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All results from a given calculation for CH3PHCH3 (dimethylphosphine)

using model chemistry: B2PLYP=FULL/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-421.533159
Energy at 298.15K-421.540916
HF Energy-421.388691
Nuclear repulsion energy112.812426
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/6-31+G**
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' 3169 3014 14.09      
2 A' 3163 3008 27.64      
3 A' 3075 2924 21.87      
4 A' 2426 2307 117.04      
5 A' 1503 1429 6.47      
6 A' 1499 1425 14.08      
7 A' 1370 1303 1.72      
8 A' 1034 983 31.75      
9 A' 986 938 32.48      
10 A' 730 695 3.01      
11 A' 668 635 2.95      
12 A' 256 244 0.47      
13 A' 191 182 0.11      
14 A" 3170 3014 6.80      
15 A" 3165 3010 0.39      
16 A" 3077 2926 22.51      
17 A" 1494 1421 9.74      
18 A" 1487 1414 2.90      
19 A" 1353 1287 2.57      
20 A" 1046 994 29.51      
21 A" 850 809 0.21      
22 A" 736 700 2.08      
23 A" 716 681 14.70      
24 A" 177 169 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 18670.0 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 17755.2 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/6-31+G**
ABC
0.53271 0.23047 0.17788

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.038 -0.667 0.000
H2 1.353 -0.943 0.000
C3 -0.038 0.529 1.427
C4 -0.038 0.529 -1.427
H5 -1.027 0.982 1.512
H6 -1.027 0.982 -1.512
H7 0.158 -0.011 2.355
H8 0.158 -0.011 -2.355
H9 0.703 1.324 1.319
H10 0.703 1.324 -1.319

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.41761.86151.86152.44612.44612.45192.45192.50042.5004
H21.41762.47692.47693.41403.41402.80012.80012.70192.7019
C31.86152.47692.85321.09163.13341.09133.82461.09172.9532
C41.86152.47692.85323.13341.09163.82461.09132.95321.0917
H52.44613.41401.09163.13343.02341.76094.16391.77413.3356
H62.44613.41403.13341.09163.02344.16391.76093.33561.7741
H72.45192.80011.09133.82461.76094.16394.70911.77513.9469
H82.45192.80013.82461.09134.16391.76094.70913.94691.7751
H92.50042.70191.09172.95321.77413.33561.77513.94692.6389
H102.50042.70192.95321.09173.33561.77413.94691.77512.6389

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 109.050 P1 C3 H7 109.490
P1 C3 H9 113.104 P1 C4 H6 109.050
P1 C4 H8 109.490 P1 C4 H10 113.104
H2 P1 C3 97.185 H2 P1 C4 97.185
C3 P1 C4 100.057 H5 C3 H7 107.544
H5 C3 H9 108.697 H6 C4 H8 107.544
H6 C4 H10 108.697 H7 C3 H9 108.803
H8 C4 H10 108.803
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability