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All results from a given calculation for CH3PHCH3 (dimethylphosphine)

using model chemistry: PBEPBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-421.511838
Energy at 298.15K-421.519486
HF Energy-421.511838
Nuclear repulsion energy112.204784
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 PBEPBE/6-311G*
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' 3057 3026 15.36      
2 A' 3050 3019 29.20      
3 A' 2969 2938 24.63      
4 A' 2264 2240 100.15      
5 A' 1452 1437 7.35      
6 A' 1447 1432 14.84      
7 A' 1311 1297 1.55      
8 A' 996 986 44.59      
9 A' 952 942 42.40      
10 A' 709 701 1.28      
11 A' 639 632 2.03      
12 A' 246 243 0.29      
13 A' 190 188 0.38      
14 A" 3058 3026 6.41      
15 A" 3052 3020 0.69      
16 A" 2971 2940 20.87      
17 A" 1439 1424 15.03      
18 A" 1435 1420 0.13      
19 A" 1292 1278 3.98      
20 A" 1002 991 29.46      
21 A" 816 807 0.98      
22 A" 711 704 2.05      
23 A" 684 677 14.29      
24 A" 178 177 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 17958.5 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 17771.7 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 PBEPBE/6-311G*
ABC
0.52564 0.22880 0.17654

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.038 -0.672 0.000
H2 1.380 -0.920 0.000
C3 -0.038 0.532 1.430
C4 -0.038 0.532 -1.430
H5 -1.040 0.977 1.526
H6 -1.040 0.977 -1.526
H7 0.167 -0.012 2.364
H8 0.167 -0.012 -2.364
H9 0.698 1.343 1.324
H10 0.698 1.343 -1.324

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.43991.86871.86872.45962.45962.46302.46302.52092.5209
H21.43992.48252.48253.43253.43252.80802.80802.70942.7094
C31.86872.48252.85941.10043.15211.10013.83791.10062.9638
C41.86872.48252.85943.15211.10043.83791.10012.96381.1006
H52.45963.43251.10043.15213.05121.77124.19091.78683.3576
H62.45963.43253.15211.10043.05124.19091.77123.35761.7868
H72.46302.80801.10013.83791.77124.19094.72801.78833.9648
H82.46302.80803.83791.10014.19091.77124.72803.96481.7883
H92.52092.70941.10062.96381.78683.35761.78833.96482.6484
H102.52092.70942.96381.10063.35761.78683.96481.78832.6484

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 109.118 P1 C3 H7 109.377
P1 C3 H9 113.674 P1 C4 H6 109.118
P1 C4 H8 109.377 P1 C4 H10 113.674
H2 P1 C3 96.373 H2 P1 C4 96.373
C3 P1 C4 99.827 H5 C3 H7 107.211
H5 C3 H9 108.554 H6 C4 H8 107.211
H6 C4 H10 108.554 H7 C3 H9 108.706
H8 C4 H10 108.706
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.241      
2 H 0.060      
3 C -0.872      
4 C -0.872      
5 H 0.241      
6 H 0.241      
7 H 0.246      
8 H 0.246      
9 H 0.234      
10 H 0.234      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.467 1.311 0.000 1.392
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.792 -1.452 0.000
y -1.452 -30.875 0.000
z 0.000 0.000 -27.204
Traceless
 xyz
x 0.247 -1.452 0.000
y -1.452 -2.877 0.000
z 0.000 0.000 2.630
Polar
3z2-r25.260
x2-y22.083
xy-1.452
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.585 -0.235 0.000
y -0.235 7.066 0.000
z 0.000 0.000 8.108


<r2> (average value of r2) Å2
<r2> 83.614
(<r2>)1/2 9.144