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-421.729796
Energy at 298.15K-421.737641
HF Energy-421.729796
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' 3168 3005 12.40      
2 A' 3158 2996 26.39      
3 A' 3072 2914 17.69      
4 A' 2410 2286 123.00      
5 A' 1523 1445 5.14      
6 A' 1519 1441 14.82      
7 A' 1385 1313 2.42      
8 A' 1047 993 39.31      
9 A' 998 946 35.25      
10 A' 747 709 1.76      
11 A' 676 642 1.56      
12 A' 268 254 0.23      
13 A' 205 195 0.17      
14 A" 3168 3005 7.50      
15 A" 3160 2997 0.13      
16 A" 3074 2916 16.59      
17 A" 1515 1437 9.93      
18 A" 1505 1427 2.75      
19 A" 1369 1298 4.14      
20 A" 1053 999 28.59      
21 A" 860 816 1.18      
22 A" 744 705 2.81      
23 A" 720 683 11.14      
24 A" 207 197 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 18774.8 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 17807.9 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
0.53087 0.23167 0.17850

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 -0.668 0.000
H2 1.357 -0.935 0.000
C3 -0.038 0.529 1.422
C4 -0.038 0.529 -1.422
H5 -1.027 0.992 1.502
H6 -1.027 0.992 -1.502
H7 0.151 -0.009 2.356
H8 0.151 -0.009 -2.356
H9 0.710 1.321 1.313
H10 0.710 1.321 -1.313

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.42071.85911.85912.44742.44742.45352.45352.49832.4983
H21.42072.47282.47283.41393.41392.80432.80432.68952.6895
C31.85912.47282.84371.09463.12071.09413.82031.09452.9440
C41.85912.47282.84373.12071.09463.82031.09412.94401.0945
H52.44743.41391.09463.12073.00331.76564.15531.77803.3241
H62.44743.41393.12071.09463.00334.15531.76563.32411.7780
H72.45352.80431.09413.82031.76564.15534.71121.77973.9423
H82.45352.80433.82031.09414.15531.76564.71123.94231.7797
H92.49832.68951.09452.94401.77803.32411.77973.94232.6266
H102.49832.68952.94401.09453.32411.77803.94231.77972.6266

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 109.152 P1 C3 H7 109.618
P1 C3 H9 112.951 P1 C4 H6 109.152
P1 C4 H8 109.618 P1 C4 H10 112.951
H2 P1 C3 96.956 H2 P1 C4 96.956
C3 P1 C4 99.776 H5 C3 H7 107.541
H5 C3 H9 108.621 H6 C4 H8 107.541
H6 C4 H10 108.621 H7 C3 H9 108.811
H8 C4 H10 108.811
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 0.240      
2 H -0.002      
3 C -0.684      
4 C -0.684      
5 H 0.188      
6 H 0.188      
7 H 0.193      
8 H 0.193      
9 H 0.184      
10 H 0.184      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.519 1.358 0.000 1.454
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.016 -1.558 0.000
y -1.558 -29.975 0.000
z 0.000 0.000 -26.285
Traceless
 xyz
x 0.114 -1.558 0.000
y -1.558 -2.825 0.000
z 0.000 0.000 2.711
Polar
3z2-r25.422
x2-y21.959
xy-1.558
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.789 -0.357 0.000
y -0.357 6.133 0.000
z 0.000 0.000 7.203


<r2> (average value of r2) Å2
<r2> 82.304
(<r2>)1/2 9.072