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 CH2NCH3 (N-methylmethanimine)

using model chemistry: HF/aug-cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-133.113991
Energy at 298.15K-133.119640
HF Energy-133.113991
Nuclear repulsion energy72.921550
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-pVTZ
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' 3288 2993 33.27      
2 A' 3207 2919 40.56      
3 A' 3170 2886 55.26      
4 A' 3128 2847 57.07      
5 A' 1903 1732 33.06      
6 A' 1632 1485 28.41      
7 A' 1601 1457 0.04      
8 A' 1567 1426 4.52      
9 A' 1358 1236 21.75      
10 A' 1218 1108 0.60      
11 A' 1042 949 15.95      
12 A' 514 468 6.91      
13 A" 3224 2935 26.89      
14 A" 1599 1455 5.20      
15 A" 1248 1136 1.07      
16 A" 1196 1089 22.64      
17 A" 744 678 0.73      
18 A" 219 200 8.80      

Unscaled Zero Point Vibrational Energy (zpe) 15927.9 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 14500.8 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 HF/aug-cc-pVTZ
ABC
1.84987 0.35997 0.31882

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.066 -0.430 0.000
N2 0.000 0.542 0.000
C3 1.176 0.141 0.000
H4 -0.710 -1.458 0.000
H5 -1.688 -0.273 0.872
H6 -1.688 -0.273 -0.872
H7 1.446 -0.910 0.000
H8 1.983 0.855 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 H7 H8
C11.44282.31341.08781.08281.08282.55793.3093
N21.44281.24192.12242.06732.06732.04922.0079
C32.31341.24192.47273.02193.02191.08541.0781
H41.08782.12242.47271.76691.76692.22533.5507
H51.08282.06733.02191.76691.74473.31523.9384
H61.08282.06733.02191.76691.74473.31523.9384
H72.55792.04921.08542.22533.31523.31521.8449
H83.30932.00791.07813.55073.93843.93841.8449

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 118.830 N2 C1 H4 113.259
N2 C1 H5 109.048 N2 C1 H6 109.048
N2 C3 H7 123.267 N2 C3 H8 119.712
H4 C1 H5 108.983 H4 C1 H6 108.983
H5 C1 H6 107.351 H7 C3 H8 117.022
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.734      
2 N -0.373      
3 C -0.907      
4 H 0.330      
5 H 0.324      
6 H 0.324      
7 H 0.513      
8 H 0.522      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.579 -1.616 0.000 1.717
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.294 0.618 0.000
y 0.618 -21.139 0.000
z 0.000 0.000 -19.986
Traceless
 xyz
x 4.268 0.618 0.000
y 0.618 -2.999 0.000
z 0.000 0.000 -1.269
Polar
3z2-r2-2.538
x2-y24.845
xy0.618
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.523 0.082 0.000
y 0.082 4.631 0.000
z 0.000 0.000 3.858


<r2> (average value of r2) Å2
<r2> 47.936
(<r2>)1/2 6.924