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 CH2PH (Phosphaethene)

using model chemistry: HF/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/SDD
 hartrees
Energy at 0K-380.238377
Energy at 298.15K-380.241598
HF Energy-380.238377
Nuclear repulsion energy48.295652
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 HF/SDD
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' 3454 3110 4.25      
2 A' 3343 3010 8.35      
3 A' 2366 2130 150.17      
4 A' 1612 1451 5.84      
5 A' 1148 1034 43.17      
6 A' 1055 950 0.68      
7 A' 851 767 2.52      
8 A" 1059 954 114.48      
9 A" 939 846 17.90      

Unscaled Zero Point Vibrational Energy (zpe) 7913.4 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 7125.2 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 HF/SDD
ABC
4.69896 0.53949 0.48393

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.057 1.083 0.000
P2 0.057 -0.599 0.000
H3 -0.825 1.695 0.000
H4 0.989 1.617 0.000
H5 -1.356 -0.826 0.000

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5
C11.68191.07371.07412.3751
P21.68192.45802.40401.4314
H31.07372.45801.81562.5766
H41.07412.40401.81563.3864
H52.37511.43142.57663.3864

picture of Phosphaethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 P2 H5 99.121 P2 C1 H3 124.772
P2 C1 H4 119.821 H3 C1 H4 115.408
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.805      
2 P 0.431      
3 H 0.233      
4 H 0.234      
5 H -0.093      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.685 1.083 0.000 1.281
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.672 1.259 0.000
y 1.259 -20.240 0.000
z 0.000 0.000 -22.403
Traceless
 xyz
x 0.650 1.259 0.000
y 1.259 1.297 0.000
z 0.000 0.000 -1.947
Polar
3z2-r2-3.894
x2-y2-0.432
xy1.259
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.209 0.475 0.000
y 0.475 7.631 0.000
z 0.000 0.000 2.259


<r2> (average value of r2) Å2
<r2> 35.338
(<r2>)1/2 5.945