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All results from a given calculation for P2H4 (Diphosphine)

using model chemistry: MP2/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2/aug-cc-pVTZ
 hartrees
Energy at 0K-684.152486
Energy at 298.15K-684.157796
Nuclear repulsion energy88.726171
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 MP2/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 2476 2359 44.77      
2 A 2464 2348 9.47      
3 A 1133 1080 10.62      
4 A 887 845 0.00      
5 A 651 620 5.70      
6 A 454 432 0.91      
7 A 213 203 2.49      
8 B 2480 2363 60.64      
9 B 2460 2344 17.08      
10 B 1123 1070 27.41      
11 B 817 778 44.61      
12 B 628 598 9.64      

Unscaled Zero Point Vibrational Energy (zpe) 7892.2 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 7520.5 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 MP2/aug-cc-pVTZ
ABC
2.19950 0.19405 0.19349

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 1.110 -0.086
P2 0.000 -1.110 -0.086
H3 -0.205 1.347 1.291
H4 1.405 1.222 -0.000
H5 0.205 -1.347 1.291
H6 -1.405 -1.222 -0.000

Atom - Atom Distances (Å)
  P1 P2 H3 H4 H5 H6
P12.22101.41221.41232.82452.7246
P22.22102.82452.72461.41221.4123
H31.41222.82452.06832.72513.1158
H41.41232.72462.06833.11583.7248
H52.82451.41222.72513.11582.0683
H62.72461.41233.11583.72482.0683

picture of Diphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 P2 H5 99.641 P1 P2 H6 94.536
P2 P1 H3 99.641 P2 P1 H4 94.536
H3 P1 H4 94.152 H5 P2 H6 94.152
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability