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 CH3PH2 (Methyl phosphine)

using model chemistry: B3LYP/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/CEP-31G
 hartrees
Energy at 0K-15.128754
Energy at 298.15K-15.134282
Nuclear repulsion energy21.839984
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 B3LYP/CEP-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 A 3161 3061 36.19      
2 A 3055 2958 38.06      
3 A 2206 2136 167.85      
4 A 1489 1442 13.38      
5 A 1355 1312 0.99      
6 A 1104 1069 26.06      
7 A 1001 969 78.60      
8 A 732 709 2.90      
9 A 637 617 3.36      
10 A 3159 3059 30.18      
11 A 2243 2173 203.90      
12 A 1488 1441 11.25      
13 A 1039 1006 28.58      
14 A 704 681 3.11      
15 A 209 202 6.73      

Unscaled Zero Point Vibrational Energy (zpe) 11790.8 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 11418.2 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 B3LYP/CEP-31G
ABC
2.29424 0.36682 0.36343

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.136 0.911 0.000
P2 0.136 -1.021 0.000
H3 -0.878 1.341 0.000
H4 0.681 1.258 0.892
H5 0.681 1.258 -0.892
H6 -0.853 -1.198 -1.065
H7 -0.853 -1.198 1.065

Atom - Atom Distances (Å)
  C1 P2 H3 H4 H5 H6 H7
C11.93141.10101.10141.10142.56122.5612
P21.93142.56962.50722.50721.46391.4639
H31.10102.56961.79751.79752.75332.7533
H41.10142.50721.79751.78383.49512.9014
H51.10142.50721.79751.78382.90143.4951
H62.56121.46392.75333.49512.90142.1292
H72.56121.46392.75332.90143.49512.1292

picture of Methyl phosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 P2 H6 96.977 C1 P2 H7 96.977
P2 C1 H3 112.981 P2 C1 H4 108.397
P2 C1 H5 108.397 H3 C1 H4 109.403
H3 C1 H5 109.403 H4 C1 H5 108.143
H6 P2 H7 93.313
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.612      
2 P 0.091      
3 H 0.185      
4 H 0.188      
5 H 0.188      
6 H -0.020      
7 H -0.020      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.258 1.209 0.000 1.745
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.156 2.488 0.000
y 2.488 -22.755 0.000
z 0.000 0.000 -20.181
Traceless
 xyz
x -0.688 2.488 0.000
y 2.488 -1.586 0.000
z 0.000 0.000 2.274
Polar
3z2-r24.548
x2-y20.599
xy2.488
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.781 0.469 0.000
y 0.469 5.799 0.000
z 0.000 0.000 4.545


<r2> (average value of r2) Å2
<r2> 37.091
(<r2>)1/2 6.090