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All results from a given calculation for P(CH3)3 (trimethylphosphine)

using model chemistry: MP2=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-454.601952
Energy at 298.15K-454.611759
HF Energy-454.399908
Nuclear repulsion energy176.322791
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 MP2=FULL/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3532 3140 9.91      
2 A1 3354 2981 1.68      
3 A1 1747 1553 2.11      
4 A1 1601 1423 0.41      
5 A1 1130 1004 25.51      
6 A1 788 700 0.14      
7 A1 349 310 1.94      
8 A2 3542 3148 0.00      
9 A2 1743 1549 0.00      
10 A2 966 859 0.00      
11 A2 179 159 0.00      
12 E 3543 3149 2.87      
12 E 3543 3149 2.87      
13 E 3532 3140 0.98      
13 E 3532 3140 0.98      
14 E 3357 2984 2.41      
14 E 3357 2984 2.41      
15 E 1746 1552 1.50      
15 E 1746 1552 1.50      
16 E 1743 1549 2.23      
16 E 1743 1549 2.23      
17 E 1579 1403 4.20      
17 E 1579 1403 4.20      
18 E 1106 983 19.53      
18 E 1106 983 19.53      
19 E 1006 895 0.52      
19 E 1006 895 0.52      
20 E 850 755 6.67      
20 E 850 755 6.67      
21 E 294 261 0.56      
21 E 294 261 0.56      
22 E 195 173 0.02      
22 E 195 173 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 28414.8 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 25257.9 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 MP2=FULL/STO-3G
ABC
0.19037 0.19037 0.12500

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.637
C2 0.000 1.615 -0.291
C3 1.399 -0.808 -0.291
C4 -1.399 -0.808 -0.291
H5 0.000 1.481 -1.386
H6 -0.889 2.210 -0.025
H7 0.889 2.210 -0.025
H8 1.283 -0.741 -1.386
H9 2.358 -0.335 -0.025
H10 1.470 -1.875 -0.025
H11 -1.283 -0.741 -1.386
H12 -1.470 -1.875 -0.025
H13 -2.358 -0.335 -0.025

Atom - Atom Distances (Å)
  P1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
P11.86301.86301.86302.50772.47212.47212.50772.47212.47212.50772.47212.4721
C21.86302.79762.79761.10311.10201.10202.89753.07203.79592.89753.79593.0720
C31.86302.79762.79772.89753.79593.07201.10311.10201.10202.89753.07203.7959
C41.86302.79762.79772.89753.07203.79592.89753.79593.07201.10311.10201.1020
H52.50771.10312.89752.89751.78161.78162.56603.27353.90852.56603.90853.2735
H62.47211.10203.79593.07201.78161.77723.90854.12564.71633.27354.12562.9392
H72.47211.10203.07203.79591.78161.77723.27352.93924.12563.90854.71634.1256
H82.50772.89751.10312.89752.56603.90853.27351.78161.78162.56603.27353.9085
H92.47213.07201.10203.79593.27354.12562.93921.78161.77723.90854.12564.7163
H102.47213.79591.10203.07203.90854.71634.12561.78161.77723.27352.93924.1256
H112.50772.89752.89751.10312.56603.27353.90852.56603.90853.27351.78161.7816
H122.47213.79593.07201.10203.90854.12564.71633.27354.12562.93921.78161.7772
H132.47213.07203.79591.10203.27352.93924.12563.90854.71634.12561.78161.7772

picture of trimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C2 H5 112.923 P1 C2 H6 110.325
P1 C2 H7 110.325 P1 C3 H8 112.923
P1 C3 H9 110.325 P1 C3 H10 110.325
P1 C4 H11 112.923 P1 C4 H12 110.325
P1 C4 H13 110.325 C2 P1 C3 97.329
C2 P1 C4 97.329 C3 P1 C4 97.329
H5 C2 H6 107.794 H5 C2 H7 107.794
H6 C2 H7 107.481 H8 C3 H9 107.794
H8 C3 H10 107.794 H9 C3 H10 107.482
H11 C4 H12 107.794 H11 C4 H13 107.794
H12 C4 H13 107.482
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability