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/6-31G**

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/6-31G**
 hartrees
Energy at 0K-380.292944
Energy at 298.15K-380.296157
HF Energy-380.292944
Nuclear repulsion energy48.993889
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/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 A' 3405 3074 1.39      
2 A' 3314 2991 7.40      
3 A' 2532 2286 159.42      
4 A' 1598 1443 0.63      
5 A' 1135 1025 43.50      
6 A' 1092 985 1.34      
7 A' 811 732 1.62      
8 A" 1037 936 64.33      
9 A" 949 856 22.46      

Unscaled Zero Point Vibrational Energy (zpe) 7936.5 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 7163.5 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 HF/6-31G**
ABC
4.75829 0.55845 0.49979

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.056 1.062 0.000
P2 0.056 -0.589 0.000
H3 -0.826 1.678 0.000
H4 0.992 1.593 0.000
H5 -1.338 -0.808 0.000

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5
C11.65131.07551.07682.3325
P21.65132.43272.37491.4106
H31.07552.43271.82032.5387
H41.07682.37491.82033.3463
H52.33251.41062.53873.3463

picture of Phosphaethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 P2 H5 98.942 P2 C1 H3 124.944
P2 C1 H4 119.554 H3 C1 H4 115.502
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.444      
2 P 0.220      
3 H 0.163      
4 H 0.160      
5 H -0.100      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.614 1.135 0.000 1.290
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.097 1.234 0.000
y 1.234 -19.483 0.000
z 0.000 0.000 -21.749
Traceless
 xyz
x 0.519 1.234 0.000
y 1.234 1.439 0.000
z 0.000 0.000 -1.959
Polar
3z2-r2-3.917
x2-y2-0.613
xy1.234
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.249 0.398 0.000
y 0.398 7.066 0.000
z 0.000 0.000 2.946


<r2> (average value of r2) Å2
<r2> 34.273
(<r2>)1/2 5.854