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: HF/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/aug-cc-pVQZ
 hartrees
Energy at 0K-95.262152
Energy at 298.15K 
HF Energy-95.262152
Nuclear repulsion energy42.413516
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 HF/aug-cc-pVQZ
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' 3729 3388 0.57 109.70 0.08 0.15
2 A' 3194 2902 47.10 102.32 0.24 0.38
3 A' 3119 2834 92.00 148.01 0.10 0.18
4 A' 1794 1630 25.92 1.81 0.75 0.86
5 A' 1617 1469 5.83 4.56 0.71 0.83
6 A' 1582 1437 2.89 0.36 0.53 0.69
7 A' 1267 1151 11.23 0.11 0.49 0.65
8 A' 1134 1030 22.07 11.43 0.19 0.32
9 A' 898 816 153.38 0.65 0.53 0.69
10 A" 3806 3457 3.44 46.88 0.75 0.86
11 A" 3227 2931 45.18 58.17 0.75 0.86
12 A" 1634 1485 3.89 5.14 0.75 0.86
13 A" 1456 1322 0.03 0.47 0.75 0.86
14 A" 1040 945 0.00 0.01 0.75 0.86
15 A" 316 287 33.62 0.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14906.6 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 13542.7 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 HF/aug-cc-pVQZ
ABC
3.55158 0.77300 0.74154

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.048 0.701 0.000
N2 0.048 -0.750 0.000
H3 -0.943 1.151 0.000
H4 0.578 1.060 0.872
H5 0.578 1.060 -0.872
H6 -0.417 -1.113 -0.804
H7 -0.417 -1.113 0.804

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.45131.08791.08201.08202.03832.0383
N21.45132.14382.07792.07790.99690.9969
H31.08792.14381.75561.75562.46002.4600
H41.08202.07791.75561.74432.91912.3910
H51.08202.07791.75561.74432.39102.9191
H62.03830.99692.46002.91912.39101.6077
H72.03830.99692.46002.39102.91911.6077

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 111.377 C1 N2 H7 111.377
N2 C1 H3 114.434 N2 C1 H4 109.352
N2 C1 H5 109.352 H3 C1 H4 108.018
H3 C1 H5 108.018 H4 C1 H5 107.434
H6 N2 H7 107.492
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.652      
2 N -0.602      
3 H 0.237      
4 H 0.270      
5 H 0.270      
6 H 0.239      
7 H 0.239      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.289 0.366 0.000 1.340
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.049 2.115 0.000
y 2.115 -14.312 0.000
z 0.000 0.000 -12.546
Traceless
 xyz
x -1.620 2.115 0.000
y 2.115 -0.514 0.000
z 0.000 0.000 2.135
Polar
3z2-r24.269
x2-y2-0.737
xy2.115
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.339 0.011 0.000
y 0.011 3.843 0.000
z 0.000 0.000 3.334


<r2> (average value of r2) Å2
<r2> 26.412
(<r2>)1/2 5.139