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All results from a given calculation for HCP (Phosphaethyne)

using model chemistry: CCSD/aug-cc-pVTZ

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 CCSD/aug-cc-pVTZ
 hartrees
Energy at 0K-379.468093
Energy at 298.15K-379.468544
HF Energy-379.151075
Nuclear repulsion energy36.850531
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/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 Σ 3366 3217 14.90      
2 Σ 1328 1270 0.07      
3 Π 699 668 72.06      
3 Π 699 668 72.06      

Unscaled Zero Point Vibrational Energy (zpe) 3046.3 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 2911.6 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/aug-cc-pVTZ
B
0.66608

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.002
H2 0.000 0.000 -2.073
P3 0.000 0.000 0.539

Atom - Atom Distances (Å)
  C1 H2 P3
C11.07061.5416
H21.07062.6122
P31.54162.6122

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