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All results from a given calculation for HCP (Phosphaethyne)

using model chemistry: CCD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at CCD/cc-pVDZ
 hartrees
Energy at 0K-379.388309
Energy at 298.15K-379.388754
Nuclear repulsion energy36.490725
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 CCD/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 3372 3226 14.86      
2 Σ 1321 1264 0.00      
3 Π 695 665 67.73      
3 Π 695 665 67.73      

Unscaled Zero Point Vibrational Energy (zpe) 3041.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 2909.4 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 CCD/cc-pVDZ
B
0.65328

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.013
H2 0.000 0.000 -2.099
P3 0.000 0.000 0.545

Atom - Atom Distances (Å)
  C1 H2 P3
C11.08621.5581
H21.08622.6443
P31.55812.6443

picture of Phosphaethyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 P3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability