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: B2PLYP=FULL/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 B2PLYP=FULL/6-31G**
 hartrees
Energy at 0K-460.806262
Energy at 298.15K-460.815995
HF Energy-460.613847
Nuclear repulsion energy176.641586
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 B2PLYP=FULL/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 3162 3162 40.60      
2 A1 3072 3072 24.30      
3 A1 1521 1521 6.46      
4 A1 1384 1384 2.07      
5 A1 1006 1006 40.86      
6 A1 658 658 0.30      
7 A1 296 296 0.26      
8 A2 3175 3175 0.00      
9 A2 1497 1497 0.00      
10 A2 812 812 0.00      
11 A2 180 180 0.00      
12 E 3175 3175 16.12      
12 E 3175 3175 16.13      
13 E 3162 3162 3.60      
13 E 3162 3162 3.60      
14 E 3074 3074 15.61      
14 E 3074 3074 15.61      
15 E 1513 1513 8.49      
15 E 1513 1513 8.48      
16 E 1500 1500 4.94      
16 E 1500 1500 4.94      
17 E 1358 1358 2.49      
17 E 1358 1358 2.49      
18 E 986 986 23.30      
18 E 986 986 23.30      
19 E 865 865 0.34      
19 E 865 865 0.34      
20 E 717 717 11.31      
20 E 717 717 11.31      
21 E 253 253 0.13      
21 E 253 253 0.13      
22 E 209 209 0.01      
22 E 209 209 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 25190.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25190.7 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 B2PLYP=FULL/6-31G**
ABC
0.19127 0.19127 0.12274

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.603
C2 0.000 1.634 -0.279
C3 1.415 -0.817 -0.279
C4 -1.415 -0.817 -0.279
H5 0.000 1.523 -1.367
H6 -0.881 2.208 0.013
H7 0.881 2.208 0.013
H8 1.319 -0.761 -1.367
H9 2.353 -0.341 0.013
H10 1.472 -1.867 0.013
H11 -1.319 -0.761 -1.367
H12 -1.472 -1.867 0.013
H13 -2.353 -0.341 0.013

Atom - Atom Distances (Å)
  P1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
P11.85761.85761.85762.48982.44952.44952.48982.44952.44952.48982.44952.4495
C21.85762.83082.83081.09301.09111.09112.94283.08613.80932.94283.80933.0861
C31.85762.83082.83082.94283.80933.08611.09301.09111.09112.94283.08613.8093
C41.85762.83082.83082.94283.08613.80932.94283.80933.08611.09301.09111.0911
H52.48981.09302.94282.94281.77481.77482.63713.30343.94442.63713.94443.3034
H62.44951.09113.80933.08611.77481.76163.94444.11764.70533.30344.11762.9438
H72.44951.09113.08613.80931.77481.76163.30342.94384.11763.94444.70534.1176
H82.48982.94281.09302.94282.63713.94443.30341.77481.77482.63713.30343.9444
H92.44953.08611.09113.80933.30344.11762.94381.77481.76163.94444.11764.7053
H102.44953.80931.09113.08613.94444.70534.11761.77481.76163.30342.94384.1176
H112.48982.94282.94281.09302.63713.30343.94442.63713.94443.30341.77481.7748
H122.44953.80933.08611.09113.94444.11764.70533.30344.11762.94381.77481.7616
H132.44953.08613.80931.09113.30342.94384.11763.94444.70534.11761.77481.7616

picture of trimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C2 H5 112.503 P1 C2 H6 109.584
P1 C2 H7 109.584 P1 C3 H8 112.503
P1 C3 H9 109.584 P1 C3 H10 109.584
P1 C4 H11 112.503 P1 C4 H12 109.584
P1 C4 H13 109.584 C2 P1 C3 99.277
C2 P1 C4 99.277 C3 P1 C4 99.277
H5 C2 H6 108.696 H5 C2 H7 108.696
H6 C2 H7 107.651 H8 C3 H9 108.696
H8 C3 H10 108.696 H9 C3 H10 107.651
H11 C4 H12 108.696 H11 C4 H13 108.696
H12 C4 H13 107.651
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability