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

using model chemistry: HF/aug-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 HF/aug-cc-pVDZ
 hartrees
Energy at 0K-95.230999
Energy at 298.15K 
HF Energy-95.230999
Nuclear repulsion energy42.228772
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-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3727 3394 0.43 109.86 0.08 0.15
2 A' 3211 2924 50.05 97.39 0.29 0.45
3 A' 3132 2852 92.50 150.04 0.08 0.16
4 A' 1781 1622 25.31 2.04 0.75 0.86
5 A' 1595 1452 5.91 4.56 0.72 0.84
6 A' 1560 1421 2.85 0.34 0.61 0.76
7 A' 1257 1145 11.41 0.09 0.63 0.77
8 A' 1140 1038 21.79 12.43 0.19 0.33
9 A' 906 825 147.70 0.63 0.63 0.78
10 A" 3807 3467 2.47 48.16 0.75 0.86
11 A" 3246 2955 46.45 59.83 0.75 0.86
12 A" 1613 1468 3.87 5.46 0.75 0.86
13 A" 1448 1318 0.00 0.51 0.75 0.86
14 A" 1035 943 0.01 0.03 0.75 0.86
15 A" 329 299 34.69 0.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14893.1 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 13561.7 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-pVDZ
ABC
3.49960 0.76805 0.73746

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.049 0.702 0.000
N2 0.049 -0.753 0.000
H3 -0.948 1.156 0.000
H4 0.584 1.062 0.878
H5 0.584 1.062 -0.878
H6 -0.427 -1.112 -0.806
H7 -0.427 -1.112 0.806

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.45531.09561.08961.08962.04192.0419
N21.45532.15392.08592.08591.00251.0025
H31.09562.15391.76891.76892.46332.4633
H41.08962.08591.76891.75682.93022.3990
H51.08962.08591.76891.75682.39902.9302
H62.04191.00252.46332.93022.39901.6114
H72.04191.00252.46332.39902.93021.6114

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 111.015 C1 N2 H7 111.015
N2 C1 H3 114.474 N2 C1 H4 109.252
N2 C1 H5 109.252 H3 C1 H4 108.095
H3 C1 H5 108.095 H4 C1 H5 107.442
H6 N2 H7 106.967
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.779      
2 N -0.353      
3 H -0.105      
4 H -0.138      
5 H -0.138      
6 H -0.023      
7 H -0.023      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.314 0.378 0.000 1.367
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.122 2.166 0.000
y 2.166 -14.411 0.000
z 0.000 0.000 -12.624
Traceless
 xyz
x -1.605 2.166 0.000
y 2.166 -0.538 0.000
z 0.000 0.000 2.143
Polar
3z2-r24.286
x2-y2-0.711
xy2.166
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.361 0.016 0.000
y 0.016 3.854 0.000
z 0.000 0.000 3.354


<r2> (average value of r2) Å2
<r2> 26.591
(<r2>)1/2 5.157