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: wB97X-D/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-379.330119
Energy at 298.15K-379.333289
HF Energy-379.330119
Nuclear repulsion energy48.680390
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 wB97X-D/3-21G*
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' 3257 3087 0.49      
2 A' 3169 3004 2.66      
3 A' 2345 2223 99.89      
4 A' 1514 1435 2.76      
5 A' 1087 1031 38.00      
6 A' 1056 1001 0.13      
7 A' 798 757 0.20      
8 A" 972 921 91.04      
9 A" 893 846 15.46      

Unscaled Zero Point Vibrational Energy (zpe) 7546.0 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 7152.1 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 wB97X-D/3-21G*
ABC
4.64893 0.55298 0.49419

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.057 1.065 0.000
P2 0.057 -0.594 0.000
H3 -0.832 1.691 0.000
H4 1.003 1.601 0.000
H5 -1.358 -0.772 0.000

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5
C11.65901.08671.08792.3183
P21.65902.45152.39041.4256
H31.08672.45151.83742.5181
H41.08792.39041.83743.3473
H52.31831.42562.51813.3473

picture of Phosphaethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 P2 H5 97.162 P2 C1 H3 125.161
P2 C1 H4 119.510 H3 C1 H4 115.328
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.660      
2 P 0.186      
3 H 0.239      
4 H 0.234      
5 H 0.002      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.581 1.001 0.000 1.157
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.600 1.112 0.000
y 1.112 -19.219 0.000
z 0.000 0.000 -21.447
Traceless
 xyz
x 0.733 1.112 0.000
y 1.112 1.304 0.000
z 0.000 0.000 -2.038
Polar
3z2-r2-4.075
x2-y2-0.381
xy1.112
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.162 0.379 0.000
y 0.379 6.299 0.000
z 0.000 0.000 2.427


<r2> (average value of r2) Å2
<r2> 34.302
(<r2>)1/2 5.857