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All results from a given calculation for CH3PH2 (Methyl phosphine)

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 CS 1A'
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-15.136216
Energy at 298.15K-15.141754
Nuclear repulsion energy21.876597
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 3121 3041 22.32      
2 A 3011 2934 32.24      
3 A 2218 2162 134.01      
4 A 1500 1462 10.29      
5 A 1358 1323 0.51      
6 A 1107 1078 15.73      
7 A 998 973 55.56      
8 A 728 709 1.21      
9 A 636 620 5.33      
10 A 3117 3037 21.98      
11 A 2250 2193 142.05      
12 A 1501 1462 10.30      
13 A 1035 1009 19.96      
14 A 702 684 2.13      
15 A 201 196 3.46      

Unscaled Zero Point Vibrational Energy (zpe) 11740.8 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 11441.4 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
2.30623 0.36666 0.36304

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.136 0.912 0.000
P2 0.136 -1.021 0.000
H3 -0.872 1.338 0.000
H4 0.676 1.258 0.887
H5 0.676 1.258 -0.887
H6 -0.850 -1.200 -1.068
H7 -0.850 -1.200 1.068

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.93311.09421.09511.09512.56382.5638
P21.93312.56522.50492.50491.46391.4639
H31.09422.56521.78621.78622.75372.7537
H41.09512.50491.78621.77473.49202.8991
H51.09512.50491.78621.77472.89913.4920
H62.56381.46392.75373.49202.89912.1351
H72.56381.46392.75372.89913.49202.1351

picture of Methyl phosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 P2 H6 97.034 C1 P2 H7 97.034
P2 C1 H3 112.905 P2 C1 H4 108.428
P2 C1 H5 108.428 H3 C1 H4 109.359
H3 C1 H5 109.359 H4 C1 H5 108.252
H6 P2 H7 93.650
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 C -0.708      
2 P 0.191      
3 H 0.182      
4 H 0.183      
5 H 0.183      
6 H -0.016      
7 H -0.016      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.882 1.117 0.000 1.423
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.441 2.071 0.000
y 2.071 -22.849 0.000
z 0.000 0.000 -20.448
Traceless
 xyz
x -0.793 2.071 0.000
y 2.071 -1.404 0.000
z 0.000 0.000 2.196
Polar
3z2-r24.393
x2-y20.407
xy2.071
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.842 0.430 0.000
y 0.430 6.145 0.000
z 0.000 0.000 5.258


<r2> (average value of r2) Å2
<r2> 37.203
(<r2>)1/2 6.099