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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-381.423165
Energy at 298.15K-381.428848
Nuclear repulsion energy59.201659
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 3317 2995 12.50      
2 A 3220 2908 27.46      
3 A 2407 2173 135.85      
4 A 1632 1473 10.32      
5 A 1497 1351 0.47      
6 A 1212 1095 27.93      
7 A 1099 992 55.54      
8 A 799 721 3.57      
9 A 701 633 3.30      
10 A 3314 2992 10.65      
11 A 2410 2176 186.79      
12 A 1634 1475 11.09      
13 A 1135 1024 27.65      
14 A 768 694 5.31      
15 A 219 197 4.12      

Unscaled Zero Point Vibrational Energy (zpe) 12681.1 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 11449.8 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 HF/6-31G
ABC
2.40755 0.37785 0.37240

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 0.069 1.219 0.000
P2 0.069 -0.685 0.000
H3 -0.929 1.632 0.000
H4 0.599 1.566 0.876
H5 0.599 1.566 -0.876
H6 -0.860 -0.904 -1.064
H7 -0.860 -0.904 1.064

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.90421.08031.08101.08102.54962.5496
P21.90422.52292.47282.47281.42881.4288
H31.08032.52291.76281.76282.75052.7505
H41.08102.47281.76281.75233.46242.8742
H51.08102.47281.76281.75232.87423.4624
H62.54961.42882.75053.46242.87422.1272
H72.54961.42882.75052.87423.46242.1272

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 98.804 C1 P2 H7 98.804
P2 C1 H3 112.455 P2 C1 H4 108.704
P2 C1 H5 108.704 H3 C1 H4 109.298
H3 C1 H5 109.298 H4 C1 H5 108.292
H6 P2 H7 96.218
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 -0.774 0.280    
2 P 0.336 -0.394    
3 H 0.187 -0.075    
4 H 0.189 -0.022    
5 H 0.189 -0.022    
6 H -0.064 0.117    
7 H -0.064 0.117    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.948 1.174 0.000 1.509
CHELPG -0.797 0.992 0.000 1.273
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.677 1.858 0.000
y 1.858 -23.202 0.000
z 0.000 0.000 -21.611
Traceless
 xyz
x -1.271 1.858 0.000
y 1.858 -0.558 0.000
z 0.000 0.000 1.829
Polar
3z2-r23.658
x2-y2-0.476
xy1.858
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.059 0.530 0.000
y 0.530 5.378 0.000
z 0.000 0.000 4.792


<r2> (average value of r2) Å2
<r2> 46.374
(<r2>)1/2 6.810