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

using model chemistry: B1B95/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/CEP-31G
 hartrees
Energy at 0K-15.075239
Energy at 298.15K-15.080779
Nuclear repulsion energy21.910872
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/CEP-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 3200 3064 26.73      
2 A 3085 2954 30.20      
3 A 2222 2128 163.51      
4 A 1482 1419 15.39      
5 A 1357 1299 3.91      
6 A 1096 1049 25.67      
7 A 995 953 81.43      
8 A 732 701 3.19      
9 A 656 628 4.94      
10 A 3198 3062 21.88      
11 A 2258 2162 203.54      
12 A 1482 1419 12.86      
13 A 1037 993 30.91      
14 A 703 674 3.24      
15 A 212 203 7.08      

Unscaled Zero Point Vibrational Energy (zpe) 11857.7 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 11353.8 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/CEP-31G
ABC
2.30034 0.37083 0.36738

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.073 1.225 0.000
P2 0.073 -0.694 0.000
H3 -0.937 1.659 0.000
H4 0.618 1.572 0.890
H5 0.618 1.572 -0.890
H6 -0.915 -0.873 -1.064
H7 -0.915 -0.873 1.064

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.91921.09911.09951.09952.55232.5523
P21.91922.56072.49472.49471.46341.4634
H31.09912.56071.79361.79362.74742.7474
H41.09952.49471.79361.77923.48572.8919
H51.09952.49471.79361.77922.89193.4857
H62.55231.46342.74743.48572.89192.1283
H72.55231.46342.74742.89193.48572.1283

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 97.048 C1 P2 H7 97.048
P2 C1 H3 113.259 P2 C1 H4 108.383
P2 C1 H5 108.383 H3 C1 H4 109.333
H3 C1 H5 109.333 H4 C1 H5 108.014
H6 P2 H7 93.298
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.619      
2 P 0.094      
3 H 0.188      
4 H 0.189      
5 H 0.189      
6 H -0.021      
7 H -0.021      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.278 1.226 0.000 1.771
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.900 2.030 0.000
y 2.030 -21.883 0.000
z 0.000 0.000 -20.083
Traceless
 xyz
x -0.916 2.030 0.000
y 2.030 -0.892 0.000
z 0.000 0.000 1.809
Polar
3z2-r23.617
x2-y2-0.016
xy2.030
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.751 0.465 0.000
y 0.465 5.613 0.000
z 0.000 0.000 4.524


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000