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

using model chemistry: mPW1PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G
 hartrees
Energy at 0K-382.398400
Energy at 298.15K-382.403985
Nuclear repulsion energy58.887914
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 mPW1PW91/6-31G
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 3211 3040 9.07      
2 A 3102 2936 17.17      
3 A 2278 2156 124.90      
4 A 1529 1448 11.72      
5 A 1391 1317 1.62      
6 A 1121 1061 17.31      
7 A 1020 966 53.85      
8 A 751 711 2.09      
9 A 666 630 3.36      
10 A 3208 3037 7.45      
11 A 2302 2179 153.49      
12 A 1529 1448 12.71      
13 A 1061 1004 26.20      
14 A 724 686 2.62      
15 A 215 203 5.06      

Unscaled Zero Point Vibrational Energy (zpe) 12053.9 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 11410.2 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 mPW1PW91/6-31G
ABC
2.34456 0.37565 0.37147

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.071 1.219 0.000
P2 0.071 -0.689 0.000
H3 -0.933 1.645 0.000
H4 0.610 1.564 0.884
H5 0.610 1.564 -0.884
H6 -0.895 -0.875 -1.062
H7 -0.895 -0.875 1.062

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.90841.09041.09121.09122.53932.5393
P21.90842.54052.47932.47931.44751.4475
H31.09042.54051.78011.78012.73482.7348
H41.09122.47931.78011.76833.46412.8714
H51.09122.47931.78011.76832.87143.4641
H62.53931.44752.73483.46412.87142.1234
H72.53931.44752.73482.87143.46412.1234

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 97.395 C1 P2 H7 97.395
P2 C1 H3 112.958 P2 C1 H4 108.394
P2 C1 H5 108.394 H3 C1 H4 109.368
H3 C1 H5 109.368 H4 C1 H5 108.247
H6 P2 H7 94.359
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.764      
2 P 0.178      
3 H 0.199      
4 H 0.202      
5 H 0.202      
6 H -0.009      
7 H -0.009      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.035 1.253 0.000 1.625
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.936 1.900 0.000
y 1.900 -22.639 0.000
z 0.000 0.000 -21.066
Traceless
 xyz
x -1.083 1.900 0.000
y 1.900 -0.638 0.000
z 0.000 0.000 1.722
Polar
3z2-r23.444
x2-y2-0.297
xy1.900
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.220 0.439 0.000
y 0.439 5.344 0.000
z 0.000 0.000 4.758


<r2> (average value of r2) Å2
<r2> 46.184
(<r2>)1/2 6.796