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=FULLultrafine/3-21G*

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=FULLultrafine/3-21G*
 hartrees
Energy at 0K-419.415741
Energy at 298.15K 
HF Energy-419.314016
Nuclear repulsion energy112.819371
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=FULLultrafine/3-21G*
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' 3142 3142 17.25      
2 A' 3139 3139 21.65      
3 A' 3063 3063 15.05      
4 A' 2444 2444 93.12      
5 A' 1570 1570 4.58      
6 A' 1566 1566 16.07      
7 A' 1426 1426 2.98      
8 A' 1076 1076 39.66      
9 A' 1029 1029 38.68      
10 A' 763 763 1.32      
11 A' 672 672 1.84      
12 A' 269 269 0.16      
13 A' 197 197 0.18      
14 A" 3142 3142 5.90      
15 A" 3139 3139 0.50      
16 A" 3065 3065 15.65      
17 A" 1559 1559 12.46      
18 A" 1555 1555 1.21      
19 A" 1411 1411 5.37      
20 A" 1087 1087 29.17      
21 A" 892 892 2.04      
22 A" 776 776 0.02      
23 A" 718 718 14.14      
24 A" 194 194 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 18947.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18947.1 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=FULLultrafine/3-21G*
ABC
0.52867 0.23183 0.17836

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.038 -0.671 0.000
H2 1.357 -0.918 0.000
C3 -0.038 0.531 1.422
C4 -0.038 0.531 -1.422
H5 -1.032 0.981 1.512
H6 -1.032 0.981 -1.512
H7 0.173 -0.004 2.353
H8 0.173 -0.004 -2.353
H9 0.698 1.330 1.297
H10 0.698 1.330 -1.297

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.41741.86191.86192.45012.45012.45472.45472.49622.4962
H21.41742.46372.46373.40613.40612.78832.78832.67802.6780
C31.86192.46372.84351.09453.13001.09423.81801.09402.9282
C41.86192.46372.84353.13001.09453.81801.09422.92821.0940
H52.45013.40611.09453.13003.02411.76864.16631.77833.3179
H62.45013.40613.13001.09453.02414.16631.76863.31791.7783
H72.45472.78831.09423.81801.76864.16634.70551.78043.9215
H82.45472.78833.81801.09424.16631.76864.70553.92151.7804
H92.49622.67801.09402.92821.77833.31791.78043.92152.5945
H102.49622.67802.92821.09403.31791.77833.92151.78042.5945

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 109.172 P1 C3 H7 109.514
P1 C3 H9 112.628 P1 C4 H6 109.172
P1 C4 H8 109.514 P1 C4 H10 112.628
H2 P1 C3 96.458 H2 P1 C4 96.458
C3 P1 C4 99.562 H5 C3 H7 107.811
H5 C3 H9 108.697 H6 C4 H8 107.811
H6 C4 H10 108.697 H7 C3 H9 108.900
H8 C4 H10 108.900
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability