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: BLYP/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 BLYP/6-31G**
 hartrees
Energy at 0K-382.402086
Energy at 298.15K-382.407613
Nuclear repulsion energy59.087455
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 BLYP/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 3077 3053 13.30      
2 A 2988 2965 17.02      
3 A 2291 2273 91.88      
4 A 1457 1446 4.46      
5 A 1306 1296 0.82      
6 A 1098 1090 17.04      
7 A 978 970 48.04      
8 A 722 716 0.37      
9 A 632 627 6.45      
10 A 3066 3042 12.22      
11 A 2304 2286 119.41      
12 A 1459 1448 5.55      
13 A 1013 1005 17.38      
14 A 684 678 0.58      
15 A 228 226 2.49      

Unscaled Zero Point Vibrational Energy (zpe) 11650.1 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 11560.4 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 BLYP/6-31G**
ABC
2.35226 0.37884 0.37571

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.072 1.209 0.000
P2 0.072 -0.686 0.000
H3 -0.934 1.651 0.000
H4 0.618 1.560 0.888
H5 0.618 1.560 -0.888
H6 -0.904 -0.867 -1.040
H7 -0.904 -0.867 1.040

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.89581.09841.10011.10012.51872.5187
P21.89582.54482.47692.47691.43731.4373
H31.09842.54481.79031.79032.72442.7244
H41.10012.47691.79031.77603.45312.8689
H51.10012.47691.79031.77602.86893.4531
H62.51871.43732.72443.45312.86892.0796
H72.51871.43732.72442.86893.45312.0796

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 97.209 C1 P2 H7 97.209
P2 C1 H3 113.718 P2 C1 H4 108.605
P2 C1 H5 108.605 H3 C1 H4 109.045
H3 C1 H5 109.045 H4 C1 H5 107.652
H6 P2 H7 92.679
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.448      
2 P 0.115      
3 H 0.124      
4 H 0.123      
5 H 0.123      
6 H -0.018      
7 H -0.018      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.712 1.087 0.000 1.300
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.516 1.515 0.000
y 1.515 -22.258 0.000
z 0.000 0.000 -20.962
Traceless
 xyz
x -0.906 1.515 0.000
y 1.515 -0.519 0.000
z 0.000 0.000 1.424
Polar
3z2-r22.849
x2-y2-0.258
xy1.515
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> 45.746
(<r2>)1/2 6.764