return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCSD(T)=FULL/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CCSD(T)=FULL/TZVP
 hartrees
Energy at 0K-460.385487
Energy at 298.15K 
HF Energy-459.629196
Nuclear repulsion energy176.359683
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 CCSD(T)=FULL/TZVP
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 3125 2988        
2 A1 3035 2901        
3 A1 1480 1415        
4 A1 1364 1304        
5 A1 981 938        
6 A1 656 627        
7 A1 291 278        
8 A2 3137 2999        
9 A2 1461 1396        
10 A2 789 754        
11 A2 17i 17i        
12 E 3138 3000        
12 E 3138 2999        
13 E 3125 2987        
13 E 3125 2987        
14 E 3036 2902        
14 E 3036 2902        
15 E 1479 1414        
15 E 1479 1414        
16 E 1460 1396        
16 E 1460 1396        
17 E 1336 1278        
17 E 1336 1277        
18 E 962 920        
18 E 962 920        
19 E 846 809        
19 E 846 809        
20 E 712 681        
20 E 712 681        
21 E 250 239        
21 E 249 238        
22 E 176 168        
22 E 175 167        

Unscaled Zero Point Vibrational Energy (zpe) 24668.2 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 23582.8 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 CCSD(T)=FULL/TZVP
ABC
0.19034 0.19034 0.12330

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.619
C2 0.000 1.631 -0.286
C3 1.413 -0.816 -0.286
C4 -1.413 -0.816 -0.286
H5 0.000 1.490 -1.371
H6 -0.883 2.209 -0.003
H7 0.883 2.209 -0.003
H8 1.291 -0.745 -1.371
H9 2.354 -0.340 -0.003
H10 1.471 -1.869 -0.003
H11 -1.291 -0.745 -1.371
H12 -1.471 -1.869 -0.003
H13 -2.354 -0.340 -0.003

Atom - Atom Distances (Å)
  P1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
P11.86551.86551.86552.48602.45832.45832.48602.45832.45832.48602.45832.4583
C21.86552.82552.82551.09401.09231.09232.91373.08343.80732.91373.80733.0834
C31.86552.82552.82552.91373.80733.08341.09401.09231.09232.91373.08343.8073
C41.86552.82552.82552.91373.08343.80732.91373.80733.08341.09401.09231.0923
H52.48601.09402.91372.91371.78001.78002.58103.28073.91412.58103.91413.2807
H62.45831.09233.80733.08341.78001.76563.91414.11964.70813.28074.11962.9425
H72.45831.09233.08343.80731.78001.76563.28072.94254.11963.91414.70814.1196
H82.48602.91371.09402.91372.58103.91413.28071.78001.78002.58103.28073.9141
H92.45833.08341.09233.80733.28074.11962.94251.78001.76563.91414.11964.7081
H102.45833.80731.09233.08343.91414.70814.11961.78001.76563.28072.94254.1196
H112.48602.91372.91371.09402.58103.28073.91412.58103.91413.28071.78001.7800
H122.45833.80733.08341.09233.91414.11964.70813.28074.11962.94251.78001.7656
H132.45833.08343.80731.09233.28072.94254.11963.91414.70814.11961.78001.7656

picture of trimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C2 H5 111.609 P1 C2 H6 109.639
P1 C2 H7 109.639 P1 C3 H8 111.609
P1 C3 H9 109.639 P1 C3 H10 109.639
P1 C4 H11 111.609 P1 C4 H12 109.639
P1 C4 H13 109.639 C2 P1 C3 98.450
C2 P1 C4 98.450 C3 P1 C4 98.450
H5 C2 H6 109.014 H5 C2 H7 109.014
H6 C2 H7 107.844 H8 C3 H9 109.014
H8 C3 H10 109.014 H9 C3 H10 107.844
H11 C4 H12 109.014 H11 C4 H13 109.014
H12 C4 H13 107.844
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability