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

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-382.401622
Energy at 298.15K-382.407221
Nuclear repulsion energy59.792876
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 B3PW91/6-31G**
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 3171 3040 8.58      
2 A 3071 2943 13.74      
3 A 2401 2301 83.85      
4 A 1484 1422 6.37      
5 A 1342 1286 0.48      
6 A 1126 1079 17.44      
7 A 1002 961 50.29      
8 A 747 716 0.82      
9 A 682 653 6.82      
10 A 3160 3029 7.48      
11 A 2412 2312 113.51      
12 A 1487 1425 8.12      
13 A 1044 1000 21.90      
14 A 705 675 0.68      
15 A 234 225 3.16      

Unscaled Zero Point Vibrational Energy (zpe) 12033.2 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 11532.7 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 B3PW91/6-31G**
ABC
2.39340 0.38971 0.38612

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.071 1.191 0.000
P2 0.071 -0.676 0.000
H3 -0.928 1.631 0.000
H4 0.613 1.543 0.882
H5 0.613 1.543 -0.882
H6 -0.890 -0.864 -1.034
H7 -0.890 -0.864 1.034

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.86651.09181.09331.09332.49282.4928
P21.86652.51392.44812.44811.42421.4242
H31.09182.51391.77811.77812.70112.7011
H41.09332.44811.77811.76303.42372.8416
H51.09332.44811.77811.76302.84163.4237
H62.49281.42422.70113.42372.84162.0688
H72.49281.42422.70112.84163.42372.0688

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 97.587 C1 P2 H7 97.587
P2 C1 H3 113.787 P2 C1 H4 108.776
P2 C1 H5 108.776 H3 C1 H4 108.928
H3 C1 H5 108.928 H4 C1 H5 107.461
H6 P2 H7 93.156
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.582      
2 P 0.124      
3 H 0.161      
4 H 0.160      
5 H 0.160      
6 H -0.012      
7 H -0.012      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.774 1.141 0.000 1.378
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.415 1.618 0.000
y 1.618 -22.136 0.000
z 0.000 0.000 -20.759
Traceless
 xyz
x -0.968 1.618 0.000
y 1.618 -0.549 0.000
z 0.000 0.000 1.516
Polar
3z2-r23.032
x2-y2-0.279
xy1.618
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> 44.865
(<r2>)1/2 6.698