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All results from a given calculation for CH3PHCH3 (dimethylphosphine)

using model chemistry: M06-2X/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 M06-2X/6-31G*
 hartrees
Energy at 0K-421.678151
Energy at 298.15K-421.685914
HF Energy-421.678151
Nuclear repulsion energy112.914779
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 M06-2X/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' 3175 3007 16.82      
2 A' 3172 3003 13.86      
3 A' 3082 2919 12.71      
4 A' 2426 2297 113.31      
5 A' 1516 1436 12.34      
6 A' 1513 1433 5.26      
7 A' 1368 1296 1.43      
8 A' 1019 965 34.85      
9 A' 985 932 35.78      
10 A' 706 669 2.31      
11 A' 661 626 1.87      
12 A' 264 250 0.35      
13 A' 196 186 0.11      
14 A" 3177 3008 2.47      
15 A" 3172 3004 2.03      
16 A" 3085 2921 13.70      
17 A" 1506 1427 7.24      
18 A" 1499 1420 4.77      
19 A" 1350 1279 2.05      
20 A" 1046 990 30.24      
21 A" 845 801 0.98      
22 A" 738 699 8.43      
23 A" 714 676 6.25      
24 A" 195 184 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 18704.3 cm-1
Scaled (by 0.947) Zero Point Vibrational Energy (zpe) 17713.0 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 M06-2X/6-31G*
ABC
0.52644 0.23318 0.17887

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.038 -0.673 0.000
H2 1.358 -0.930 0.000
C3 -0.038 0.533 1.417
C4 -0.038 0.533 -1.417
H5 -1.029 0.987 1.497
H6 -1.029 0.987 -1.497
H7 0.158 -0.000 2.351
H8 0.158 -0.000 -2.351
H9 0.704 1.327 1.299
H10 0.704 1.327 -1.299

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.41901.86051.86052.44542.44542.45342.45342.49782.4978
H21.41902.46862.46863.40793.40792.79862.79862.68512.6851
C31.86052.46862.83411.09363.11151.09313.81081.09342.9258
C41.86052.46862.83413.11151.09363.81081.09312.92581.0934
H52.44543.40791.09363.11152.99401.76474.14651.77713.3073
H62.44543.40793.11151.09362.99404.14651.76473.30731.7771
H72.45342.79861.09313.81081.76474.14654.70251.77963.9226
H82.45342.79863.81081.09314.14651.76474.70253.92261.7796
H92.49782.68511.09342.92581.77713.30731.77963.92262.5985
H102.49782.68512.92581.09343.30731.77713.92261.77962.5985

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 108.968 P1 C3 H7 109.579
P1 C3 H9 112.888 P1 C4 H6 108.968
P1 C4 H8 109.579 P1 C4 H10 112.888
H2 P1 C3 96.731 H2 P1 C4 96.731
C3 P1 C4 99.222 H5 C3 H7 107.606
H5 C3 H9 108.698 H6 C4 H8 107.606
H6 C4 H10 108.698 H7 C3 H9 108.962
H8 C4 H10 108.962
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.241      
2 H 0.001      
3 C -0.672      
4 C -0.672      
5 H 0.184      
6 H 0.184      
7 H 0.188      
8 H 0.188      
9 H 0.179      
10 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.476 1.254 0.000 1.341
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.216 -1.499 0.000
y -1.499 -30.112 0.000
z 0.000 0.000 -26.616
Traceless
 xyz
x 0.148 -1.499 0.000
y -1.499 -2.696 0.000
z 0.000 0.000 2.548
Polar
3z2-r25.096
x2-y21.896
xy-1.499
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.791 -0.322 0.000
y -0.322 6.238 0.000
z 0.000 0.000 7.284


<r2> (average value of r2) Å2
<r2> 82.273
(<r2>)1/2 9.070