return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for CH2PH (Phosphaethene)

using model chemistry: mPW1PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G**
 hartrees
Energy at 0K-381.206632
Energy at 298.15K-381.209760
HF Energy-381.206632
Nuclear repulsion energy48.532896
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 mPW1PW91/6-31G**
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' 3277 3118 0.67      
2 A' 3180 3025 3.84      
3 A' 2383 2267 123.78      
4 A' 1473 1402 0.97      
5 A' 1049 998 36.52      
6 A' 1023 974 1.29      
7 A' 755 719 0.29      
8 A" 931 886 51.10      
9 A" 872 830 29.98      

Unscaled Zero Point Vibrational Energy (zpe) 7471.8 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 7109.4 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 mPW1PW91/6-31G**
ABC
4.63697 0.54879 0.49071

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.056 1.071 0.000
P2 0.056 -0.596 0.000
H3 -0.829 1.699 0.000
H4 1.005 1.600 0.000
H5 -1.359 -0.784 0.000

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5
C11.66721.08511.08642.3331
P21.66722.45992.39271.4279
H31.08512.45991.83642.5386
H41.08642.39271.83643.3576
H52.33311.42792.53863.3576

picture of Phosphaethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 P2 H5 97.541 P2 C1 H3 125.356
P2 C1 H4 119.162 H3 C1 H4 115.482
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.449      
2 P 0.150      
3 H 0.171      
4 H 0.169      
5 H -0.042      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.594 1.077 0.000 1.229
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.474 1.126 0.000
y 1.126 -19.153 0.000
z 0.000 0.000 -21.325
Traceless
 xyz
x 0.765 1.126 0.000
y 1.126 1.247 0.000
z 0.000 0.000 -2.011
Polar
3z2-r2-4.023
x2-y2-0.321
xy1.126
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.373 0.332 0.000
y 0.332 6.669 0.000
z 0.000 0.000 2.937


<r2> (average value of r2) Å2
<r2> 34.369
(<r2>)1/2 5.862