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: CCSD=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-380.754186
Energy at 298.15K-380.757318
HF Energy-380.339059
Nuclear repulsion energy48.666631
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 CCSD=FULL/aug-cc-pVTZ
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' 3243 3084 0.37      
2 A' 3198 3042 3.84      
3 A' 2389 2272 86.75      
4 A' 1482 1409 2.26      
5 A' 1052 1001 24.21      
6 A' 1014 964 1.99      
7 A' 748 712 1.05      
8 A" 929 884 40.08      
9 A" 863 821 24.38      

Unscaled Zero Point Vibrational Energy (zpe) 7459.2 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 7093.7 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 CCSD=FULL/aug-cc-pVTZ
ABC
4.69336 0.55040 0.49263

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.056 1.069 0.000
P2 0.056 -0.595 0.000
H3 -0.825 1.688 0.000
H4 0.996 1.596 0.000
H5 -1.352 -0.770 0.000

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5
C11.66411.07691.07802.3162
P21.66412.44762.38441.4189
H31.07692.44761.82342.5145
H41.07802.38441.82343.3337
H52.31621.41892.51453.3337

picture of Phosphaethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 P2 H5 97.082 P2 C1 H3 125.124
P2 C1 H4 119.278 H3 C1 H4 115.598
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability