0.000 -2.097
P3 0.000 0.000 0.549

Atom - Atom Distances (Å)
  C1 H2 P3
C11.07441.5716
H21.07442.6460
P31.57162.6460

picture of Phosphaethyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 P3 180.000
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.446      
2 H 0.218      
3 P 0.228      


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 -0.932 0.932
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.491 0.000 0.000
y 0.000 -19.491 0.000
z 0.000 0.000 -16.136
Traceless
 xyz
x -1.678 0.000 0.000
y 0.000 -1.678 0.000
z 0.000 0.000 3.356
Polar
3z2-r26.711
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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 26.668
(<r2>)1/2 5.164