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

using model chemistry: QCISD/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at QCISD/6-31G**
 hartrees
Energy at 0K-460.202426
Energy at 298.15K-460.212171
HF Energy-459.582044
Nuclear repulsion energy176.767238
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 QCISD/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 A1 3186 2999 45.58      
2 A1 3095 2913 22.60      
3 A1 1537 1447 5.85      
4 A1 1410 1328 1.93      
5 A1 1019 959 37.10      
6 A1 671 632 0.61      
7 A1 293 276 0.59      
8 A2 3197 3010 0.00      
9 A2 1517 1428 0.00      
10 A2 826 777 0.00      
11 A2 168 158 0.00      
12 E 3198 3011 19.86      
12 E 3198 3011 19.86      
13 E 3185 2998 5.10      
13 E 3185 2998 5.10      
14 E 3095 2914 17.10      
14 E 3095 2914 17.10      
15 E 1531 1442 6.76      
15 E 1531 1442 6.76      
16 E 1518 1429 4.55      
16 E 1518 1429 4.55      
17 E 1386 1305 1.79      
17 E 1386 1305 1.79      
18 E 999 940 20.98      
18 E 999 940 20.98      
19 E 881 829 0.14      
19 E 881 829 0.14      
20 E 732 689 11.55      
20 E 732 689 11.55      
21 E 254 239 0.21      
21 E 254 239 0.21      
22 E 203 191 0.00      
22 E 203 191 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25439.8 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 23949.0 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 QCISD/6-31G**
ABC
0.19150 0.19150 0.12314

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.607
C2 0.000 1.632 -0.280
C3 1.413 -0.816 -0.280
C4 -1.413 -0.816 -0.280
H5 0.000 1.513 -1.366
H6 -0.881 2.207 0.007
H7 0.881 2.207 0.007
H8 1.311 -0.757 -1.366
H9 2.352 -0.341 0.007
H10 1.471 -1.866 0.007
H11 -1.311 -0.757 -1.366
H12 -1.471 -1.866 0.007
H13 -2.352 -0.341 0.007

Atom - Atom Distances (Å)
  P1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
P11.85691.85691.85692.48622.45052.45052.48622.45052.45052.48622.45052.4505
C21.85692.82592.82591.09231.09071.09072.93263.08253.80532.93263.80533.0825
C31.85692.82592.82592.93263.80533.08251.09231.09071.09072.93263.08253.8053
C41.85692.82592.82592.93263.08253.80532.93263.80533.08251.09231.09071.0907
H52.48621.09232.93262.93261.77291.77292.62113.29443.93332.62113.93333.2944
H62.45051.09073.80533.08251.77291.76183.93334.11564.70323.29444.11562.9414
H72.45051.09073.08253.80531.77291.76183.29442.94144.11563.93334.70324.1156
H82.48622.93261.09232.93262.62113.93333.29441.77291.77292.62113.29443.9333
H92.45053.08251.09073.80533.29444.11562.94141.77291.76183.93334.11564.7032
H102.45053.80531.09073.08253.93334.70324.11561.77291.76183.29442.94144.1156
H112.48622.93262.93261.09232.62113.29443.93332.62113.93333.29441.77291.7729
H122.45053.80533.08251.09073.93334.11564.70323.29444.11562.94141.77291.7618
H132.45053.08253.80531.09073.29442.94144.11563.93334.70324.11561.77291.7618

picture of trimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C2 H5 112.309 P1 C2 H6 109.729
P1 C2 H7 109.729 P1 C3 H8 112.308
P1 C3 H9 109.729 P1 C3 H10 109.729
P1 C4 H11 112.308 P1 C4 H12 109.729
P1 C4 H13 109.729 C2 P1 C3 99.090
C2 P1 C4 99.090 C3 P1 C4 99.090
H5 C2 H6 108.610 H5 C2 H7 108.610
H6 C2 H7 107.737 H8 C3 H9 108.610
H8 C3 H10 108.610 H9 C3 H10 107.737
H11 C4 H12 108.610 H11 C4 H13 108.610
H12 C4 H13 107.737
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability