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

using model chemistry: MP4/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP4/6-311G**
 hartrees
Energy at 0K-460.293521
Energy at 298.15K-460.303120
HF Energy-459.622202
Nuclear repulsion energy176.891966
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 MP4/6-311G**
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 3116 3021        
2 A1 3026 2935        
3 A1 1484 1439        
4 A1 1366 1325        
5 A1 988 958        
6 A1 669 649        
7 A1 293 284        
8 A2 3130 3035        
9 A2 1461 1417        
10 A2 795 771        
11 A2 122 118        
12 E 3130 3035        
12 E 3130 3035        
13 E 3116 3021        
13 E 3115 3021        
14 E 3028 2936        
14 E 3028 2936        
15 E 1479 1434        
15 E 1479 1434        
16 E 1464 1420        
16 E 1464 1420        
17 E 1339 1298        
17 E 1339 1298        
18 E 967 937        
18 E 967 937        
19 E 853 827        
19 E 852 826        
20 E 724 702        
20 E 724 702        
21 E 255 247        
21 E 254 246        
22 E 193 187        
22 E 192 186        

Unscaled Zero Point Vibrational Energy (zpe) 24768.3 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 24017.8 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 MP4/6-311G**
ABC
0.19197 0.19197 0.12424

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.614
C2 0.000 1.623 -0.283
C3 1.406 -0.812 -0.283
C4 -1.406 -0.812 -0.283
H5 0.000 1.489 -1.374
H6 -0.885 2.205 0.002
H7 0.885 2.205 0.002
H8 1.289 -0.744 -1.374
H9 2.352 -0.335 0.002
H10 1.466 -1.869 0.002
H11 -1.289 -0.744 -1.374
H12 -1.466 -1.869 0.002
H13 -2.352 -0.335 0.002

Atom - Atom Distances (Å)
  P1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
P11.85451.85451.85452.48322.45342.45342.48322.45342.45342.48322.45342.4534
C21.85452.81152.81151.09891.09681.09682.90803.07393.79842.90803.79843.0739
C31.85452.81152.81152.90803.79843.07391.09891.09681.09682.90803.07393.7984
C41.85452.81152.81152.90803.07393.79842.90803.79843.07391.09891.09681.0968
H52.48321.09892.90802.90801.78551.78552.57843.27883.91362.57843.91363.2788
H62.45341.09683.79843.07391.78551.77093.91364.11494.70393.27884.11492.9330
H72.45341.09683.07393.79841.78551.77093.27882.93304.11493.91364.70394.1149
H82.48322.90801.09892.90802.57843.91363.27881.78551.78552.57843.27883.9136
H92.45343.07391.09683.79843.27884.11492.93301.78551.77093.91364.11494.7039
H102.45343.79841.09683.07393.91364.70394.11491.78551.77093.27882.93304.1149
H112.48322.90802.90801.09892.57843.27883.91362.57843.91363.27881.78551.7855
H122.45343.79843.07391.09683.91364.11494.70393.27884.11492.93301.78551.7709
H132.45343.07393.79841.09683.27882.93304.11493.91364.70394.11491.78551.7709

picture of trimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C2 H5 111.891 P1 C2 H6 109.780
P1 C2 H7 109.780 P1 C3 H8 111.891
P1 C3 H9 109.780 P1 C3 H10 109.780
P1 C4 H11 111.891 P1 C4 H12 109.780
P1 C4 H13 109.780 C2 P1 C3 98.575
C2 P1 C4 98.575 C3 P1 C4 98.575
H5 C2 H6 108.813 H5 C2 H7 108.813
H6 C2 H7 107.660 H8 C3 H9 108.813
H8 C3 H10 108.813 H9 C3 H10 107.660
H11 C4 H12 108.813 H11 C4 H13 108.813
H12 C4 H13 107.660
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability