return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3PHCH3 (dimethylphosphine)

using model chemistry: wB97X-D/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 wB97X-D/6-31G**
 hartrees
Energy at 0K-421.739671
Energy at 298.15K-421.747525
HF Energy-421.739671
Nuclear repulsion energy 
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 wB97X-D/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' 3170 3170 11.89      
2 A' 3160 3160 25.36      
3 A' 3068 3068 17.21      
4 A' 2383 2383 109.25      
5 A' 1506 1506 5.45      
6 A' 1501 1501 12.97      
7 A' 1367 1367 2.25      
8 A' 1039 1039 37.52      
9 A' 990 990 33.50      
10 A' 744 744 1.81      
11 A' 675 675 1.62      
12 A' 268 268 0.24      
13 A' 208 208 0.15      
14 A" 3170 3170 7.01      
15 A" 3161 3161 0.14      
16 A" 3070 3070 16.10      
17 A" 1498 1498 9.08      
18 A" 1486 1486 2.80      
19 A" 1351 1351 3.82      
20 A" 1047 1047 28.33      
21 A" 853 853 1.12      
22 A" 740 740 3.58      
23 A" 718 718 10.80      
24 A" 211 211 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 18690.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18690.9 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 wB97X-D/6-31G**
ABC
0.53245 0.23153 0.17856

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.038 -0.667 0.000
H2 1.357 -0.938 0.000
C3 -0.038 0.529 1.423
C4 -0.038 0.529 -1.423
H5 -1.026 0.992 1.500
H6 -1.026 0.992 -1.500
H7 0.147 -0.012 2.354
H8 0.147 -0.012 -2.354
H9 0.712 1.318 1.317
H10 0.712 1.318 -1.317

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.42051.85841.85842.44482.44482.45082.45082.49692.4969
H21.42052.47372.47373.41293.41292.80412.80412.69032.6903
C31.85842.47372.84531.09353.11981.09303.82001.09342.9476
C41.85842.47372.84533.11981.09353.82001.09302.94761.0934
H52.44483.41291.09353.11983.00051.76414.15221.77693.3255
H62.44483.41293.11981.09353.00054.15221.76413.32551.7769
H72.45082.80411.09303.82001.76414.15224.70881.77863.9450
H82.45082.80413.82001.09304.15221.76414.70883.94501.7786
H92.49692.69031.09342.94761.77693.32551.77863.94502.6334
H102.49692.69032.94761.09343.32551.77693.94501.77862.6334

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 109.069 P1 C3 H7 109.532
P1 C3 H9 112.962 P1 C4 H6 109.069
P1 C4 H8 109.532 P1 C4 H10 112.962
H2 P1 C3 97.048 H2 P1 C4 97.048
C3 P1 C4 99.910 H5 C3 H7 107.575
H5 C3 H9 108.685 H6 C4 H8 107.575
H6 C4 H10 108.685 H7 C3 H9 108.872
H8 C4 H10 108.872
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.278      
2 H -0.037      
3 C -0.562      
4 C -0.562      
5 H 0.147      
6 H 0.147      
7 H 0.151      
8 H 0.151      
9 H 0.143      
10 H 0.143      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.516 1.350 0.000 1.445
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.013 -1.545 0.000
y -1.545 -29.955 0.000
z 0.000 0.000 -26.267
Traceless
 xyz
x 0.098 -1.545 0.000
y -1.545 -2.815 0.000
z 0.000 0.000 2.717
Polar
3z2-r25.434
x2-y21.941
xy-1.545
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.852 -0.357 0.000
y -0.357 6.210 0.000
z 0.000 0.000 7.310


<r2> (average value of r2) Å2
<r2> 82.265
(<r2>)1/2 9.070