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: B3LYP/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/cc-pVQZ
 hartrees
Energy at 0K-381.279418
Energy at 298.15K-381.282539
HF Energy-381.279418
Nuclear repulsion energy48.637433
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 B3LYP/cc-pVQZ
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' 3216 3115 0.62      
2 A' 3128 3030 4.75      
3 A' 2326 2254 95.08      
4 A' 1454 1409 2.29      
5 A' 1038 1006 23.94      
6 A' 1004 973 1.43      
7 A' 750 726 0.50      
8 A" 916 888 43.34      
9 A" 862 835 23.51      

Unscaled Zero Point Vibrational Energy (zpe) 7347.0 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 7117.8 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 B3LYP/cc-pVQZ
ABC
4.66227 0.55101 0.49277

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.056 1.069 0.000
P2 0.056 -0.594 0.000
H3 -0.828 1.692 0.000
H4 1.001 1.599 0.000
H5 -1.356 -0.792 0.000

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5
C11.66361.08111.08292.3367
P21.66362.45102.38831.4264
H31.08112.45101.83052.5394
H41.08292.38831.83053.3576
H52.33671.42642.53943.3576

picture of Phosphaethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 P2 H5 97.966 P2 C1 H3 125.155
P2 C1 H4 119.307 H3 C1 H4 115.538
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.425      
2 P 0.238      
3 H 0.119      
4 H 0.112      
5 H -0.043      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.449 0.771 0.000 0.892
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.005 0.997 0.000
y 0.997 -19.580 0.000
z 0.000 0.000 -21.808
Traceless
 xyz
x 0.689 0.997 0.000
y 0.997 1.326 0.000
z 0.000 0.000 -2.015
Polar
3z2-r2-4.030
x2-y2-0.425
xy0.997
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.386 0.266 0.000
y 0.266 7.605 0.000
z 0.000 0.000 4.190


<r2> (average value of r2) Å2
<r2> 34.580
(<r2>)1/2 5.880