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All results from a given calculation for CH3NH2 (methyl amine)

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G4
 hartrees
Energy at 0K-95.778281
Energy at 298.15K-95.773915
HF Energy-95.866171
Nuclear repulsion energy41.940690
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/6-31G(2df,p)
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' 3493 3371 0.80 98.81 0.11 0.20
2 A' 3060 2953 38.20 84.83 0.26 0.42
3 A' 2962 2859 87.70 114.99 0.17 0.29
4 A' 1667 1608 17.03 7.96 0.68 0.81
5 A' 1498 1446 6.58 17.90 0.70 0.82
6 A' 1461 1410 2.38 5.67 0.63 0.77
7 A' 1181 1140 7.85 2.98 0.53 0.69
8 A' 1064 1027 7.23 8.44 0.31 0.47
9 A' 857 827 145.61 3.73 0.66 0.80
10 A" 3568 3443 0.00 58.65 0.75 0.86
11 A" 3099 2990 31.27 65.40 0.75 0.86
12 A" 1519 1466 2.01 17.78 0.75 0.86
13 A" 1357 1309 0.05 3.00 0.75 0.86
14 A" 979 945 0.02 0.34 0.75 0.86
15 A" 315 304 34.34 1.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14039.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 13548.5 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/6-31G(2df,p)
ABC
3.44042 0.75849 0.72986

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.052 0.703 0.000
N2 0.052 -0.761 0.000
H3 -0.943 1.180 0.000
H4 0.592 1.065 0.881
H5 0.592 1.065 -0.881
H6 -0.457 -1.103 -0.810
H7 -0.457 -1.103 0.810

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.46421.10291.09501.09502.04402.0440
N21.46422.18112.09802.09801.01541.0154
H31.10292.18111.77351.77352.47122.4712
H41.09502.09801.77351.76202.94272.4096
H51.09502.09801.77351.76202.40962.9427
H62.04401.01542.47122.94272.40961.6192
H72.04401.01542.47122.40962.94271.6192

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 110.366 C1 N2 H7 110.366
N2 C1 H3 115.694 N2 C1 H4 109.298
N2 C1 H5 109.298 H3 C1 H4 107.570
H3 C1 H5 107.570 H4 C1 H5 107.067
H6 N2 H7 106.548
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.298      
2 N -0.490      
3 H 0.094      
4 H 0.122      
5 H 0.122      
6 H 0.225      
7 H 0.225      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.244 0.271 0.000 1.273
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 26.572
(<r2>)1/2 5.155