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All results from a given calculation for CH3PHCH3 (dimethylphosphine)

using model chemistry: B3LYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-421.792695
Energy at 298.15K-421.800407
HF Energy-421.792695
Nuclear repulsion energy112.678544
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 B3LYP/6-31G(2df,p)
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' 3124 3014 13.78      
2 A' 3118 3009 23.35      
3 A' 3037 2931 15.05      
4 A' 2354 2272 92.34      
5 A' 1478 1426 1.95      
6 A' 1478 1426 7.48      
7 A' 1328 1282 0.15      
8 A' 1012 977 29.67      
9 A' 963 930 29.54      
10 A' 717 692 0.92      
11 A' 650 628 1.91      
12 A' 252 243 0.06      
13 A' 192 185 0.22      
14 A" 3124 3015 5.74      
15 A" 3119 3010 0.10      
16 A" 3039 2932 15.33      
17 A" 1470 1419 5.46      
18 A" 1464 1412 2.46      
19 A" 1312 1266 0.00      
20 A" 1029 993 27.25      
21 A" 826 797 0.82      
22 A" 723 698 1.58      
23 A" 698 674 13.23      
24 A" 183 177 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 18345.1 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 17703.0 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 B3LYP/6-31G(2df,p)
ABC
0.53438 0.22927 0.17748

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.038 -0.665 0.000
H2 1.361 -0.935 0.000
C3 -0.038 0.528 1.430
C4 -0.038 0.528 -1.430
H5 -1.031 0.977 1.517
H6 -1.031 0.977 -1.517
H7 0.159 -0.020 2.356
H8 0.159 -0.020 -2.356
H9 0.701 1.327 1.326
H10 0.701 1.327 -1.326

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.42461.86231.86232.44652.44652.45072.45072.50422.5042
H21.42462.47862.47863.41813.41812.79892.79892.70402.7040
C31.86232.47862.86091.09403.14301.09353.83111.09352.9637
C41.86232.47862.86093.14301.09403.83111.09352.96371.0935
H52.44653.41811.09403.14303.03471.76504.17321.77803.3481
H62.44653.41813.14301.09403.03474.17321.76503.34811.7780
H72.45072.79891.09353.83111.76504.17324.71231.78013.9582
H82.45072.79893.83111.09354.17321.76504.71233.95821.7801
H92.50422.70401.09352.96371.77803.34811.78013.95822.6522
H102.50422.70402.96371.09353.34811.77803.95821.78012.6522

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 108.906 P1 C3 H7 109.242
P1 C3 H9 113.243 P1 C4 H6 108.906
P1 C4 H8 109.242 P1 C4 H10 113.243
H2 P1 C3 96.992 H2 P1 C4 96.992
C3 P1 C4 100.369 H5 C3 H7 107.580
H5 C3 H9 108.745 H6 C4 H8 107.580
H6 C4 H10 108.745 H7 C3 H9 108.970
H8 C4 H10 108.970
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P -0.044      
2 H 0.042      
3 C -0.390      
4 C -0.390      
5 H 0.130      
6 H 0.130      
7 H 0.135      
8 H 0.135      
9 H 0.126      
10 H 0.126      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.448 1.329 0.000 1.403
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.016 -1.374 0.000
y -1.374 -29.917 0.000
z 0.000 0.000 -26.321
Traceless
 xyz
x 0.103 -1.374 0.000
y -1.374 -2.749 0.000
z 0.000 0.000 2.646
Polar
3z2-r25.291
x2-y21.902
xy-1.374
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.053 -0.259 0.000
y -0.259 6.591 0.000
z 0.000 0.000 7.737


<r2> (average value of r2) Å2
<r2> 82.649
(<r2>)1/2 9.091