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

using model chemistry: MP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-381.763796
Energy at 298.15K-381.769464
HF Energy-381.495315
Nuclear repulsion energy60.131801
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 MP2/6-31G**
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 3256 3049 9.00      
2 A 3146 2947 12.02      
3 A 2515 2355 79.25      
4 A 1532 1435 4.78      
5 A 1401 1312 0.30      
6 A 1164 1090 24.76      
7 A 1043 977 52.10      
8 A 770 721 1.18      
9 A 715 670 8.16      
10 A 3247 3041 7.77      
11 A 2526 2366 110.05      
12 A 1539 1441 6.02      
13 A 1078 1010 21.76      
14 A 714 668 2.16      
15 A 247 232 2.41      

Unscaled Zero Point Vibrational Energy (zpe) 12446.4 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 11656.0 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 MP2/6-31G**
ABC
2.43552 0.39352 0.38897

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.069 1.186 0.000
P2 0.069 -0.673 0.000
H3 -0.926 1.621 0.000
H4 0.605 1.540 0.878
H5 0.605 1.540 -0.878
H6 -0.866 -0.863 -1.035
H7 -0.866 -0.863 1.035

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.85891.08641.08791.08792.47842.4784
P21.85892.50092.44062.44061.40791.4079
H31.08642.50091.76731.76732.69162.6916
H41.08792.44061.76731.75523.40562.8222
H51.08792.44061.76731.75522.82223.4056
H62.47841.40792.69163.40562.82222.0699
H72.47841.40792.69162.82223.40562.0699

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 97.742 C1 P2 H7 97.742
P2 C1 H3 113.622 P2 C1 H4 109.007
P2 C1 H5 109.007 H3 C1 H4 108.741
H3 C1 H5 108.741 H4 C1 H5 107.550
H6 P2 H7 94.634
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability