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All results from a given calculation for CH3PHCH3 (dimethylphosphine)

using model chemistry: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-421.799486
Energy at 298.15K-421.807190
HF Energy-421.799486
Nuclear repulsion energy112.806962
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 TPSSh/6-31G(2df,p)
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' 3124 3014 14.96      
2 A' 3119 3010 28.16      
3 A' 3034 2928 17.77      
4 A' 2384 2300 92.42      
5 A' 1491 1439 4.78      
6 A' 1490 1438 4.03      
7 A' 1333 1286 0.02      
8 A' 1016 981 29.22      
9 A' 964 930 29.24      
10 A' 716 691 1.11      
11 A' 654 631 1.57      
12 A' 245 236 0.05      
13 A' 190 184 0.24      
14 A" 3124 3015 7.23      
15 A" 3120 3011 0.00      
16 A" 3036 2930 19.12      
17 A" 1482 1430 5.33      
18 A" 1476 1424 2.31      
19 A" 1315 1269 0.20      
20 A" 1032 996 27.66      
21 A" 821 792 0.66      
22 A" 719 694 4.40      
23 A" 697 673 10.01      
24 A" 184 178 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 18382.7 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 17739.3 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 TPSSh/6-31G(2df,p)
ABC
0.53386 0.23036 0.17807

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.038 -0.665 0.000
H2 1.358 -0.930 0.000
C3 -0.038 0.528 1.427
C4 -0.038 0.528 -1.427
H5 -1.032 0.977 1.513
H6 -1.032 0.977 -1.513
H7 0.161 -0.018 2.353
H8 0.161 -0.018 -2.353
H9 0.702 1.327 1.318
H10 0.702 1.327 -1.318

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.42051.86031.86032.44442.44442.44852.44852.50092.5009
H21.42052.47182.47183.41133.41132.79282.79282.69492.6949
C31.86032.47182.85361.09433.13581.09383.82441.09402.9528
C41.86032.47182.85363.13581.09433.82441.09382.95281.0940
H52.44443.41131.09433.13583.02621.76644.16681.77963.3383
H62.44443.41133.13581.09433.02624.16681.76643.33831.7796
H72.44852.79281.09383.82441.76644.16684.70621.78173.9471
H82.44852.79283.82441.09384.16681.76644.70623.94711.7817
H92.50092.69491.09402.95281.77963.33831.78173.94712.6360
H102.50092.69492.95281.09403.33831.77963.94711.78172.6360

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 108.870 P1 C3 H7 109.196
P1 C3 H9 113.102 P1 C4 H6 108.870
P1 C4 H8 109.196 P1 C4 H10 113.102
H2 P1 C3 96.858 H2 P1 C4 96.858
C3 P1 C4 100.167 H5 C3 H7 107.660
H5 C3 H9 108.825 H6 C4 H8 107.660
H6 C4 H10 108.825 H7 C3 H9 109.044
H8 C4 H10 109.044
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P -0.018      
2 H 0.047      
3 C -0.466      
4 C -0.466      
5 H 0.150      
6 H 0.150      
7 H 0.156      
8 H 0.156      
9 H 0.146      
10 H 0.146      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.464 1.373 0.000 1.449
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.081 -0.254 0.000
y -0.254 6.633 0.000
z 0.000 0.000 7.776


<r2> (average value of r2) Å2
<r2> 82.352
(<r2>)1/2 9.075