return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-382.447107
Energy at 298.15K-382.452718
Nuclear repulsion energy59.949861
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 B1B95/6-31+G**
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 3174 3036 7.39      
2 A 3074 2941 16.73      
3 A 2416 2311 87.63      
4 A 1473 1409 7.57      
5 A 1335 1277 0.95      
6 A 1125 1076 14.48      
7 A 997 954 50.18      
8 A 750 717 0.81      
9 A 687 657 8.60      
10 A 3164 3026 7.53      
11 A 2426 2321 104.23      
12 A 1478 1413 9.23      
13 A 1042 997 21.53      
14 A 707 676 0.96      
15 A 239 228 2.77      

Unscaled Zero Point Vibrational Energy (zpe) 12042.0 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 11519.4 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 B1B95/6-31+G**
ABC
2.40229 0.39204 0.38846

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.070 1.187 0.000
P2 0.070 -0.674 0.000
H3 -0.927 1.628 0.000
H4 0.612 1.539 0.880
H5 0.612 1.539 -0.880
H6 -0.889 -0.858 -1.032
H7 -0.889 -0.858 1.032

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.86061.09041.09191.09192.48272.4827
P21.86062.50872.44242.44241.42081.4208
H31.09042.50871.77511.77512.69162.6916
H41.09192.44241.77511.75993.41362.8320
H51.09192.44241.77511.75992.83203.4136
H62.48271.42082.69163.41362.83202.0637
H72.48271.42082.69162.83203.41362.0637

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 97.427 C1 P2 H7 97.427
P2 C1 H3 113.880 P2 C1 H4 108.823
P2 C1 H5 108.823 H3 C1 H4 108.862
H3 C1 H5 108.862 H4 C1 H5 107.396
H6 P2 H7 93.150
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.644      
2 P 0.102      
3 H 0.188      
4 H 0.185      
5 H 0.185      
6 H -0.008      
7 H -0.008      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.730 1.083 0.000 1.306
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.797 1.569 0.000
y 1.569 -22.658 0.000
z 0.000 0.000 -21.063
Traceless
 xyz
x -0.936 1.569 0.000
y 1.569 -0.728 0.000
z 0.000 0.000 1.664
Polar
3z2-r23.328
x2-y2-0.139
xy1.569
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.938 0.249 0.000
y 0.249 6.116 0.000
z 0.000 0.000 4.992


<r2> (average value of r2) Å2
<r2> 44.941
(<r2>)1/2 6.704