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

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-382.444840
Energy at 298.15K-382.450454
Nuclear repulsion energy59.957316
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 B1B95/6-31G**
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 3185 3041 8.20      
2 A 3082 2943 13.02      
3 A 2417 2308 78.99      
4 A 1483 1416 6.14      
5 A 1338 1278 0.44      
6 A 1127 1076 17.34      
7 A 1003 957 49.55      
8 A 751 717 0.80      
9 A 687 656 6.80      
10 A 3172 3029 7.18      
11 A 2428 2318 108.12      
12 A 1486 1419 7.75      
13 A 1045 998 21.76      
14 A 707 675 0.61      
15 A 241 230 3.01      

Unscaled Zero Point Vibrational Energy (zpe) 12075.4 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 11529.6 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 B1B95/6-31G**
ABC
2.40230 0.39207 0.38857

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.071 1.187 0.000
P2 0.071 -0.674 0.000
H3 -0.927 1.626 0.000
H4 0.612 1.538 0.880
H5 0.612 1.538 -0.880
H6 -0.890 -0.858 -1.031
H7 -0.890 -0.858 1.031

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.86091.08961.09131.09132.48312.4831
P21.86092.50652.44132.44131.42091.4209
H31.08962.50651.77511.77512.68892.6889
H41.09132.44131.77511.75993.41272.8317
H51.09132.44131.77511.75992.83173.4127
H62.48311.42092.68893.41272.83172.0614
H72.48311.42092.68892.83173.41272.0614

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 97.432 C1 P2 H7 97.432
P2 C1 H3 113.739 P2 C1 H4 108.758
P2 C1 H5 108.758 H3 C1 H4 108.963
H3 C1 H5 108.963 H4 C1 H5 107.479
H6 P2 H7 93.001
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.556      
2 P 0.117      
3 H 0.154      
4 H 0.153      
5 H 0.153      
6 H -0.010      
7 H -0.010      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.751 1.116 0.000 1.345
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.360 1.583 0.000
y 1.583 -22.110 0.000
z 0.000 0.000 -20.737
Traceless
 xyz
x -0.936 1.583 0.000
y 1.583 -0.562 0.000
z 0.000 0.000 1.498
Polar
3z2-r22.996
x2-y2-0.249
xy1.583
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.293 0.349 0.000
y 0.349 5.366 0.000
z 0.000 0.000 4.665


<r2> (average value of r2) Å2
<r2> 44.656
(<r2>)1/2 6.683