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All results from a given calculation for P2H4 (Diphosphine)

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-685.049952
Energy at 298.15K-685.055088
Nuclear repulsion energy85.205895
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 B1B95/6-31G
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 2310 2203 62.62      
2 A 2284 2178 131.20      
3 A 1125 1073 16.11      
4 A 852 813 0.02      
5 A 655 625 8.10      
6 A 395 377 1.25      
7 A 155 148 9.91      
8 B 2321 2214 179.52      
9 B 2266 2161 25.23      
10 B 1116 1064 34.12      
11 B 802 765 37.54      
12 B 629 599 12.58      

Unscaled Zero Point Vibrational Energy (zpe) 7455.1 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 7110.0 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 B1B95/6-31G
ABC
2.10341 0.17662 0.17631

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 1.165 -0.086
P2 0.000 -1.165 -0.086
H3 -0.160 1.405 1.332
H4 1.437 1.291 -0.049
H5 0.160 -1.405 1.332
H6 -1.437 -1.291 -0.049

Atom - Atom Distances (Å)
  P1 P2 H3 H4 H5 H6
P12.32981.44671.44312.93932.8457
P22.32982.93932.84571.44671.4431
H31.44672.93932.11442.82803.2872
H41.44312.84572.11443.28723.8636
H52.93931.44672.82803.28722.1144
H62.84571.44313.28723.86362.1144

picture of Diphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 P2 H5 99.550 P1 P2 H6 95.012
P2 P1 H3 99.550 P2 P1 H4 95.012
H3 P1 H4 94.052 H5 P2 H6 94.052
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P -0.018      
2 P -0.018      
3 H 0.003      
4 H 0.015      
5 H 0.003      
6 H 0.015      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.887 1.887
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.976 2.952 0.000
y 2.952 -31.467 0.000
z 0.000 0.000 -30.135
Traceless
 xyz
x 1.825 2.952 0.000
y 2.952 -1.911 0.000
z 0.000 0.000 0.086
Polar
3z2-r20.172
x2-y22.491
xy2.952
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.740 0.447 0.000
y 0.447 9.474 0.000
z 0.000 0.000 5.452


<r2> (average value of r2) Å2
<r2> 74.803
(<r2>)1/2 8.649