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All results from a given calculation for CH3PHCH3 (dimethylphosphine)

using model chemistry: BLYP/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/cc-pVDZ
 hartrees
Energy at 0K-421.701607
Energy at 298.15K-421.709178
HF Energy-421.701607
Nuclear repulsion energy110.962407
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 BLYP/cc-pVDZ
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' 3039 3043 15.79      
2 A' 3034 3039 29.62      
3 A' 2950 2955 19.57      
4 A' 2241 2244 103.64      
5 A' 1411 1414 2.15      
6 A' 1410 1412 7.36      
7 A' 1263 1265 0.03      
8 A' 973 975 23.73      
9 A' 922 924 24.15      
10 A' 697 698 0.31      
11 A' 610 611 2.32      
12 A' 241 241 0.10      
13 A' 186 186 0.14      
14 A" 3039 3044 7.72      
15 A" 3035 3040 0.03      
16 A" 2952 2957 22.12      
17 A" 1403 1405 6.48      
18 A" 1398 1400 1.68      
19 A" 1245 1247 0.47      
20 A" 983 985 26.22      
21 A" 794 795 1.07      
22 A" 699 701 0.10      
23 A" 654 655 16.24      
24 A" 177 177 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 17677.4 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 17705.6 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 BLYP/cc-pVDZ
ABC
0.51398 0.22333 0.17229

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.038 -0.680 0.000
H2 1.389 -0.929 0.000
C3 -0.038 0.539 1.449
C4 -0.038 0.539 -1.449
H5 -1.049 0.989 1.537
H6 -1.049 0.989 -1.537
H7 0.166 -0.015 2.387
H8 0.166 -0.015 -2.387
H9 0.707 1.352 1.338
H10 0.707 1.352 -1.338

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.44921.89371.89372.48332.48332.48682.48682.54502.5450
H21.44922.50872.50873.46153.46152.83382.83382.73142.7314
C31.89372.50872.89841.10913.18421.10863.88181.10892.9981
C41.89372.50872.89843.18421.10913.88181.10862.99811.1089
H52.48333.46151.10913.18423.07371.79084.22891.80403.3886
H62.48333.46153.18421.10913.07374.22891.79083.38861.8040
H72.48682.83381.10863.88181.79084.22894.77491.80594.0054
H82.48682.83383.88181.10864.22891.79084.77494.00541.8059
H92.54502.73141.10892.99811.80403.38861.80594.00542.6770
H102.54502.73142.99811.10893.38861.80404.00541.80592.6770

picture of dimethylphosphine state 1 conformation 1
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