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All results from a given calculation for P2H4 (Diphosphine)

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-15.380382
Energy at 298.15K-15.385447
Nuclear repulsion energy17.510077
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 B3LYP/CEP-121G
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 2266 2208 83.19      
2 A 2233 2177 126.85      
3 A 1116 1087 17.48      
4 A 834 813 0.19      
5 A 622 606 6.46      
6 A 379 369 1.42      
7 A 137 134 7.15      
8 B 2273 2215 182.59      
9 B 2219 2162 32.00      
10 B 1109 1080 26.11      
11 B 773 753 41.08      
12 B 607 592 9.75      

Unscaled Zero Point Vibrational Energy (zpe) 7283.4 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 7097.7 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 B3LYP/CEP-121G
ABC
2.04917 0.16879 0.16850

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 1.193 -0.213
P2 0.000 -1.193 -0.213
H3 -0.160 1.429 1.224
H4 1.456 1.308 -0.159
H5 0.160 -1.429 1.224
H6 -1.456 -1.308 -0.159

Atom - Atom Distances (Å)
  P1 P2 H3 H4 H5 H6
P12.38591.46461.46112.99382.8939
P22.38592.99382.89391.46461.4611
H31.46462.99382.13002.87563.3283
H41.46112.89392.13003.32833.9133
H52.99381.46462.87563.32832.1300
H62.89391.46113.32833.91332.1300

picture of Diphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 P2 H5 99.269 P1 P2 H6 94.500
P2 P1 H3 99.269 P2 P1 H4 94.500
H3 P1 H4 93.446 H5 P2 H6 93.446
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.023      
2 P 0.023      
3 H -0.017      
4 H -0.007      
5 H -0.017      
6 H -0.007      


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 1.653 1.653
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.455 2.645 0.000
y 2.645 -29.840 0.000
z 0.000 0.000 -29.002
Traceless
 xyz
x 1.967 2.645 0.000
y 2.645 -1.612 0.000
z 0.000 0.000 -0.355
Polar
3z2-r2-0.710
x2-y22.386
xy2.645
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.412 0.494 0.000
y 0.494 10.514 0.000
z 0.000 0.000 6.151


<r2> (average value of r2) Å2
<r2> 47.488
(<r2>)1/2 6.891