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All results from a given calculation for CH3PHCH3 (dimethylphosphine)

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/cc-pVDZ
 hartrees
Energy at 0K-421.537216
Energy at 298.15K-421.544958
HF Energy-421.393745
Nuclear repulsion energy112.339072
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/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' 3157 3026 11.97      
2 A' 3151 3021 23.38      
3 A' 3057 2930 17.04      
4 A' 2391 2292 98.25      
5 A' 1468 1407 1.36      
6 A' 1467 1407 11.19      
7 A' 1320 1266 0.51      
8 A' 1014 971 26.12      
9 A' 962 922 25.56      
10 A' 724 694 0.83      
11 A' 661 634 2.05      
12 A' 255 244 0.17      
13 A' 194 186 0.12      
14 A" 3157 3026 5.86      
15 A" 3153 3022 0.00      
16 A" 3059 2932 19.11      
17 A" 1460 1399 6.50      
18 A" 1454 1394 2.68      
19 A" 1303 1249 0.06      
20 A" 1030 987 26.76      
21 A" 828 794 0.97      
22 A" 727 697 3.41      
23 A" 705 676 13.10      
24 A" 185 177 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 18440.4 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 17675.1 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/cc-pVDZ
ABC
0.52571 0.22971 0.17701

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.038 -0.671 0.000
H2 1.368 -0.936 0.000
C3 -0.038 0.532 1.428
C4 -0.038 0.532 -1.428
H5 -1.038 0.985 1.511
H6 -1.038 0.985 -1.511
H7 0.160 -0.012 2.363
H8 0.160 -0.012 -2.363
H9 0.706 1.335 1.316
H10 0.706 1.335 -1.316

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.43031.86751.86752.45462.45462.46112.46112.51222.5122
H21.43032.48382.48383.42893.42892.80952.80952.70652.7065
C31.86752.48382.85581.10083.13691.10033.83501.10052.9540
C41.86752.48382.85583.13691.10083.83501.10032.95401.1005
H52.45463.42891.10083.13693.02141.77694.17571.78993.3398
H62.45463.42893.13691.10083.02144.17571.77693.33981.7899
H72.46112.80951.10033.83501.77694.17574.72601.79203.9557
H82.46112.80953.83501.10034.17571.77694.72603.95571.7920
H92.51222.70651.10052.95401.78993.33981.79203.95572.6314
H102.51222.70652.95401.10053.33981.78993.95571.79202.6314

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 108.807 P1 C3 H7 109.306
P1 C3 H9 113.095 P1 C4 H6 108.807
P1 C4 H8 109.306 P1 C4 H10 113.095
H2 P1 C3 96.839 H2 P1 C4 96.839
C3 P1 C4 99.742 H5 C3 H7 107.660
H5 C3 H9 108.802 H6 C4 H8 107.660
H6 C4 H10 108.802 H7 C3 H9 109.027
H8 C4 H10 109.027
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability