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

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-461.030567
Energy at 298.15K-461.040247
HF Energy-461.030567
Nuclear repulsion energy177.177056
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 B1B95/6-31G*
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 3155 2995 37.16      
2 A1 3065 2910 27.11      
3 A1 1515 1438 10.17      
4 A1 1372 1303 3.53      
5 A1 994 943 44.13      
6 A1 666 632 0.10      
7 A1 286 272 0.21      
8 A2 3170 3009 0.00      
9 A2 1486 1411 0.00      
10 A2 800 759 0.00      
11 A2 184 174 0.00      
12 E 3170 3010 13.96      
12 E 3170 3010 13.96      
13 E 3157 2997 3.13      
13 E 3157 2997 3.13      
14 E 3069 2913 15.21      
14 E 3069 2913 15.21      
15 E 1503 1427 11.75      
15 E 1503 1427 11.76      
16 E 1493 1418 5.26      
16 E 1493 1418 5.26      
17 E 1345 1277 5.47      
17 E 1345 1277 5.48      
18 E 976 926 25.89      
18 E 976 926 25.90      
19 E 851 808 0.66      
19 E 851 808 0.66      
20 E 724 688 10.92      
20 E 724 688 10.92      
21 E 247 235 0.10      
21 E 247 235 0.10      
22 E 209 198 0.04      
22 E 209 198 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 25090.9 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 23818.8 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 B1B95/6-31G*
ABC
0.19262 0.19262 0.12396

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.605
C2 0.000 1.625 -0.280
C3 1.407 -0.813 -0.280
C4 -1.407 -0.813 -0.280
H5 0.000 1.511 -1.368
H6 -0.881 2.202 0.011
H7 0.881 2.202 0.011
H8 1.309 -0.756 -1.368
H9 2.348 -0.338 0.011
H10 1.466 -1.864 0.011
H11 -1.309 -0.756 -1.368
H12 -1.466 -1.864 0.011
H13 -2.348 -0.338 0.011

Atom - Atom Distances (Å)
  P1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
P11.85001.85001.85002.48522.44482.44482.48522.44482.44482.48522.44482.4448
C21.85002.81472.81471.09471.09271.09272.92683.07393.79602.92683.79603.0739
C31.85002.81472.81472.92683.79603.07391.09471.09271.09272.92683.07393.7960
C41.85002.81472.81472.92683.07393.79602.92683.79603.07391.09471.09271.0927
H52.48521.09472.92682.92681.77691.77692.61763.29153.93032.61763.93033.2915
H62.44481.09273.79603.07391.77691.76233.93034.10804.69513.29154.10802.9328
H72.44481.09273.07393.79601.77691.76233.29152.93284.10803.93034.69514.1080
H82.48522.92681.09472.92682.61763.93033.29151.77691.77692.61763.29153.9303
H92.44483.07391.09273.79603.29154.10802.93281.77691.76233.93034.10804.6951
H102.44483.79601.09273.07393.93034.69514.10801.77691.76233.29152.93284.1080
H112.48522.92682.92681.09472.61763.29153.93032.61763.93033.29151.77691.7769
H122.44483.79603.07391.09273.93034.10804.69513.29154.10802.93281.77691.7623
H132.44483.07393.79601.09273.29152.93284.10803.93034.69514.10801.77691.7623

picture of trimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C2 H5 112.579 P1 C2 H6 109.663
P1 C2 H7 109.663 P1 C3 H8 112.579
P1 C3 H9 109.663 P1 C3 H10 109.663
P1 C4 H11 112.579 P1 C4 H12 109.663
P1 C4 H13 109.663 C2 P1 C3 99.057
C2 P1 C4 99.057 C3 P1 C4 99.057
H5 C2 H6 108.651 H5 C2 H7 108.651
H6 C2 H7 107.496 H8 C3 H9 108.651
H8 C3 H10 108.651 H9 C3 H10 107.496
H11 C4 H12 108.651 H11 C4 H13 108.651
H12 C4 H13 107.496
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.393      
2 C -0.676      
3 C -0.676      
4 C -0.676      
5 H 0.174      
6 H 0.186      
7 H 0.186      
8 H 0.174      
9 H 0.186      
10 H 0.186      
11 H 0.174      
12 H 0.186      
13 H 0.186      


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 -1.371 1.371
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.788 0.000 0.000
y 0.000 -32.788 0.000
z 0.000 0.000 -37.420
Traceless
 xyz
x 2.316 0.000 0.000
y 0.000 2.316 0.000
z 0.000 0.000 -4.632
Polar
3z2-r2-9.263
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 8.469 0.000 0.000
y 0.000 8.470 0.000
z 0.000 0.000 7.073


<r2> (average value of r2) Å2
<r2> 122.089
(<r2>)1/2 11.049