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: B2PLYP=FULLultrafine/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULLultrafine/cc-pVDZ
 hartrees
Energy at 0K-95.746771
Energy at 298.15K 
HF Energy-95.638607
Nuclear repulsion energy41.847123
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=FULLultrafine/cc-pVDZ
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' 3490 3344 1.57 112.69 0.11 0.20
2 A' 3094 2964 42.45 100.36 0.30 0.47
3 A' 2990 2865 92.64 145.58 0.15 0.27
4 A' 1665 1596 15.13 7.64 0.69 0.82
5 A' 1491 1429 8.05 18.33 0.68 0.81
6 A' 1457 1396 3.81 5.25 0.62 0.77
7 A' 1188 1138 8.11 2.95 0.44 0.61
8 A' 1081 1036 9.56 9.07 0.30 0.46
9 A' 891 854 132.66 3.79 0.65 0.79
10 A" 3568 3419 0.15 68.40 0.75 0.86
11 A" 3136 3005 32.84 78.67 0.75 0.86
12 A" 1512 1449 2.07 17.88 0.75 0.86
13 A" 1363 1306 0.31 1.98 0.75 0.86
14 A" 986 945 0.01 0.33 0.75 0.86
15 A" 335 321 35.97 1.64 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14123.6 cm-1
Scaled (by 0.9582) Zero Point Vibrational Energy (zpe) 13533.2 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 B2PLYP=FULLultrafine/cc-pVDZ
ABC
3.39898 0.75746 0.73030

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.054 0.701 0.000
N2 0.054 -0.762 0.000
H3 -0.944 1.186 0.000
H4 0.598 1.066 0.885
H5 0.598 1.066 -0.885
H6 -0.475 -1.094 -0.808
H7 -0.475 -1.094 0.808

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.46361.10921.10091.10092.03892.0389
N21.46362.18892.10282.10281.02131.0213
H31.10922.18891.78201.78202.46442.4644
H41.10092.10281.78201.76902.94692.4135
H51.10092.10281.78201.76902.41352.9469
H62.03891.02132.46442.94692.41351.6164
H72.03891.02132.46442.41352.94691.6164

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 108.970 C1 N2 H7 108.970
N2 C1 H3 115.916 N2 C1 H4 109.342
N2 C1 H5 109.342 H3 C1 H4 107.474
H3 C1 H5 107.474 H4 C1 H5 106.918
H6 N2 H7 104.628
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.002      
2 N -0.225      
3 H 0.006      
4 H 0.031      
5 H 0.031      
6 H 0.077      
7 H 0.077      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.292 0.286 0.000 1.323
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.625 2.050 -0.002
y 2.050 -14.228 -0.002
z -0.002 -0.002 -12.705
Traceless
 xyz
x -1.158 2.050 -0.002
y 2.050 -0.563 -0.002
z -0.002 -0.002 1.722
Polar
3z2-r23.443
x2-y2-0.397
xy2.050
xz-0.002
yz-0.002


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.654 0.163 0.000
y 0.163 3.257 0.000
z 0.000 0.000 2.970


<r2> (average value of r2) Å2
<r2> 26.713
(<r2>)1/2 5.168