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: B2PLYP/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 B2PLYP/3-21G*
 hartrees
Energy at 0K-379.149791
Energy at 298.15K-379.152950
HF Energy-379.081471
Nuclear repulsion energy48.468816
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 B2PLYP/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' 3249 3249 1.87      
2 A' 3163 3163 5.03      
3 A' 2419 2419 103.63      
4 A' 1530 1530 0.69      
5 A' 1088 1088 36.58      
6 A' 1019 1019 0.02      
7 A' 794 794 0.25      
8 A" 958 958 66.82      
9 A" 888 888 25.32      

Unscaled Zero Point Vibrational Energy (zpe) 7553.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7553.5 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 B2PLYP/3-21G*
ABC
4.66028 0.54602 0.48875

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.056 1.074 0.000
P2 0.056 -0.598 0.000
H3 -0.830 1.699 0.000
H4 1.001 1.610 0.000
H5 -1.354 -0.782 0.000

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5
C11.67161.08491.08632.3305
P21.67162.46192.40121.4223
H31.08492.46191.83382.5351
H41.08632.40121.83383.3564
H52.33051.42232.53513.3564

picture of Phosphaethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 P2 H5 97.422 P2 C1 H3 125.184
P2 C1 H4 119.559 H3 C1 H4 115.256
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.596      
2 P 0.185      
3 H 0.213      
4 H 0.208      
5 H -0.010      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.548 0.990 0.000 1.132
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.858 1.077 0.000
y 1.077 -19.454 0.000
z 0.000 0.000 -21.501
Traceless
 xyz
x 0.619 1.077 0.000
y 1.077 1.225 0.000
z 0.000 0.000 -1.845
Polar
3z2-r2-3.689
x2-y2-0.404
xy1.077
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.117 0.358 0.000
y 0.358 6.149 0.000
z 0.000 0.000 2.399


<r2> (average value of r2) Å2
<r2> 34.620
(<r2>)1/2 5.884