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All results from a given calculation for CH3PHCH3 (dimethylphosphine)

using model chemistry: B2PLYP=FULL/STO-3G

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/STO-3G
 hartrees
Energy at 0K-416.666193
Energy at 298.15K-416.674028
HF Energy-416.615992
Nuclear repulsion energy112.863784
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/STO-3G
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' 3523 3523 2.51      
2 A' 3516 3516 5.33      
3 A' 3342 3342 1.42      
4 A' 2817 2817 47.59      
5 A' 1728 1728 0.95      
6 A' 1725 1725 5.17      
7 A' 1574 1574 0.38      
8 A' 1189 1189 36.29      
9 A' 1101 1101 22.20      
10 A' 870 870 2.27      
11 A' 794 794 1.47      
12 A' 306 306 0.77      
13 A' 184 184 0.01      
14 A" 3522 3522 0.31      
15 A" 3516 3516 0.79      
16 A" 3344 3344 1.66      
17 A" 1725 1725 3.50      
18 A" 1721 1721 0.57      
19 A" 1557 1557 1.75      
20 A" 1197 1197 32.91      
21 A" 983 983 1.15      
22 A" 874 874 0.58      
23 A" 841 841 8.12      
24 A" 177 177 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 21061.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 21061.5 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/STO-3G
ABC
0.51272 0.23698 0.17951

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.039 -0.690 0.000
H2 1.357 -0.861 0.000
C3 -0.039 0.539 1.402
C4 -0.039 0.539 -1.402
H5 -1.030 1.001 1.502
H6 -1.030 1.001 -1.502
H7 0.184 0.029 2.349
H8 0.184 0.029 -2.349
H9 0.696 1.343 1.268
H10 0.696 1.343 -1.268

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.40651.86401.86402.46872.46872.46632.46632.50652.5065
H21.40652.42352.42353.37913.37912.77172.77172.62742.6274
C31.86402.42352.80411.09783.10291.09813.79181.09862.8840
C41.86402.42352.80413.10291.09783.79181.09812.88401.0986
H52.46873.37911.09783.10293.00371.77094.15281.77563.2817
H62.46873.37913.10291.09783.00374.15281.77093.28171.7756
H72.46632.77171.09813.79181.77094.15284.69721.77713.8819
H82.46632.77173.79181.09814.15281.77094.69723.88191.7771
H92.50652.62741.09862.88401.77563.28171.77713.88192.5357
H102.50652.62742.88401.09863.28171.77563.88191.77712.5357

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 110.223 P1 C3 H7 110.031
P1 C3 H9 113.012 P1 C4 H6 110.223
P1 C4 H8 110.031 P1 C4 H10 113.012
H2 P1 C3 94.600 H2 P1 C4 94.600
C3 P1 C4 97.557 H5 C3 H7 107.505
H5 C3 H9 107.883 H6 C4 H8 107.505
H6 C4 H10 107.883 H7 C3 H9 108.001
H8 C4 H10 108.001
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability