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All results from a given calculation for CH2NCH3 (N-methylmethanimine)

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-133.020638
Energy at 298.15K-133.026119
HF Energy-133.020638
Nuclear repulsion energy70.958453
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 PBEPBE/3-21G
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' 3069 3041 38.11      
2 A' 3021 2994 17.55      
3 A' 2903 2877 78.01      
4 A' 2896 2870 32.46      
5 A' 1642 1627 13.37      
6 A' 1514 1500 25.65      
7 A' 1478 1464 1.55      
8 A' 1413 1401 4.50      
9 A' 1194 1184 4.33      
10 A' 1099 1089 1.74      
11 A' 876 868 10.84      
12 A' 457 453 7.20      
13 A" 3049 3021 13.83      
14 A" 1498 1484 6.52      
15 A" 1111 1101 0.42      
16 A" 1034 1025 30.04      
17 A" 689 683 1.97      
18 A" 235 233 9.41      

Unscaled Zero Point Vibrational Energy (zpe) 14589.1 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 14456.3 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 PBEPBE/3-21G
ABC
1.70801 0.34392 0.30272

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.095 -0.436 0.000
N2 0.000 0.570 0.000
C3 1.206 0.125 0.000
H4 -0.743 -1.491 0.000
H5 -1.723 -0.260 0.891
H6 -1.723 -0.260 -0.891
H7 1.482 -0.951 0.000
H8 2.040 0.839 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 H7 H8
C11.48712.36811.11241.10381.10382.62763.3844
N21.48711.28552.19122.10982.10982.12372.0577
C32.36811.28552.53153.08533.08531.11071.0982
H41.11242.19122.53151.80801.80802.28913.6296
H51.10382.10983.08531.80801.78123.39714.0202
H61.10382.10983.08531.80801.78123.39714.0202
H72.62762.12371.11072.28913.39713.39711.8752
H83.38442.05771.09823.62964.02024.02021.8752

picture of N-methylmethanimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 117.142 N2 C1 H4 114.126
N2 C1 H5 108.130 N2 C1 H6 108.130
N2 C3 H7 124.656 N2 C3 H8 119.160
H4 C1 H5 109.337 H4 C1 H6 109.337
H5 C1 H6 107.575 H7 C3 H8 116.185
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.487      
2 N -0.374      
3 C -0.161      
4 H 0.182      
5 H 0.233      
6 H 0.233      
7 H 0.165      
8 H 0.209      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.126 -1.472 0.000 1.478
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.148 0.864 0.000
y 0.864 -20.822 0.000
z 0.000 0.000 -19.665
Traceless
 xyz
x 4.096 0.864 0.000
y 0.864 -2.916 0.000
z 0.000 0.000 -1.180
Polar
3z2-r2-2.360
x2-y24.674
xy0.864
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.876 0.159 0.000
y 0.159 3.772 0.000
z 0.000 0.000 2.407


<r2> (average value of r2) Å2
<r2> 49.619
(<r2>)1/2 7.044