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 CH3NH2 (methyl amine)

using model chemistry: B3LYP/CEP-121G

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-121G
 hartrees
Energy at 0K-18.531242
Energy at 298.15K 
HF Energy-18.531242
Nuclear repulsion energy26.247830
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-121G
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' 3503 3413 2.80 122.58 0.14 0.24
2 A' 3029 2952 63.53 109.01 0.28 0.44
3 A' 2909 2835 150.57 179.91 0.17 0.28
4 A' 1699 1656 31.70 7.10 0.73 0.85
5 A' 1514 1476 10.90 24.84 0.66 0.79
6 A' 1474 1437 3.58 9.64 0.67 0.80
7 A' 1143 1113 8.98 9.06 0.51 0.67
8 A' 1072 1045 16.66 9.95 0.34 0.51
9 A' 611 596 310.80 4.18 0.38 0.55
10 A" 3630 3537 0.42 64.06 0.75 0.86
11 A" 3078 2999 55.21 82.36 0.75 0.86
12 A" 1536 1497 4.41 20.83 0.75 0.86
13 A" 1324 1290 0.10 4.10 0.75 0.86
14 A" 960 936 1.31 0.36 0.75 0.86
15 A" 271 264 46.36 2.41 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13875.9 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 13522.1 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-121G
ABC
3.48726 0.74110 0.70476

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.037 0.720 0.000
N2 0.037 -0.758 0.000
H3 -0.967 1.189 0.000
H4 0.578 1.084 0.883
H5 0.578 1.084 -0.883
H6 -0.333 -1.186 -0.843
H7 -0.333 -1.186 0.843

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.47871.10761.09751.09752.11772.1177
N21.47872.19072.11332.11331.01561.0156
H31.10762.19071.78271.78272.59932.5993
H41.09752.11331.78271.76512.99412.4470
H51.09752.11331.78271.76512.44702.9941
H62.11771.01562.59932.99412.44701.6866
H72.11771.01562.59932.44702.99411.6866

picture of methyl amine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H6 114.945 C1 N2 H7 114.945
N2 C1 H3 115.027 N2 C1 H4 109.345
N2 C1 H5 109.345 H3 C1 H4 107.882
H3 C1 H5 107.882 H4 C1 H5 107.062
H6 N2 H7 112.271
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.391      
2 N -0.577      
3 H 0.125      
4 H 0.156      
5 H 0.156      
6 H 0.265      
7 H 0.265      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.296 0.187 0.000 1.309
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.622 2.168 0.000
y 2.168 -13.627 0.000
z 0.000 0.000 -12.387
Traceless
 xyz
x -2.616 2.168 0.000
y 2.168 0.378 0.000
z 0.000 0.000 2.238
Polar
3z2-r24.475
x2-y2-1.996
xy2.168
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.725 0.057 0.000
y 0.057 3.334 0.000
z 0.000 0.000 3.115


<r2> (average value of r2) Å2
<r2> 25.017
(<r2>)1/2 5.002