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

using model chemistry: B3LYP/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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-15.168748
Energy at 298.15K-15.174297
Nuclear repulsion energy22.081876
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-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 3144 3036 26.87      
2 A 3055 2950 25.43      
3 A 2334 2254 97.67      
4 A 1481 1430 8.08      
5 A 1327 1281 0.20      
6 A 1122 1083 17.74      
7 A 990 956 59.22      
8 A 729 704 0.79      
9 A 664 641 5.57      
10 A 3136 3028 23.88      
11 A 2353 2273 133.06      
12 A 1482 1431 8.99      
13 A 1029 994 23.31      
14 A 692 669 0.84      
15 A 225 218 4.56      

Unscaled Zero Point Vibrational Energy (zpe) 11881.2 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 11473.7 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-31G*
ABC
2.33733 0.37931 0.37624

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.134 0.891 0.000
P2 0.134 -1.003 0.000
H3 -0.877 1.328 0.000
H4 0.681 1.244 0.890
H5 0.681 1.244 -0.890
H6 -0.846 -1.182 -1.042
H7 -0.846 -1.182 1.042

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.89401.10131.10261.10262.51862.5186
P21.89402.54112.47772.47771.44191.4419
H31.10132.54111.79601.79602.71822.7182
H41.10262.47771.79601.78033.45672.8700
H51.10262.47771.79601.78032.87003.4567
H62.51861.44192.71823.45672.87002.0848
H72.51861.44192.71822.87003.45672.0848

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 97.118 C1 P2 H7 97.118
P2 C1 H3 113.406 P2 C1 H4 108.652
P2 C1 H5 108.652 H3 C1 H4 109.156
H3 C1 H5 109.156 H4 C1 H5 107.661
H6 P2 H7 92.597
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.455      
2 P -0.218      
3 H 0.178      
4 H 0.171      
5 H 0.171      
6 H 0.076      
7 H 0.076      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.983 1.088 0.000 1.466
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.558 2.132 0.000
y 2.132 -22.253 0.000
z 0.000 0.000 -19.797
Traceless
 xyz
x -0.532 2.132 0.000
y 2.132 -1.575 0.000
z 0.000 0.000 2.108
Polar
3z2-r24.216
x2-y20.695
xy2.132
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.948 0.331 0.000
y 0.331 5.867 0.000
z 0.000 0.000 4.509


<r2> (average value of r2) Å2
<r2> 36.146
(<r2>)1/2 6.012