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

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-460.041751
Energy at 298.15K-460.051630
HF Energy-459.567188
Nuclear repulsion energy177.189602
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 CID/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 3228 2981 39.76      
2 A1 3143 2903 21.44      
3 A1 1573 1453 9.92      
4 A1 1450 1339 3.80      
5 A1 1048 968 45.00      
6 A1 693 640 0.45      
7 A1 303 280 0.38      
8 A2 3239 2992 0.00      
9 A2 1550 1432 0.00      
10 A2 849 784 0.00      
11 A2 183 169 0.00      
12 E 3240 2992 16.18      
12 E 3240 2992 16.18      
13 E 3227 2981 3.78      
13 E 3227 2981 3.78      
14 E 3142 2902 15.30      
14 E 3142 2902 15.30      
15 E 1565 1446 10.78      
15 E 1565 1446 10.78      
16 E 1554 1435 5.11      
16 E 1554 1435 5.11      
17 E 1427 1318 6.49      
17 E 1427 1318 6.49      
18 E 1027 949 24.96      
18 E 1027 949 24.96      
19 E 904 835 0.24      
19 E 904 835 0.24      
20 E 756 698 11.86      
20 E 756 698 11.86      
21 E 260 240 0.17      
21 E 260 240 0.17      
22 E 212 196 0.01      
22 E 212 196 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 25941.7 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 23962.4 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 CID/6-31G*
ABC
0.19268 0.19268 0.12320

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.596
C2 0.000 1.631 -0.275
C3 1.412 -0.815 -0.275
C4 -1.412 -0.815 -0.275
H5 0.000 1.523 -1.361
H6 -0.879 2.205 0.016
H7 0.879 2.205 0.016
H8 1.319 -0.762 -1.361
H9 2.349 -0.341 0.016
H10 1.470 -1.864 0.016
H11 -1.319 -0.762 -1.361
H12 -1.470 -1.864 0.016
H13 -2.349 -0.341 0.016

Atom - Atom Distances (Å)
  P1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
P11.84911.84911.84912.48052.44372.44372.48052.44372.44372.48052.44372.4437
C21.84912.82462.82461.09131.08981.08982.94003.08073.80242.94003.80243.0807
C31.84912.82462.82462.94003.80243.08071.09131.08981.08982.94003.08073.8024
C41.84912.82462.82462.94003.08073.80242.94003.80243.08071.09131.08981.0898
H52.48051.09132.94002.94001.77051.77052.63853.30013.94102.63853.94103.3001
H62.44371.08983.80243.08071.77051.75873.94104.11154.69833.30014.11152.9396
H72.44371.08983.08073.80241.77051.75873.30012.93964.11153.94104.69834.1115
H82.48052.94001.09132.94002.63853.94103.30011.77051.77052.63853.30013.9410
H92.44373.08071.08983.80243.30014.11152.93961.77051.75873.94104.11154.6983
H102.44373.80241.08983.08073.94104.69834.11151.77051.75873.30012.93964.1115
H112.48052.94002.94001.09132.63853.30013.94102.63853.94103.30011.77051.7705
H122.44373.80243.08071.08983.94104.11154.69833.30014.11152.93961.77051.7587
H132.44373.08073.80241.08983.30012.93964.11153.94104.69834.11151.77051.7587

picture of trimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C2 H5 112.475 P1 C2 H6 109.793
P1 C2 H7 109.793 P1 C3 H8 112.475
P1 C3 H9 109.793 P1 C3 H10 109.793
P1 C4 H11 112.475 P1 C4 H12 109.793
P1 C4 H13 109.793 C2 P1 C3 99.596
C2 P1 C4 99.596 C3 P1 C4 99.596
H5 C2 H6 108.530 H5 C2 H7 108.530
H6 C2 H7 107.586 H8 C3 H9 108.530
H8 C3 H10 108.530 H9 C3 H10 107.586
H11 C4 H12 108.530 H11 C4 H13 108.530
H12 C4 H13 107.586
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability