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

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-380.253132
Energy at 298.15K-380.258666
Nuclear repulsion energy58.316791
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 PBEPBE/3-21G
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 3106 3078 7.52      
2 A 3009 2982 12.93      
3 A 2161 2142 88.40      
4 A 1502 1489 11.38      
5 A 1338 1326 0.56      
6 A 1108 1098 16.99      
7 A 983 974 51.06      
8 A 727 720 1.68      
9 A 626 620 2.42      
10 A 3099 3071 5.88      
11 A 2177 2157 105.33      
12 A 1497 1484 11.24      
13 A 1034 1025 24.60      
14 A 711 704 1.47      
15 A 213 211 4.55      

Unscaled Zero Point Vibrational Energy (zpe) 11646.0 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 11540.0 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 PBEPBE/3-21G
ABC
2.28673 0.36790 0.36507

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.074 1.232 0.000
P2 0.074 -0.700 0.000
H3 -0.943 1.652 0.000
H4 0.619 1.573 0.894
H5 0.619 1.573 -0.894
H6 -0.925 -0.847 -1.057
H7 -0.925 -0.847 1.057

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.93111.10031.10141.10142.53682.5368
P21.93112.56242.50192.50191.46181.4618
H31.10032.56241.80131.80132.71382.7138
H41.10142.50191.80131.78853.47062.8749
H51.10142.50191.80131.78852.87493.4706
H62.53681.46182.71383.47062.87492.1137
H72.53681.46182.71382.87493.47062.1137

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 95.789 C1 P2 H7 95.789
P2 C1 H3 112.489 P2 C1 H4 108.037
P2 C1 H5 108.037 H3 C1 H4 109.801
H3 C1 H5 109.801 H4 C1 H5 108.575
H6 P2 H7 92.603
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.890      
2 P 0.140      
3 H 0.231      
4 H 0.235      
5 H 0.235      
6 H 0.024      
7 H 0.024      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.992 1.173 0.000 1.537
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.858 1.760 0.000
y 1.760 -22.886 0.000
z 0.000 0.000 -21.317
Traceless
 xyz
x -0.757 1.760 0.000
y 1.760 -0.798 0.000
z 0.000 0.000 1.555
Polar
3z2-r23.109
x2-y20.027
xy1.760
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.178 0.435 0.000
y 0.435 5.225 0.000
z 0.000 0.000 4.638


<r2> (average value of r2) Å2
<r2> 46.830
(<r2>)1/2 6.843