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

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-133.899718
Energy at 298.15K-133.905240
HF Energy-133.899718
Nuclear repulsion energy72.273095
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 B3PW91/6-31G(2df,p)
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' 3143 3021 30.77      
2 A' 3082 2963 24.55      
3 A' 2997 2881 59.23      
4 A' 2980 2865 46.16      
5 A' 1762 1694 18.35      
6 A' 1504 1446 18.96      
7 A' 1472 1416 3.00      
8 A' 1429 1373 1.91      
9 A' 1238 1190 17.29      
10 A' 1121 1078 0.31      
11 A' 987 949 12.89      
12 A' 471 453 6.09      
13 A" 3105 2985 15.08      
14 A" 1471 1414 4.10      
15 A" 1143 1099 0.20      
16 A" 1060 1019 16.41      
17 A" 700 673 1.17      
18 A" 224 215 7.69      

Unscaled Zero Point Vibrational Energy (zpe) 14943.5 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 14366.7 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 B3PW91/6-31G(2df,p)
ABC
1.78107 0.35761 0.31515

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.071 -0.415 0.000
N2 0.000 0.553 0.000
C3 1.184 0.118 0.000
H4 -0.729 -1.463 0.000
H5 -1.704 -0.248 0.879
H6 -1.704 -0.248 -0.879
H7 1.443 -0.953 0.000
H8 2.015 0.826 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 H7 H8
C11.44432.31791.10221.09591.09592.57143.3270
N21.44431.26202.14442.07842.07842.08612.0338
C32.31791.26202.48243.04173.04171.10161.0917
H41.10222.14442.48241.78851.78852.23173.5740
H51.09592.07843.04171.78851.75763.34313.9703
H61.09592.07843.04171.78851.75763.34313.9703
H72.57142.08611.10162.23173.34313.34311.8685
H83.32702.03381.09173.57403.97033.97031.8685

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 117.691 N2 C1 H4 114.048
N2 C1 H5 109.041 N2 C1 H6 109.041
N2 C3 H7 123.775 N2 C3 H8 119.383
H4 C1 H5 108.913 H4 C1 H6 108.913
H5 C1 H6 106.623 H7 C3 H8 116.842
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.360      
2 N -0.105      
3 C -0.224      
4 H 0.118      
5 H 0.157      
6 H 0.157      
7 H 0.114      
8 H 0.143      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.322 -1.345 0.000 1.383
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.134 0.595 0.000
y 0.595 -20.420 0.000
z 0.000 0.000 -19.336
Traceless
 xyz
x 3.744 0.595 0.000
y 0.595 -2.685 0.000
z 0.000 0.000 -1.059
Polar
3z2-r2-2.118
x2-y24.286
xy0.595
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.137 0.153 0.000
y 0.153 4.143 0.000
z 0.000 0.000 3.011


<r2> (average value of r2) Å2
<r2> 48.088
(<r2>)1/2 6.935