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

using model chemistry: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-460.752154
Energy at 298.15K-460.761685
HF Energy-460.752154
Nuclear repulsion energy176.008478
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 PBEPBE/6-31G(2df,p)
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 3056 3024 31.63      
2 A1 2964 2934 24.02      
3 A1 1435 1420 4.99      
4 A1 1281 1268 1.88      
5 A1 940 930 33.30      
6 A1 633 626 0.12      
7 A1 289 286 0.02      
8 A2 3071 3039 0.00      
9 A2 1406 1391 0.00      
10 A2 756 748 0.00      
11 A2 181 179 0.00      
12 E 3071 3039 10.99      
12 E 3071 3039 10.99      
13 E 3057 3025 1.99      
13 E 3057 3025 1.99      
14 E 2967 2937 14.26      
14 E 2967 2937 14.26      
15 E 1423 1409 6.81      
15 E 1423 1409 6.81      
16 E 1411 1396 4.08      
16 E 1411 1396 4.08      
17 E 1253 1240 0.82      
17 E 1253 1240 0.82      
18 E 924 915 23.01      
18 E 924 915 23.01      
19 E 803 795 0.92      
19 E 803 795 0.92      
20 E 689 682 11.37      
20 E 689 682 11.37      
21 E 244 242 0.04      
21 E 244 242 0.04      
22 E 204 202 0.05      
22 E 204 202 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 24051.4 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 23803.7 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 PBEPBE/6-31G(2df,p)
ABC
0.19019 0.19019 0.12232

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.607
C2 0.000 1.636 -0.281
C3 1.417 -0.818 -0.281
C4 -1.417 -0.818 -0.281
H5 0.000 1.523 -1.379
H6 -0.889 2.214 0.017
H7 0.889 2.214 0.017
H8 1.319 -0.761 -1.379
H9 2.362 -0.337 0.017
H10 1.473 -1.877 0.017
H11 -1.319 -0.761 -1.379
H12 -1.473 -1.877 0.017
H13 -2.362 -0.337 0.017

Atom - Atom Distances (Å)
  P1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
P11.86171.86171.86172.50222.45782.45782.50222.45782.45782.50222.45782.4578
C21.86172.83412.83411.10351.10141.10142.94813.09233.82122.94813.82123.0923
C31.86172.83412.83412.94813.82123.09231.10351.10141.10142.94813.09233.8212
C41.86172.83412.83412.94813.09233.82122.94813.82123.09231.10351.10141.1014
H52.50221.10352.94812.94811.79361.79362.63713.31453.95912.63713.95913.3145
H62.45781.10143.82123.09231.79361.77793.95914.13264.72403.31454.13262.9461
H72.45781.10143.09233.82121.79361.77793.31452.94614.13263.95914.72404.1326
H82.50222.94811.10352.94812.63713.95913.31451.79361.79362.63713.31453.9591
H92.45783.09231.10143.82123.31454.13262.94611.79361.77793.95914.13264.7240
H102.45783.82121.10143.09233.95914.72404.13261.79361.77793.31452.94614.1326
H112.50222.94812.94811.10352.63713.31453.95912.63713.95913.31451.79361.7936
H122.45783.82123.09231.10143.95914.13264.72403.31454.13262.94611.79361.7779
H132.45783.09233.82121.10143.31452.94614.13263.95914.72404.13261.79361.7779

picture of trimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C2 H5 112.573 P1 C2 H6 109.391
P1 C2 H7 109.391 P1 C3 H8 112.573
P1 C3 H9 109.391 P1 C3 H10 109.391
P1 C4 H11 112.573 P1 C4 H12 109.391
P1 C4 H13 109.391 C2 P1 C3 99.131
C2 P1 C4 99.131 C3 P1 C4 99.131
H5 C2 H6 108.866 H5 C2 H7 108.866
H6 C2 H7 107.630 H8 C3 H9 108.866
H8 C3 H10 108.866 H9 C3 H10 107.630
H11 C4 H12 108.866 H11 C4 H13 108.866
H12 C4 H13 107.630
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.022      
2 C -0.416      
3 C -0.416      
4 C -0.416      
5 H 0.127      
6 H 0.141      
7 H 0.141      
8 H 0.127      
9 H 0.141      
10 H 0.141      
11 H 0.127      
12 H 0.141      
13 H 0.141      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.412 1.412
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.740 0.000 0.000
y 0.000 -32.740 0.000
z 0.000 0.000 -37.348
Traceless
 xyz
x 2.304 0.000 0.000
y 0.000 2.304 0.000
z 0.000 0.000 -4.608
Polar
3z2-r2-9.216
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.184 0.000 0.000
y 0.000 9.184 0.001
z 0.000 0.001 7.708


<r2> (average value of r2) Å2
<r2> 123.365
(<r2>)1/2 11.107