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

using model chemistry: MP4/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/6-311G**
 hartrees
Energy at 0K-95.625515
Energy at 298.15K-95.631197
HF Energy-95.241455
Nuclear repulsion energy41.840113
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 MP4/6-311G**
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 3397        
2 A' 3087 2994        
3 A' 2995 2904        
4 A' 1660 1609        
5 A' 1510 1464        
6 A' 1474 1429        
7 A' 1200 1164        
8 A' 1072 1040        
9 A' 906 879        
10 A" 3588 3479        
11 A" 3127 3032        
12 A" 1531 1484        
13 A" 1370 1329        
14 A" 984 954        
15 A" 333 323        

Unscaled Zero Point Vibrational Energy (zpe) 14169.1 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 13739.8 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 MP4/6-311G**
ABC
3.41020 0.75431 0.72696

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.053 0.707 0.000
N2 0.053 -0.765 0.000
H3 -0.946 1.175 0.000
H4 0.596 1.063 0.883
H5 0.596 1.063 -0.883
H6 -0.469 -1.093 -0.809
H7 -0.469 -1.093 0.809

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.47181.10321.09611.09612.04122.0412
N21.47182.18242.10192.10191.01721.0172
H31.10322.18241.77981.77982.45532.4553
H41.09612.10191.77981.76632.94072.4060
H51.09612.10191.77981.76632.40602.9407
H62.04121.01722.45532.94072.40601.6186
H72.04121.01722.45532.40602.94071.6186

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 108.809 C1 N2 H7 108.809
N2 C1 H3 115.140 N2 C1 H4 108.995
N2 C1 H5 108.995 H3 C1 H4 108.045
H3 C1 H5 108.045 H4 C1 H5 107.351
H6 N2 H7 105.424
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability