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: B3PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/STO-3G
 hartrees
Energy at 0K-132.221890
Energy at 298.15K-132.227210
HF Energy-132.221890
Nuclear repulsion energy70.383914
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 B3PW91/STO-3G
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' 3481 3080 4.81      
2 A' 3465 3066 3.36      
3 A' 3307 2927 1.69      
4 A' 3288 2910 3.28      
5 A' 1784 1579 7.85      
6 A' 1659 1468 12.15      
7 A' 1569 1388 1.88      
8 A' 1553 1375 3.77      
9 A' 1281 1134 2.26      
10 A' 1153 1021 2.09      
11 A' 989 876 2.67      
12 A' 501 444 2.95      
13 A" 3474 3074 0.01      
14 A" 1652 1462 4.43      
15 A" 1185 1049 0.16      
16 A" 1045 925 18.21      
17 A" 741 656 0.00      
18 A" 178 157 5.49      

Unscaled Zero Point Vibrational Energy (zpe) 16152.2 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 14294.7 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 B3PW91/STO-3G
ABC
1.58738 0.34599 0.30031

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.093 -0.442 0.000
N2 0.000 0.611 0.000
C3 1.203 0.101 0.000
H4 -0.718 -1.482 0.000
H5 -1.723 -0.281 0.892
H6 -1.723 -0.281 -0.892
H7 1.448 -0.979 0.000
H8 2.061 0.795 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 H7 H8
C11.51772.35911.10551.10421.10422.59723.3877
N21.51771.30592.21222.13582.13582.15042.0689
C32.35911.30592.48873.08283.08281.10811.1032
H41.10552.21222.48871.80271.80272.22313.5919
H51.10422.13583.08281.80271.78443.36764.0340
H61.10422.13583.08281.80271.78443.36764.0340
H72.59722.15041.10812.22313.36763.36761.8767
H83.38772.06891.10323.59194.03404.03401.8767

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 113.124 N2 C1 H4 114.062
N2 C1 H5 108.054 N2 C1 H6 108.054
N2 C3 H7 125.749 N2 C3 H8 118.112
H4 C1 H5 109.338 H4 C1 H6 109.338
H5 C1 H6 107.807 H7 C3 H8 116.139
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.169      
2 N -0.199      
3 C -0.064      
4 H 0.078      
5 H 0.096      
6 H 0.096      
7 H 0.074      
8 H 0.089      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.191 -1.560 0.000 1.572
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.786 0.539 0.000
y 0.539 -19.156 0.000
z 0.000 0.000 -18.031
Traceless
 xyz
x 2.807 0.539 0.000
y 0.539 -2.248 0.000
z 0.000 0.000 -0.559
Polar
3z2-r2-1.119
x2-y23.370
xy0.539
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.649 0.109 0.000
y 0.109 1.902 0.000
z 0.000 0.000 1.247


<r2> (average value of r2) Å2
<r2> 49.055
(<r2>)1/2 7.004