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

using model chemistry: HF/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-31G**
 hartrees
Energy at 0K-381.495435
Energy at 298.15K-381.501165
Nuclear repulsion energy60.162430
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 HF/6-31G**
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 3287 2967 17.32      
2 A 3195 2884 23.08      
3 A 2560 2310 103.93      
4 A 1601 1445 5.02      
5 A 1472 1328 0.19      
6 A 1234 1114 28.11      
7 A 1097 990 58.55      
8 A 800 722 2.00      
9 A 737 665 7.52      
10 A 3271 2952 15.88      
11 A 2555 2307 148.00      
12 A 1607 1450 6.83      
13 A 1131 1021 23.58      
14 A 754 681 3.08      
15 A 246 222 2.36      

Unscaled Zero Point Vibrational Energy (zpe) 12771.9 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 11527.9 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 HF/6-31G**
ABC
2.45261 0.39341 0.38833

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.068 1.188 0.000
P2 0.068 -0.671 0.000
H3 -0.926 1.616 0.000
H4 0.601 1.543 0.876
H5 0.601 1.543 -0.876
H6 -0.856 -0.885 -1.038
H7 -0.856 -0.885 1.038

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.85911.08241.08461.08462.49632.4963
P21.85912.49352.43962.43961.40611.4061
H31.08242.49351.76181.76182.70912.7091
H41.08462.43961.76181.75133.41782.8365
H51.08462.43961.76181.75132.83653.4178
H62.49631.40612.70913.41782.83652.0760
H72.49631.40612.70912.83653.41782.0760

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 98.782 C1 P2 H7 98.782
P2 C1 H3 113.271 P2 C1 H4 109.091
P2 C1 H5 109.091 H3 C1 H4 108.784
H3 C1 H5 108.784 H4 C1 H5 107.670
H6 P2 H7 95.156
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.567 0.241    
2 P 0.293 -0.333    
3 H 0.142 -0.073    
4 H 0.139 -0.013    
5 H 0.139 -0.013    
6 H -0.073 0.096    
7 H -0.073 0.096    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.735 1.051 0.000 1.283
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.097 1.653 0.000
y 1.653 -22.644 0.000
z 0.000 0.000 -21.128
Traceless
 xyz
x -1.211 1.653 0.000
y 1.653 -0.532 0.000
z 0.000 0.000 1.743
Polar
3z2-r23.486
x2-y2-0.453
xy1.653
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.110 0.415 0.000
y 0.415 5.212 0.000
z 0.000 0.000 4.689


<r2> (average value of r2) Å2
<r2> 44.915
(<r2>)1/2 6.702