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: MP3/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3/TZVP
 hartrees
Energy at 0K-95.618683
Energy at 298.15K-95.624365
HF Energy-95.250470
Nuclear repulsion energy42.085364
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 MP3/TZVP
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' 3582 3350 0.10      
2 A' 3140 2936 38.56      
3 A' 3053 2856 75.99      
4 A' 1687 1578 27.12      
5 A' 1528 1429 6.70      
6 A' 1501 1404 2.62      
7 A' 1214 1136 13.08      
8 A' 1093 1022 10.07      
9 A' 895 837 161.26      
10 A" 3667 3429 0.26      
11 A" 3178 2972 33.67      
12 A" 1546 1446 2.67      
13 A" 1385 1295 0.00      
14 A" 995 930 0.26      
15 A" 327 306 40.27      

Unscaled Zero Point Vibrational Energy (zpe) 14395.4 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 13462.6 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 MP3/TZVP
ABC
3.47337 0.76266 0.73291

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.050 0.705 0.000
N2 0.050 -0.758 0.000
H3 -0.944 1.164 0.000
H4 0.587 1.062 0.877
H5 0.587 1.062 -0.877
H6 -0.442 -1.106 -0.810
H7 -0.442 -1.106 0.810

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.46231.09541.08901.08902.04352.0435
N21.46232.16412.09042.09041.00991.0099
H31.09542.16411.76771.76772.46212.4621
H41.08902.09041.76771.75472.93372.4005
H51.08902.09041.76771.75472.40052.9337
H62.04351.00992.46212.93372.40051.6208
H72.04351.00992.46212.40052.93371.6208

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 110.148 C1 N2 H7 110.148
N2 C1 H3 114.823 N2 C1 H4 109.166
N2 C1 H5 109.166 H3 C1 H4 108.041
H3 C1 H5 108.041 H4 C1 H5 107.349
H6 N2 H7 106.726
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability