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

using model chemistry: QCISD/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 QCISD/6-311G*
 hartrees
Energy at 0K-460.204475
Energy at 298.15K-460.214212
HF Energy-459.608378
Nuclear repulsion energy176.862217
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 QCISD/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 3108 2975 43.97      
2 A1 3025 2896 30.17      
3 A1 1516 1451 13.95      
4 A1 1400 1340 5.28      
5 A1 1013 970 45.61      
6 A1 673 644 0.46      
7 A1 301 288 1.27      
8 A2 3119 2986 0.00      
9 A2 1487 1423 0.00      
10 A2 819 784 0.00      
11 A2 156 149 0.00      
12 E 3120 2987 18.76      
12 E 3120 2987 18.76      
13 E 3107 2974 4.77      
13 E 3107 2974 4.77      
14 E 3025 2896 19.61      
14 E 3025 2896 19.61      
15 E 1504 1440 13.56      
15 E 1504 1440 13.56      
16 E 1495 1431 4.20      
16 E 1495 1431 4.20      
17 E 1373 1315 9.62      
17 E 1373 1315 9.62      
18 E 990 948 23.48      
18 E 990 948 23.48      
19 E 874 837 0.28      
19 E 874 837 0.28      
20 E 729 698 12.20      
20 E 729 698 12.20      
21 E 259 248 0.25      
21 E 259 248 0.25      
22 E 202 194 0.02      
22 E 202 194 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 24984.1 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 23919.8 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 QCISD/6-311G*
ABC
0.19196 0.19196 0.12374

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.608
C2 0.000 1.626 -0.280
C3 1.408 -0.813 -0.280
C4 -1.408 -0.813 -0.280
H5 0.000 1.506 -1.371
H6 -0.883 2.208 0.006
H7 0.883 2.208 0.006
H8 1.304 -0.753 -1.371
H9 2.354 -0.339 0.006
H10 1.471 -1.869 0.006
H11 -1.304 -0.753 -1.371
H12 -1.471 -1.869 0.006
H13 -2.354 -0.339 0.006

Atom - Atom Distances (Å)
  P1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
P11.85311.85311.85312.48752.45342.45342.48752.45342.45342.48752.45342.4534
C21.85312.81632.81631.09761.09591.09592.92413.07973.80262.92413.80263.0797
C31.85312.81632.81632.92413.80263.07971.09761.09591.09592.92413.07973.8026
C41.85312.81632.81632.92413.07973.80262.92413.80263.07971.09761.09591.0959
H52.48751.09762.92412.92411.78051.78052.60823.29273.93062.60823.93063.2927
H62.45341.09593.80263.07971.78051.76663.93064.11934.70793.29274.11932.9413
H72.45341.09593.07973.80261.78051.76663.29272.94134.11933.93064.70794.1193
H82.48752.92411.09762.92412.60823.93063.29271.78051.78052.60823.29273.9306
H92.45343.07971.09593.80263.29274.11932.94131.78051.76663.93064.11934.7079
H102.45343.80261.09593.07973.93064.70794.11931.78051.76663.29272.94134.1193
H112.48752.92412.92411.09762.60823.29273.93062.60823.93063.29271.78051.7805
H122.45343.80263.07971.09593.93064.11934.70793.29274.11932.94131.78051.7666
H132.45343.07973.80261.09593.29272.94134.11933.93064.70794.11931.78051.7666

picture of trimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C2 H5 112.379 P1 C2 H6 109.928
P1 C2 H7 109.928 P1 C3 H8 112.379
P1 C3 H9 109.928 P1 C3 H10 109.928
P1 C4 H11 112.379 P1 C4 H12 109.928
P1 C4 H13 109.928 C2 P1 C3 98.910
C2 P1 C4 98.910 C3 P1 C4 98.910
H5 C2 H6 108.526 H5 C2 H7 108.526
H6 C2 H7 107.412 H8 C3 H9 108.526
H8 C3 H10 108.526 H9 C3 H10 107.412
H11 C4 H12 108.526 H11 C4 H13 108.526
H12 C4 H13 107.412
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability