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All results from a given calculation for CH3PHCH3 (dimethylphosphine)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G**
 hartrees
Energy at 0K-421.521717
Energy at 298.15K-421.529484
HF Energy-421.521717
Nuclear repulsion energy112.888321
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 PBE1PBE/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3170 3021 10.65      
2 A' 3164 3016 22.18      
3 A' 3074 2930 15.91      
4 A' 2408 2295 118.58      
5 A' 1507 1437 4.74      
6 A' 1505 1435 15.17      
7 A' 1366 1302 1.98      
8 A' 1031 983 38.14      
9 A' 988 941 40.29      
10 A' 731 697 1.61      
11 A' 674 643 1.17      
12 A' 254 242 0.12      
13 A' 194 185 0.27      
14 A" 3171 3022 4.69      
15 A" 3165 3017 0.09      
16 A" 3076 2932 14.49      
17 A" 1497 1427 11.91      
18 A" 1492 1422 1.79      
19 A" 1348 1285 3.80      
20 A" 1044 995 29.53      
21 A" 845 806 1.02      
22 A" 742 707 6.04      
23 A" 719 686 8.26      
24 A" 184 175 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 18673.7 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 17797.9 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 PBE1PBE/6-31G**
ABC
0.53402 0.23111 0.17855

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.038 -0.665 0.000
H2 1.362 -0.933 0.000
C3 -0.038 0.527 1.423
C4 -0.038 0.527 -1.423
H5 -1.032 0.977 1.514
H6 -1.032 0.977 -1.514
H7 0.163 -0.015 2.353
H8 0.163 -0.015 -2.353
H9 0.700 1.330 1.316
H10 0.700 1.330 -1.316

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.42481.85691.85692.44482.44482.44932.44932.50112.5011
H21.42482.47322.47323.41603.41602.79572.79572.69982.6998
C31.85692.47322.84671.09503.13341.09463.82021.09502.9484
C41.85692.47322.84673.13341.09503.82021.09462.94841.0950
H52.44483.41601.09503.13343.02791.76494.16691.77863.3368
H62.44483.41603.13341.09503.02794.16691.76493.33681.7786
H72.44932.79571.09463.82021.76494.16694.70571.78073.9444
H82.44932.79573.82021.09464.16691.76494.70573.94441.7807
H92.50112.69981.09502.94841.77863.33681.78073.94442.6325
H102.50112.69982.94841.09503.33681.77863.94441.78072.6325

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 109.085 P1 C3 H7 109.433
P1 C3 H9 113.297 P1 C4 H6 109.085
P1 C4 H8 109.433 P1 C4 H10 113.297
H2 P1 C3 96.928 H2 P1 C4 96.928
C3 P1 C4 100.084 H5 C3 H7 107.418
H5 C3 H9 108.612 H6 C4 H8 107.418
H6 C4 H10 108.612 H7 C3 H9 108.827
H8 C4 H10 108.827
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.234      
2 H 0.008      
3 C -0.712      
4 C -0.712      
5 H 0.197      
6 H 0.197      
7 H 0.201      
8 H 0.201      
9 H 0.193      
10 H 0.193      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.516 1.385 0.000 1.478
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.056 -1.552 0.000
y -1.552 -30.032 0.000
z 0.000 0.000 -26.278
Traceless
 xyz
x 0.099 -1.552 0.000
y -1.552 -2.865 0.000
z 0.000 0.000 2.766
Polar
3z2-r25.532
x2-y21.976
xy-1.552
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.772 -0.342 0.000
y -0.342 6.147 0.000
z 0.000 0.000 7.228


<r2> (average value of r2) Å2
<r2> 82.341
(<r2>)1/2 9.074