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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-421.503205
Energy at 298.15K-421.510986
HF Energy-421.374612
Nuclear repulsion energy112.739894
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' 3171 3008 14.42      
2 A' 3166 3003 28.41      
3 A' 3082 2923 16.80      
4 A' 2424 2299 123.46      
5 A' 1531 1452 1.59      
6 A' 1529 1450 13.69      
7 A' 1393 1321 0.87      
8 A' 1047 993 36.72      
9 A' 1002 950 35.96      
10 A' 736 698 2.07      
11 A' 671 636 1.73      
12 A' 258 245 0.18      
13 A' 194 184 0.16      
14 A" 3172 3008 6.94      
15 A" 3167 3004 0.22      
16 A" 3084 2925 16.55      
17 A" 1522 1443 9.01      
18 A" 1516 1438 2.31      
19 A" 1376 1305 1.26      
20 A" 1056 1002 31.11      
21 A" 862 818 0.80      
22 A" 743 704 1.05      
23 A" 720 683 12.70      
24 A" 185 176 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 18803.0 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 17832.8 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
0.53173 0.23037 0.17776

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 -0.038 -0.667 0.000
H2 1.356 -0.943 0.000
C3 -0.038 0.529 1.427
C4 -0.038 0.529 -1.427
H5 -1.030 0.981 1.515
H6 -1.030 0.981 -1.515
H7 0.162 -0.010 2.356
H8 0.162 -0.010 -2.356
H9 0.700 1.328 1.318
H10 0.700 1.328 -1.318

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.42131.86201.86202.44812.44812.45362.45362.50272.5027
H21.42132.47932.47933.41873.41872.80092.80092.70662.7066
C31.86202.47932.85321.09313.13661.09283.82571.09302.9522
C41.86202.47932.85323.13661.09313.82571.09282.95221.0930
H52.44813.41871.09313.13663.02951.76324.16911.77533.3373
H62.44813.41873.13661.09313.02954.16911.76323.33731.7753
H72.45362.80091.09283.82571.76324.16914.71121.77703.9467
H82.45362.80093.82571.09284.16911.76324.71123.94671.7770
H92.50272.70661.09302.95221.77533.33731.77703.94672.6360
H102.50272.70662.95221.09303.33731.77533.94671.77702.6360

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 109.093 P1 C3 H7 109.510
P1 C3 H9 113.175 P1 C4 H6 109.093
P1 C4 H8 109.510 P1 C4 H10 113.175
H2 P1 C3 97.164 H2 P1 C4 97.164
C3 P1 C4 100.021 H5 C3 H7 107.538
H5 C3 H9 108.599 H6 C4 H8 107.538
H6 C4 H10 108.599 H7 C3 H9 108.771
H8 C4 H10 108.771
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability