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: B2PLYP=FULL/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 B2PLYP=FULL/6-31G**
 hartrees
Energy at 0K-421.528694
Energy at 298.15K-421.536473
HF Energy-421.385841
Nuclear repulsion energy112.847111
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 B2PLYP=FULL/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' 3180 3180 14.27      
2 A' 3175 3175 27.69      
3 A' 3085 3085 16.23      
4 A' 2429 2429 113.03      
5 A' 1517 1517 2.15      
6 A' 1516 1516 11.19      
7 A' 1378 1378 0.66      
8 A' 1041 1041 35.41      
9 A' 995 995 33.88      
10 A' 733 733 2.14      
11 A' 670 670 1.87      
12 A' 257 257 0.20      
13 A' 194 194 0.14      
14 A" 3180 3180 6.77      
15 A" 3176 3176 0.06      
16 A" 3087 3087 16.33      
17 A" 1509 1509 7.52      
18 A" 1502 1502 2.75      
19 A" 1361 1361 0.83      
20 A" 1053 1053 31.36      
21 A" 856 856 0.70      
22 A" 739 739 1.47      
23 A" 718 718 12.73      
24 A" 184 184 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 18766.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18766.7 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 B2PLYP=FULL/6-31G**
ABC
0.53318 0.23054 0.17795

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.038 -0.666 0.000
H2 1.353 -0.942 0.000
C3 -0.038 0.529 1.427
C4 -0.038 0.529 -1.427
H5 -1.028 0.979 1.513
H6 -1.028 0.979 -1.513
H7 0.161 -0.011 2.353
H8 0.161 -0.011 -2.353
H9 0.700 1.326 1.319
H10 0.700 1.326 -1.319

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.41771.86121.86122.44482.44482.45022.45022.50022.5002
H21.41772.47652.47653.41283.41282.79692.79692.70342.7034
C31.86122.47652.85311.09093.13451.09063.82291.09082.9522
C41.86122.47652.85313.13451.09093.82291.09062.95221.0908
H52.44483.41281.09093.13453.02651.76014.16401.77253.3354
H62.44483.41283.13451.09093.02654.16401.76013.33541.7725
H72.45022.79691.09063.82291.76014.16404.70551.77413.9445
H82.45022.79693.82291.09064.16401.76014.70553.94451.7741
H92.50022.70341.09082.95221.77253.33541.77413.94452.6378
H102.50022.70342.95221.09083.33541.77253.94451.77412.6378

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 109.015 P1 C3 H7 109.425
P1 C3 H9 113.166 P1 C4 H6 109.015
P1 C4 H8 109.425 P1 C4 H10 113.166
H2 P1 C3 97.173 H2 P1 C4 97.173
C3 P1 C4 100.077 H5 C3 H7 107.575
H5 C3 H9 108.669 H6 C4 H8 107.575
H6 C4 H10 108.669 H7 C3 H9 108.837
H8 C4 H10 108.837
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability