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

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-460.115986
Energy at 298.15K-460.125759
HF Energy-459.566814
Nuclear repulsion energy176.729003
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 MP3/6-31G*
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 3178 2983 36.18      
2 A1 3091 2901 22.84      
3 A1 1542 1448 10.06      
4 A1 1419 1332 3.72      
5 A1 1027 964 43.70      
6 A1 678 637 0.38      
7 A1 295 277 0.37      
8 A2 3193 2997 0.00      
9 A2 1519 1426 0.00      
10 A2 834 783 0.00      
11 A2 176 165 0.00      
12 E 3193 2997 14.20      
12 E 3193 2997 14.20      
13 E 3178 2983 3.83      
13 E 3178 2983 3.83      
14 E 3093 2903 12.85      
14 E 3093 2903 12.85      
15 E 1534 1440 10.89      
15 E 1534 1440 10.89      
16 E 1523 1430 5.12      
16 E 1523 1430 5.12      
17 E 1395 1309 5.86      
17 E 1395 1309 5.86      
18 E 1008 946 23.87      
18 E 1008 946 23.87      
19 E 889 834 0.37      
19 E 889 834 0.37      
20 E 740 695 10.96      
20 E 740 695 10.96      
21 E 255 240 0.15      
21 E 255 240 0.15      
22 E 205 193 0.01      
22 E 205 193 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 25489.8 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 23924.7 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 MP3/6-31G*
ABC
0.19167 0.19167 0.12292

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.602
C2 0.000 1.633 -0.278
C3 1.414 -0.816 -0.278
C4 -1.414 -0.816 -0.278
H5 0.000 1.518 -1.368
H6 -0.883 2.209 0.013
H7 0.883 2.209 0.013
H8 1.315 -0.759 -1.368
H9 2.355 -0.339 0.013
H10 1.471 -1.869 0.013
H11 -1.315 -0.759 -1.368
H12 -1.471 -1.869 0.013
H13 -2.355 -0.339 0.013

Atom - Atom Distances (Å)
  P1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
P11.85451.85451.85452.48692.45082.45082.48692.45082.45082.48692.45082.4508
C21.85452.82772.82771.09591.09391.09392.93893.08503.80962.93893.80963.0850
C31.85452.82772.82772.93893.80963.08501.09591.09391.09392.93893.08503.8096
C41.85452.82772.82772.93893.08503.80962.93893.80963.08501.09591.09391.0939
H52.48691.09592.93892.93891.77831.77832.62973.30163.94292.62973.94293.3016
H62.45081.09393.80963.08501.77831.76673.94294.12044.70913.30164.12042.9425
H72.45081.09393.08503.80961.77831.76673.30162.94254.12043.94294.70914.1204
H82.48692.93891.09592.93892.62973.94293.30161.77831.77832.62973.30163.9429
H92.45083.08501.09393.80963.30164.12042.94251.77831.76673.94294.12044.7091
H102.45083.80961.09393.08503.94294.70914.12041.77831.76673.30162.94254.1204
H112.48692.93892.93891.09592.62973.30163.94292.62973.94293.30161.77831.7783
H122.45083.80963.08501.09393.94294.12044.70913.30164.12042.94251.77831.7667
H132.45083.08503.80961.09393.30162.94254.12043.94294.70914.12041.77831.7667

picture of trimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C2 H5 112.330 P1 C2 H6 109.742
P1 C2 H7 109.742 P1 C3 H8 112.330
P1 C3 H9 109.742 P1 C3 H10 109.742
P1 C4 H11 112.330 P1 C4 H12 109.742
P1 C4 H13 109.742 C2 P1 C3 99.350
C2 P1 C4 99.350 C3 P1 C4 99.350
H5 C2 H6 108.602 H5 C2 H7 108.602
H6 C2 H7 107.702 H8 C3 H9 108.602
H8 C3 H10 108.602 H9 C3 H10 107.702
H11 C4 H12 108.602 H11 C4 H13 108.602
H12 C4 H13 107.702
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability