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All results from a given calculation for P2H4 (Diphosphine)

using model chemistry: B3LYP/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-685.179745
Energy at 298.15K-685.184993
Nuclear repulsion energy88.125429
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/aug-cc-pVQZ
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 2392 2318 59.78      
2 A 2386 2312 8.17      
3 A 1124 1089 10.36      
4 A 882 855 0.03      
5 A 642 622 5.00      
6 A 420 407 0.81      
7 A 201 195 2.21      
8 B 2399 2325 78.22      
9 B 2376 2302 15.87      
10 B 1112 1077 23.73      
11 B 812 786 45.10      
12 B 629 609 8.06      

Unscaled Zero Point Vibrational Energy (zpe) 7687.3 cm-1
Scaled (by 0.9689) Zero Point Vibrational Energy (zpe) 7448.3 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/aug-cc-pVQZ
ABC
2.18884 0.19092 0.19041

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVQZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 1.119 -0.086
P2 0.000 -1.119 -0.086
H3 -0.191 1.365 1.297
H4 1.410 1.237 -0.011
H5 0.191 -1.365 1.297
H6 -1.410 -1.237 -0.011

Atom - Atom Distances (Å)
  P1 P2 H3 H4 H5 H6
P12.23861.41711.41672.84942.7471
P22.23862.84942.74711.41711.4167
H31.41712.84942.07102.75643.1566
H41.41672.74712.07103.15663.7513
H52.84941.41712.75643.15662.0710
H62.74711.41673.15663.75132.0710

picture of Diphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 P2 H5 99.978 P1 P2 H6 94.774
P2 P1 H3 99.978 P2 P1 H4 94.774
H3 P1 H4 93.915 H5 P2 H6 93.915
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.241      
2 P 0.241      
3 H -0.119      
4 H -0.121      
5 H -0.119      
6 H -0.121      


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 0.932 0.932
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.613 1.611 0.000
y 1.611 -30.575 0.000
z 0.000 0.000 -29.613
Traceless
 xyz
x 1.481 1.611 0.000
y 1.611 -1.461 0.000
z 0.000 0.000 -0.019
Polar
3z2-r2-0.039
x2-y21.962
xy1.611
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.625 0.203 0.000
y 0.203 11.136 0.000
z 0.000 0.000 7.667


<r2> (average value of r2) Å2
<r2> 70.493
(<r2>)1/2 8.396