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

using model chemistry: CCD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CCD/3-21G*
 hartrees
Energy at 0K-457.733232
Energy at 298.15K-457.743125
HF Energy-457.299048
Nuclear repulsion energy176.210012
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 CCD/3-21G*
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 3088 2954 37.88      
2 A1 3014 2883 22.07      
3 A1 1567 1499 9.75      
4 A1 1437 1375 4.38      
5 A1 1046 1000 41.49      
6 A1 662 633 0.28      
7 A1 311 297 0.22      
8 A2 3098 2963 0.00      
9 A2 1545 1477 0.00      
10 A2 861 824 0.00      
11 A2 195 187 0.00      
12 E 3099 2964 16.95      
12 E 3099 2964 16.95      
13 E 3086 2952 5.10      
13 E 3086 2952 5.10      
14 E 3015 2884 14.13      
14 E 3015 2884 14.13      
15 E 1558 1490 10.39      
15 E 1558 1490 10.39      
16 E 1549 1482 5.18      
16 E 1549 1482 5.18      
17 E 1416 1354 6.50      
17 E 1416 1354 6.50      
18 E 1027 982 22.24      
18 E 1027 982 22.24      
19 E 912 872 0.98      
19 E 912 872 0.98      
20 E 721 690 10.41      
20 E 721 690 10.41      
21 E 263 252 0.12      
21 E 263 252 0.12      
22 E 212 203 0.01      
22 E 212 203 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 25269.0 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 24169.8 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 CCD/3-21G*
ABC
0.19052 0.19052 0.12288

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.612
C2 0.000 1.633 -0.282
C3 1.414 -0.816 -0.282
C4 -1.414 -0.816 -0.282
H5 0.000 1.501 -1.375
H6 -0.890 2.212 0.004
H7 0.890 2.212 0.004
H8 1.300 -0.751 -1.375
H9 2.361 -0.335 0.004
H10 1.471 -1.877 0.004
H11 -1.300 -0.751 -1.375
H12 -1.471 -1.877 0.004
H13 -2.361 -0.335 0.004

Atom - Atom Distances (Å)
  P1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
P11.86151.86151.86152.49062.46092.46092.49062.46092.46092.49062.46092.4609
C21.86152.82812.82811.10141.09991.09992.92693.08713.81632.92693.81633.0871
C31.86152.82812.82812.92693.81633.08711.10141.09991.09992.92693.08713.8163
C41.86152.82812.82812.92693.08713.81632.92693.81633.08711.10141.09991.0999
H52.49061.10142.92692.92691.78911.78912.60023.29403.93432.60023.93433.2940
H62.46091.09993.81633.08711.78911.78013.93434.13044.72203.29404.13042.9419
H72.46091.09993.08713.81631.78911.78013.29402.94194.13043.93434.72204.1304
H82.49062.92691.10142.92692.60023.93433.29401.78911.78912.60023.29403.9343
H92.46093.08711.09993.81633.29404.13042.94191.78911.78013.93434.13044.7220
H102.46093.81631.09993.08713.93434.72204.13041.78911.78013.29402.94194.1304
H112.49062.92692.92691.10142.60023.29403.93432.60023.93433.29401.78911.7891
H122.46093.81633.08711.09993.93434.13044.72203.29404.13042.94191.78911.7801
H132.46093.08713.81631.09993.29402.94194.13043.93434.72204.13041.78911.7801

picture of trimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C2 H5 111.834 P1 C2 H6 109.717
P1 C2 H7 109.717 P1 C3 H8 111.834
P1 C3 H9 109.717 P1 C3 H10 109.717
P1 C4 H11 111.834 P1 C4 H12 109.717
P1 C4 H13 109.717 C2 P1 C3 98.869
C2 P1 C4 98.869 C3 P1 C4 98.869
H5 C2 H6 108.726 H5 C2 H7 108.726
H6 C2 H7 108.035 H8 C3 H9 108.726
H8 C3 H10 108.726 H9 C3 H10 108.035
H11 C4 H12 108.726 H11 C4 H13 108.726
H12 C4 H13 108.035
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability