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All results from a given calculation for CH2PH (Phosphaethene)

using model chemistry: HF/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-13.488567
Energy at 298.15K-13.491776
HF Energy-13.488567
Nuclear repulsion energy15.698879
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/CEP-121G
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' 3393 3096 3.26      
2 A' 3276 2990 4.80      
3 A' 2397 2187 172.38      
4 A' 1581 1443 3.95      
5 A' 1127 1028 49.20      
6 A' 1020 931 0.33      
7 A' 825 753 1.91      
8 A" 1039 948 111.86      
9 A" 921 841 15.67      

Unscaled Zero Point Vibrational Energy (zpe) 7789.3 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 7107.8 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 HF/CEP-121G
ABC
4.62619 0.53092 0.47626

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.057 1.093 0.000
P2 0.057 -0.604 0.000
H3 -0.827 1.707 0.000
H4 0.995 1.622 0.000
H5 -1.370 -0.824 0.000

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5
C11.69711.07691.07702.3898
P21.69712.47492.41601.4444
H31.07692.47491.82442.5886
H41.07702.41601.82443.4027
H52.38981.44442.58863.4027

picture of Phosphaethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 P2 H5 98.740 P2 C1 H3 124.784
P2 C1 H4 119.440 H3 C1 H4 115.776
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.577      
2 P 0.282      
3 H 0.195      
4 H 0.198      
5 H -0.098      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.766 1.284 0.000 1.496
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.621 1.370 0.000
y 1.370 -19.148 0.000
z 0.000 0.000 -21.552
Traceless
 xyz
x 0.728 1.370 0.000
y 1.370 1.439 0.000
z 0.000 0.000 -2.167
Polar
3z2-r2-4.334
x2-y2-0.474
xy1.370
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.697 0.447 0.000
y 0.447 8.035 0.000
z 0.000 0.000 3.188


<r2> (average value of r2) Å2
<r2> 28.968
(<r2>)1/2 5.382