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

using model chemistry: CCD/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 CCD/6-31G
 hartrees
Energy at 0K-459.870615
Energy at 298.15K-459.880109
HF Energy-459.476526
Nuclear repulsion energy171.730571
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/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 3115 2989 43.46      
2 A1 3024 2901 26.75      
3 A1 1531 1469 11.20      
4 A1 1409 1352 2.54      
5 A1 1017 976 44.04      
6 A1 606 581 0.62      
7 A1 271 260 0.34      
8 A2 3130 3003 0.00      
9 A2 1510 1449 0.00      
10 A2 858 823 0.00      
11 A2 151 145 0.00      
12 E 3131 3004 18.76      
12 E 3131 3004 18.76      
13 E 3114 2988 6.44      
13 E 3114 2988 6.44      
14 E 3025 2902 20.55      
14 E 3025 2902 20.55      
15 E 1524 1462 11.01      
15 E 1524 1462 11.01      
16 E 1516 1454 5.54      
16 E 1516 1454 5.54      
17 E 1384 1328 2.72      
17 E 1384 1328 2.72      
18 E 1009 968 19.82      
18 E 1009 968 19.82      
19 E 896 859 0.06      
19 E 896 859 0.06      
20 E 671 643 7.20      
20 E 671 643 7.20      
21 E 234 225 0.11      
21 E 234 225 0.11      
22 E 179 171 0.00      
22 E 179 171 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 24990.8 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 23978.6 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/6-31G
ABC
0.17959 0.17959 0.11537

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.628
C2 0.000 1.692 -0.293
C3 1.465 -0.846 -0.293
C4 -1.465 -0.846 -0.293
H5 0.000 1.556 -1.387
H6 -0.894 2.262 0.002
H7 0.894 2.262 0.002
H8 1.348 -0.778 -1.387
H9 2.406 -0.357 0.002
H10 1.512 -1.905 0.002
H11 -1.348 -0.778 -1.387
H12 -1.512 -1.905 0.002
H13 -2.406 -0.357 0.002

Atom - Atom Distances (Å)
  P1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
P11.92581.92581.92582.54582.51162.51162.54582.51162.51162.54582.51162.5116
C21.92582.93002.93001.10251.10041.10043.01903.17383.91283.01903.91283.1738
C31.92582.93002.93003.01903.91283.17381.10251.10041.10043.01903.17383.9128
C41.92582.93002.93003.01903.17383.91283.01903.91283.17381.10251.10041.1004
H52.54581.10253.01903.01901.79581.79582.69583.37324.02452.69584.02453.3732
H62.51161.10043.91283.17381.79581.78734.02454.21304.81203.37324.21303.0247
H72.51161.10043.17383.91281.79581.78733.37323.02474.21304.02454.81204.2130
H82.54583.01901.10253.01902.69584.02453.37321.79581.79582.69583.37324.0245
H92.51163.17381.10043.91283.37324.21303.02471.79581.78734.02454.21304.8120
H102.51163.91281.10043.17384.02454.81204.21301.79581.78733.37323.02474.2130
H112.54583.01903.01901.10252.69583.37324.02452.69584.02453.37321.79581.7958
H122.51163.91283.17381.10044.02454.21304.81203.37324.21303.02471.79581.7873
H132.51163.17383.91281.10043.37323.02474.21304.02454.81204.21301.79581.7873

picture of trimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C2 H5 111.505 P1 C2 H6 109.128
P1 C2 H7 109.128 P1 C3 H8 111.505
P1 C3 H9 109.128 P1 C3 H10 109.128
P1 C4 H11 111.505 P1 C4 H12 109.128
P1 C4 H13 109.128 C2 P1 C3 99.056
C2 P1 C4 99.056 C3 P1 C4 99.056
H5 C2 H6 109.211 H5 C2 H7 109.211
H6 C2 H7 108.609 H8 C3 H9 109.211
H8 C3 H10 109.212 H9 C3 H10 108.609
H11 C4 H12 109.212 H11 C4 H13 109.211
H12 C4 H13 108.609
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability