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: HF/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/cc-pVQZ
 hartrees
Energy at 0K-381.546983
Energy at 298.15K-381.552704
Nuclear repulsion energy60.331540
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 HF/cc-pVQZ
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 3253 2955 14.51      
2 A 3170 2879 19.83      
3 A 2519 2288 77.37      
4 A 1586 1441 4.38      
5 A 1450 1317 0.06      
6 A 1213 1102 23.85      
7 A 1080 981 44.99      
8 A 787 715 1.22      
9 A 729 662 8.54      
10 A 3238 2941 14.72      
11 A 2516 2285 107.87      
12 A 1594 1448 5.35      
13 A 1117 1014 21.39      
14 A 739 672 2.46      
15 A 247 224 1.94      

Unscaled Zero Point Vibrational Energy (zpe) 12618.2 cm-1
Scaled (by 0.9084) Zero Point Vibrational Energy (zpe) 11462.4 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 HF/cc-pVQZ
ABC
2.45735 0.39639 0.39121

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.068 1.184 0.000
P2 0.068 -0.667 0.000
H3 -0.924 1.610 0.000
H4 0.602 1.534 0.874
H5 0.602 1.534 -0.874
H6 -0.855 -0.889 -1.038
H7 -0.855 -0.889 1.038

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.85171.07991.08211.08212.49522.4952
P21.85172.48442.42772.42771.40621.4062
H31.07992.48441.76031.76032.70682.7068
H41.08212.42771.76031.74843.41242.8312
H51.08212.42771.76031.74842.83123.4124
H62.49521.40622.70683.41242.83122.0756
H72.49521.40622.70682.83123.41242.0756

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 99.058 C1 P2 H7 99.058
P2 C1 H3 113.226 P2 C1 H4 108.836
P2 C1 H5 108.836 H3 C1 H4 109.011
H3 C1 H5 109.011 H4 C1 H5 107.780
H6 P2 H7 95.126
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.333      
2 P 0.242      
3 H 0.082      
4 H 0.078      
5 H 0.078      
6 H -0.073      
7 H -0.073      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.678 1.090 0.000 1.284
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.091 1.603 0.000
y 1.603 -22.740 0.000
z 0.000 0.000 -21.154
Traceless
 xyz
x -1.144 1.603 0.000
y 1.603 -0.617 0.000
z 0.000 0.000 1.761
Polar
3z2-r23.522
x2-y2-0.351
xy1.603
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.337 0.219 0.000
y 0.219 6.509 0.000
z 0.000 0.000 5.465


<r2> (average value of r2) Å2
<r2> 44.738
(<r2>)1/2 6.689