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All results from a given calculation for CH3PHCH3 (dimethylphosphine)

using model chemistry: B2PLYP=FULL/6-311G*

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/6-311G*
 hartrees
Energy at 0K-421.590061
Energy at 298.15K-421.597851
HF Energy-421.412464
Nuclear repulsion energy112.959112
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/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3143 3143 16.78      
2 A' 3139 3139 31.44      
3 A' 3058 3058 22.71      
4 A' 2375 2375 107.37      
5 A' 1516 1516 7.21      
6 A' 1513 1513 13.57      
7 A' 1384 1384 1.71      
8 A' 1042 1042 47.60      
9 A' 997 997 40.97      
10 A' 736 736 2.69      
11 A' 669 669 2.61      
12 A' 261 261 0.49      
13 A' 195 195 0.23      
14 A" 3143 3143 8.16      
15 A" 3140 3140 0.48      
16 A" 3060 3060 21.54      
17 A" 1505 1505 12.35      
18 A" 1500 1500 0.97      
19 A" 1365 1365 4.02      
20 A" 1052 1052 32.69      
21 A" 859 859 0.64      
22 A" 740 740 0.79      
23 A" 715 715 15.37      
24 A" 182 182 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 18643.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18643.4 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/6-311G*
ABC
0.53260 0.23165 0.17859

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.038 -0.667 0.000
H2 1.358 -0.935 0.000
C3 -0.038 0.529 1.422
C4 -0.038 0.529 -1.422
H5 -1.026 0.982 1.511
H6 -1.026 0.982 -1.511
H7 0.158 -0.008 2.351
H8 0.158 -0.008 -2.351
H9 0.701 1.325 1.316
H10 0.701 1.325 -1.316

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.42141.85801.85802.44532.44532.44972.44972.49962.4996
H21.42142.47222.47223.41203.41202.79752.79752.69652.6965
C31.85802.47222.84371.09123.12761.09103.81611.09122.9459
C41.85802.47222.84373.12761.09123.81611.09102.94591.0912
H52.44533.41201.09123.12763.02111.75804.15891.77153.3305
H62.44533.41203.12761.09123.02114.15891.75803.33051.7715
H72.44972.79751.09103.81611.75804.15894.70231.77253.9399
H82.44972.79753.81611.09104.15891.75804.70233.93991.7725
H92.49962.69651.09122.94591.77153.33051.77253.93992.6329
H102.49962.69652.94591.09123.33051.77153.93991.77252.6329

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 109.246 P1 C3 H7 109.581
P1 C3 H9 113.318 P1 C4 H6 109.246
P1 C4 H8 109.581 P1 C4 H10 113.318
H2 P1 C3 96.952 H2 P1 C4 96.952
C3 P1 C4 99.862 H5 C3 H7 107.343
H5 C3 H9 108.534 H6 C4 H8 107.343
H6 C4 H10 108.534 H7 C3 H9 108.642
H8 C4 H10 108.642
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability