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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-382.394457
Energy at 298.15K-382.400063
Nuclear repulsion energy59.771637
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 B3PW91/6-31G*
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 3170 3033 9.30      
2 A 3074 2941 14.49      
3 A 2410 2306 93.66      
4 A 1503 1438 6.94      
5 A 1359 1300 0.58      
6 A 1142 1092 17.04      
7 A 1011 967 52.80      
8 A 751 719 0.75      
9 A 684 655 6.72      
10 A 3160 3023 8.31      
11 A 2420 2315 126.33      
12 A 1504 1439 8.76      
13 A 1051 1006 22.50      
14 A 709 678 0.67      
15 A 237 227 3.19      

Unscaled Zero Point Vibrational Energy (zpe) 12092.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 11568.5 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 B3PW91/6-31G*
ABC
2.38955 0.38953 0.38599

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.071 1.191 0.000
P2 0.071 -0.676 0.000
H3 -0.930 1.631 0.000
H4 0.614 1.544 0.882
H5 0.614 1.544 -0.882
H6 -0.891 -0.860 -1.034
H7 -0.891 -0.860 1.034

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.86701.09301.09441.09442.49002.4900
P21.86702.51482.45002.45001.42451.4245
H31.09302.51481.77971.77972.69732.6973
H41.09442.45001.77971.76453.42292.8400
H51.09442.45001.77971.76452.84003.4229
H62.49001.42452.69733.42292.84002.0689
H72.49001.42452.69732.84003.42292.0689

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 97.401 C1 P2 H7 97.401
P2 C1 H3 113.754 P2 C1 H4 108.828
P2 C1 H5 108.828 H3 C1 H4 108.904
H3 C1 H5 108.904 H4 C1 H5 107.436
H6 P2 H7 93.135
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.696     0.018
2 P 0.057     -0.341
3 H 0.200     -0.004
4 H 0.199     0.056
5 H 0.199     0.056
6 H 0.020     0.108
7 H 0.020     0.108


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.775 1.148 0.000 1.385
CHELPG        
AIM        
ESP -0.688 1.111 0.000 1.307


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.454 1.623 0.000
y 1.623 -22.190 0.000
z 0.000 0.000 -20.774
Traceless
 xyz
x -0.971 1.623 0.000
y 1.623 -0.576 0.000
z 0.000 0.000 1.548
Polar
3z2-r23.095
x2-y2-0.263
xy1.623
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> 44.901
(<r2>)1/2 6.701