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

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-380.486621
Energy at 298.15K-380.492228
Nuclear repulsion energy58.887331
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 mPW1PW91/3-21G
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 3197 3051 5.95      
2 A 3098 2958 12.75      
3 A 2256 2154 83.22      
4 A 1549 1478 12.87      
5 A 1392 1329 1.43      
6 A 1150 1098 18.44      
7 A 1021 974 52.70      
8 A 756 721 1.96      
9 A 659 629 2.48      
10 A 3190 3045 4.36      
11 A 2265 2162 106.75      
12 A 1545 1475 12.81      
13 A 1073 1024 27.91      
14 A 738 704 2.03      
15 A 219 209 4.88      

Unscaled Zero Point Vibrational Energy (zpe) 12052.4 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 11505.2 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 mPW1PW91/3-21G
ABC
2.33911 0.37525 0.37168

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.072 1.220 0.000
P2 0.072 -0.691 0.000
H3 -0.937 1.635 0.000
H4 0.611 1.563 0.886
H5 0.611 1.563 -0.886
H6 -0.903 -0.854 -1.053
H7 -0.903 -0.854 1.053

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.91141.09121.09211.09212.52242.5224
P21.91142.53602.48152.48151.44471.4447
H31.09122.53601.78451.78452.70322.7032
H41.09212.48151.78451.77223.44892.8569
H51.09212.48151.78451.77222.85693.4489
H62.52241.44472.70323.44892.85692.1066
H72.52241.44472.70322.85693.44892.1066

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 96.468 C1 P2 H7 96.468
P2 C1 H3 112.364 P2 C1 H4 108.313
P2 C1 H5 108.313 H3 C1 H4 109.646
H3 C1 H5 109.646 H4 C1 H5 108.468
H6 P2 H7 93.621
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.948      
2 P 0.185      
3 H 0.243      
4 H 0.247      
5 H 0.247      
6 H 0.013      
7 H 0.013      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.010 1.167 0.000 1.543
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.948 1.819 0.000
y 1.819 -22.886 0.000
z 0.000 0.000 -21.260
Traceless
 xyz
x -0.876 1.819 0.000
y 1.819 -0.781 0.000
z 0.000 0.000 1.657
Polar
3z2-r23.314
x2-y2-0.063
xy1.819
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 46.241
(<r2>)1/2 6.800