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

using model chemistry: QCISD/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-460.209197
Energy at 298.15K-460.218903
HF Energy-459.584021
Nuclear repulsion energy176.821120
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/6-31+G**
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 3173 2999 48.48      
2 A1 3082 2914 33.93      
3 A1 1512 1429 11.23      
4 A1 1403 1326 3.71      
5 A1 1006 951 27.82      
6 A1 671 634 0.80      
7 A1 291 275 1.67      
8 A2 3186 3012 0.00      
9 A2 1497 1415 0.00      
10 A2 819 774 0.00      
11 A2 161 152 0.00      
12 E 3187 3013 19.44      
12 E 3187 3013 19.44      
13 E 3172 2999 5.06      
13 E 3172 2999 5.06      
14 E 3083 2914 23.20      
14 E 3083 2914 23.20      
15 E 1512 1429 9.66      
15 E 1512 1429 9.66      
16 E 1499 1417 5.53      
16 E 1499 1417 5.53      
17 E 1378 1302 4.09      
17 E 1378 1302 4.09      
18 E 992 937 17.58      
18 E 992 937 17.58      
19 E 871 824 0.01      
19 E 871 824 0.01      
20 E 732 692 12.96      
20 E 732 692 12.96      
21 E 255 241 0.37      
21 E 255 241 0.37      
22 E 197 186 0.00      
22 E 197 186 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25275.0 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 23894.9 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/6-31+G**
ABC
0.19166 0.19166 0.12334

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.607
C2 0.000 1.630 -0.280
C3 1.412 -0.815 -0.280
C4 -1.412 -0.815 -0.280
H5 0.000 1.505 -1.367
H6 -0.881 2.208 0.005
H7 0.881 2.208 0.005
H8 1.303 -0.752 -1.367
H9 2.352 -0.341 0.005
H10 1.471 -1.867 0.005
H11 -1.303 -0.752 -1.367
H12 -1.471 -1.867 0.005
H13 -2.352 -0.341 0.005

Atom - Atom Distances (Å)
  P1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
P11.85611.85611.85612.48192.45202.45202.48192.45202.45202.48192.45202.4520
C21.85612.82362.82361.09361.09141.09142.92473.08233.80472.92473.80473.0823
C31.85612.82362.82362.92473.80473.08231.09361.09141.09142.92473.08233.8047
C41.85612.82362.82362.92473.08233.80472.92473.80473.08231.09361.09141.0914
H52.48191.09362.92472.92471.77561.77562.60593.28963.92602.60593.92603.2896
H62.45201.09143.80473.08231.77561.76203.92604.11714.70483.28964.11712.9429
H72.45201.09143.08233.80471.77561.76203.28962.94294.11713.92604.70484.1171
H82.48192.92471.09362.92472.60593.92603.28961.77561.77562.60593.28963.9260
H92.45203.08231.09143.80473.28964.11712.94291.77561.76203.92604.11714.7048
H102.45203.80471.09143.08233.92604.70484.11711.77561.76203.28962.94294.1171
H112.48192.92472.92471.09362.60593.28963.92602.60593.92603.28961.77561.7756
H122.45203.80473.08231.09143.92604.11714.70483.28964.11712.94291.77561.7620
H132.45203.08233.80471.09143.28962.94294.11713.92604.70484.11711.77561.7620

picture of trimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C2 H5 111.966 P1 C2 H6 109.852
P1 C2 H7 109.852 P1 C3 H8 111.966
P1 C3 H9 109.852 P1 C3 H10 109.852
P1 C4 H11 111.966 P1 C4 H12 109.852
P1 C4 H13 109.852 C2 P1 C3 99.036
C2 P1 C4 99.036 C3 P1 C4 99.036
H5 C2 H6 108.710 H5 C2 H7 108.710
H6 C2 H7 107.642 H8 C3 H9 108.710
H8 C3 H10 108.710 H9 C3 H10 107.642
H11 C4 H12 108.710 H11 C4 H13 108.710
H12 C4 H13 107.642
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability