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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-421.400104
Energy at 298.15K-421.407794
HF Energy-421.314620
Nuclear repulsion energy110.503335
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' 3181 3181 16.12      
2 A' 3174 3174 28.59      
3 A' 3078 3078 20.98      
4 A' 2244 2244 155.12      
5 A' 1541 1541 3.54      
6 A' 1540 1540 18.69      
7 A' 1404 1404 1.03      
8 A' 1048 1048 31.74      
9 A' 1016 1016 44.05      
10 A' 723 723 4.33      
11 A' 628 628 1.07      
12 A' 246 246 0.16      
13 A' 176 176 0.14      
14 A" 3181 3181 5.61      
15 A" 3175 3175 3.04      
16 A" 3080 3080 22.06      
17 A" 1532 1532 13.09      
18 A" 1529 1529 1.30      
19 A" 1386 1386 1.55      
20 A" 1043 1043 26.64      
21 A" 890 890 0.66      
22 A" 746 746 0.35      
23 A" 681 681 8.39      
24 A" 167 167 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 18704.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18704.2 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
0.50400 0.22112 0.16957

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 -0.039 -0.689 0.000
H2 1.385 -0.966 0.000
C3 -0.039 0.550 1.462
C4 -0.039 0.550 -1.462
H5 -1.036 0.991 1.544
H6 -1.036 0.991 -1.544
H7 0.177 0.010 2.387
H8 0.177 0.010 -2.387
H9 0.697 1.347 1.327
H10 0.697 1.347 -1.327

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.45141.91621.91622.49012.49012.49642.49642.53972.5397
H21.45142.54262.54263.47533.47532.84762.84762.75452.7545
C31.91622.54262.92301.09293.19721.09283.89191.09342.9923
C41.91622.54262.92303.19721.09293.89191.09282.99231.0934
H52.49013.47531.09293.19723.08841.77304.22911.78253.3727
H62.49013.47533.19721.09293.08844.22911.77303.37271.7825
H72.49642.84761.09283.89191.77304.22914.77331.78333.9812
H82.49642.84763.89191.09284.22911.77304.77333.98121.7833
H92.53972.75451.09342.99231.78253.37271.78333.98122.6543
H102.53972.75452.99231.09343.37271.78253.98121.78332.6543

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 108.577 P1 C3 H7 109.038
P1 C3 H9 112.195 P1 C4 H6 108.577
P1 C4 H8 109.038 P1 C4 H10 112.195
H2 P1 C3 97.090 H2 P1 C4 97.090
C3 P1 C4 99.409 H5 C3 H7 108.416
H5 C3 H9 109.227 H6 C4 H8 108.416
H6 C4 H10 109.227 H7 C3 H9 109.313
H8 C4 H10 109.313
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability