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

using model chemistry: LSDA/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 LSDA/3-21G
 hartrees
Energy at 0K-379.321353
Energy at 298.15K-379.326915
Nuclear repulsion energy58.818919
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 LSDA/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 3121 3069 2.89      
2 A 3017 2967 6.79      
3 A 2162 2127 74.97      
4 A 1485 1461 15.61      
5 A 1332 1310 4.53      
6 A 1098 1080 13.94      
7 A 978 962 54.39      
8 A 729 717 1.95      
9 A 650 639 2.87      
10 A 3112 3061 1.68      
11 A 2181 2145 86.52      
12 A 1480 1455 15.50      
13 A 1035 1018 29.86      
14 A 709 697 1.25      
15 A 226 222 5.63      

Unscaled Zero Point Vibrational Energy (zpe) 11656.9 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 11465.7 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 LSDA/3-21G
ABC
2.29035 0.37750 0.37461

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.074 1.212 0.000
P2 0.074 -0.690 0.000
H3 -0.939 1.641 0.000
H4 0.621 1.555 0.892
H5 0.621 1.555 -0.892
H6 -0.926 -0.838 -1.056
H7 -0.926 -0.838 1.056

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.90181.10011.10131.10132.51382.5138
P21.90182.54102.47712.47711.46191.4619
H31.10012.54101.79911.79912.69452.6945
H41.10132.47711.79911.78443.45232.8547
H51.10132.47711.79911.78442.85473.4523
H62.51381.46192.69453.45232.85472.1121
H72.51381.46192.69452.85473.45232.1121

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 95.834 C1 P2 H7 95.834
P2 C1 H3 112.926 P2 C1 H4 108.171
P2 C1 H5 108.171 H3 C1 H4 109.619
H3 C1 H5 109.619 H4 C1 H5 108.213
H6 P2 H7 92.505
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.931      
2 P 0.108      
3 H 0.243      
4 H 0.249      
5 H 0.249      
6 H 0.041      
7 H 0.041      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.076 1.244 0.000 1.645
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.787 1.863 0.000
y 1.863 -22.882 0.000
z 0.000 0.000 -21.234
Traceless
 xyz
x -0.729 1.863 0.000
y 1.863 -0.872 0.000
z 0.000 0.000 1.601
Polar
3z2-r23.201
x2-y20.095
xy1.863
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.192 0.440 0.000
y 0.440 5.084 0.000
z 0.000 0.000 4.643


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000